Section 07131 Self-Adhering Sheet Waterproofing Part 1

Mt. Pleasant Library 07131-1 100% Printing: 20 March 2009 CORE Group, P.C. SELF-ADHERING SHEET WATERPROOFING

SECTION 07131

PART 1 - GENERAL

SELF-ADHERING SHEET WATERPROOFING

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the following: 1. Modified bituminous sheet waterproofing, fabric reinforced. 2. Modified bituminous deck paving sheet waterproofing. 3. Modified bituminous composite panel waterproofing. 4. Adhesive-coated HDPE sheet waterproofing. 5. Molded-sheet drainage panels. 6. Insulation. 7. Plaza deck pavers and paver pedestals.

B. Related Sections include the following:

1. Division 7 Section "Joint Sealants" for joint-sealant materials and installation.

1.3 SUBMITTALS

A. Product Data: Include manufacturer's written instructions for evaluating, preparing, and treating substrate, technical data, and tested physical and performance properties of waterproofing.

B. Shop Drawings: Show locations and extent of waterproofing. Include details for substrate joints and cracks, sheet flashings, penetrations, inside and outside corners, tie-ins with adjoining waterproofing, and other termination conditions.

1. Include setting drawings showing layout, sizes, sections, profiles, and joint details of pedestal-supported concrete pavers.

C. Samples: For the following products:

1. 12-by-12-inch (300-by-300-mm)2.

square of waterproofing and flashing sheet. 12-by-12-inch (300-by-300-mm)

3. square of insulation.

4-by-4-inch (100-by-100-mm)4. Plaza deck paver, full sized, in each color and texture required.

square of drainage panel.

5. Paver pedestal assembly.


D. Installer Certificates: Signed by manufacturers certifying that installers comply with requirements.

E. Qualification Data: For Installer.

F. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for waterproofing.

G. Warranties: Special warranties specified in this Section.

1.4 QUALITY ASSURANCE

A. Installer Qualifications: A firm that is approved or licensed by waterproofing manufacturer for installation of waterproofing required for this Project.

B. Source Limitations: Obtain waterproofing materials, protection course and molded-sheet drainage panels through one source from a single manufacturer.

C. Mockups: Before beginning installation, install waterproofing to 100 sq. ft. (9.3 sq. m)

1. If Architect determines mockups do not comply with requirements, reapply waterproofing and reinstall overlying construction until mockups are approved.

deck and wall to demonstrate surface preparation, crack and joint treatment, corner treatment, and execution quality. Install pavers and paver supports to demonstrate aesthetic affects and set quality standards for materials and execution.

2. Approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion.

D. Preinstallation Conference: Conduct conference at Project site.

1. Review waterproofing requirements including surface preparation, substrate condition and pretreatment, minimum curing period, forecasted weather conditions, special details and sheet flashings, installation procedures, testing and inspection procedures, and protection and repairs.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Deliver liquid materials to Project site in original packages with seals unbroken, labeled with manufacturer's name, product brand name and type, date of manufacture, and directions for storing and mixing with other components.

B. Store liquid materials in their original undamaged packages in a clean, dry, protected location and within temperature range required by waterproofing manufacturer.

C. Remove and replace liquid materials that cannot be applied within their stated shelf life.

D. Store rolls according to manufacturer's written instructions.

E. Protect stored materials from direct sunlight.


1.6 PROJECT CONDITIONS

A. Environmental Limitations: Apply waterproofing within the range of ambient and substrate temperatures recommended by waterproofing manufacturer. Do not apply waterproofing to a damp or wet substrate.

1. Do not apply waterproofing in snow, rain, fog, or mist.

B. Maintain adequate ventilation during preparation and application of waterproofing materials.

1.7 WARRANTY

A. Special Manufacturer's Warranty: Manufacturer's standard form in which manufacturer agrees to replace waterproofing material that does not comply with requirements or that fails to remain watertight within specified warranty period.

1. Warranty does not include failure of waterproofing due to failure of substrate prepared and treated according to requirements or formation of new joints and cracks in substrate exceeding 1/16 inch (1.6 mm)

2. Warranty Period: 10 years from date of Substantial Completion. in width.

B. Special Installer's Warranty: Specified form, signed by Installer, covering Work of this Section, for warranty period of five years.

1. Warranty includes removing and reinstalling protection board, drainage panels, insulation, pedestals, and pavers on plaza decks.

PART 2 - PRODUCTS

2.1 MODIFIED BITUMINOUS SHEET WATERPROOFING

A. Modified Bituminous Sheet, Fabric Reinforced: 60-mil- (1.5-mm-) thick, self-adhering sheet consisting of rubberized-asphalt membrane embedded in spun-bonded polyester or fiberglass nonwoven fabric reinforcement laminated to a 0.50-mil- (0.01-mm-)

thick polyester film with release liner on adhesive side.

1. Products: Subject to compliance with requirements, provide one of the following:

a. Protecto Wrap Company; Jiffy Seal 140/60. b. Royston Laboratories, Div. of Chase Corporation; Royal-Gard.

2. Physical Properties:

a. Pliability: No cracks when bent 180 degrees over a 1-inch (25-mm) mandrel at minus 25 deg F (minus 32 deg C)

b. Hydrostatic-Head Resistance: ; ASTM D 146.

150 feet (45 m)c. Vapor Permeance:

minimum. 0.05 perms (2.9 ng/Pa x s x sq. m); ASTM E 96, Water

Method.


2.2 MODIFIED BITUMINOUS DECK PAVING SHEET WATERPROOFING

A. Modified Bituminous Deck Paving Sheet: Provide one of the products described below:

1. 60-mil- to 70-mil- (1.5-mm- to 1.8-mil-) thick, self-adhering sheets consisting of 53 to 56 mils (1.3 to 1.4 mm) of rubberized asphalt laminated to a heat-resisting, 9- to 12-mil- (0.2- to 0.3-mm-)


thick, woven polypropylene geotextile reinforcement with release liner on adhesive side.

a. Carlisle Coatings & Waterproofing Inc.; CCW 711. b. Grace, W. R. & Co.; Bituthene 5000. c. Meadows, W. R., Inc.; SealTight Mel-Dek. d. Pecora Corporation; Duramem 712 Pre-Pave. e. Polyguard Products; Polyguard 665. f. Progress Unlimited, Inc.; Plastiwrap 65. g. Protecto Wrap Company; Jiffy Seal 400. h. Royston Laboratories, Div. of Chase Corporation; 10AN Easy Pave ER or

10A Easy Pave. i. Tamko Roofing Products, Inc.; Bridgeguard.

3. Physical Properties:

a. Tensile Strength, Membrane: 50 lbf/in (8.75 kN/m)b. Pliability: Unaffected when bent 180 degrees over a

minimum; ASTM D 882. 1/4-inch (6.4-mm) mandrel at

minus 15 deg F (minus 26 deg C)c. Puncture Resistance, Mesh:

; ASTM D 146. 200 lbf (890 N)

2.3 MODIFIED BITUMINOUS COMPOSITE PANEL WATERPROOFING

minimum; ASTM E 154.

A. Modified Bituminous Composite Panel: 60-mil- (1.5-mm-)

thick, multilaminated panel consisting of an SBS rubberized asphalt compound integrally laminated to a blue, high-density polyethylene film.

1. Products: Subject to compliance with requirements, provide the following:

a. Henry Company; Blueskin WP 200.

2. Physical Properties: a. Tensile Strength, Membrane: 325 psi (2.24 MPa); ASTM D 882. b. Peel Strength: 9 lbf/in (1576 N/m); ASTM D 903. c. Puncture Resistance: 50 lbf (222 N) minimum; ASTM E 154. d. Water Vapor Transmission: 0.05 perms (2.8 ng/Pa x s x m2

e. Moisture Absorption: 0.2% maximum; ASTM D 570-81. ); ASTM E 96.

3. Protection Course: ASTM D 6506, semirigid sheets of fiberglass or mineral-reinforced-

asphaltic core, pressure laminated between two asphalt-saturated fibrous liners and as follows: a. Thickness: 1/4 inch (6 mm), nominal.


b. Adhesive: Rubber-based solvent type recommended by waterproofing manufacturer for type of protection course.

2.4 ADHESIVE-COATED HDPE SHEET WATERPROOFING

A. Products: Subject to compliance with requirements, provide the following:

1. Grace, W. R. & Co.; Preprufe 160R and 300R.

B. Adhesive-Coated HDPE Sheet for Vertical Applications: 32-mil- (0.8-mm-) thick, uniform, flexible sheets consisting of 16-mil- (0.4-mm-)

1. Tensile Strength, Film:

thick, HDPE sheet coated with a pressure-sensitive rubber adhesive, a protective adhesive coating, and a release liner with the following physical properties:

4000 psi (27.6 MPa)2. Low-Temperature Flexibility: Pass at

minimum; ASTM D 412. minus 10 deg F (minus 23 deg C)

3. Peel Adhesion to Concrete: ; ASTM D 1970.

5 lbf/in. (875 N/m)4. Lap Adhesion:

; ASTM D 903, modified. 2.5 lbf/in. (440 N/m)

5. Hydrostatic-Head Resistance: ; ASTM D 1876, modified.

231 feet (70 m)6. Vapor Permeance:

; ASTM D 5385, modified. 0.01 perms (0.6 ng/Pa x s x sq. m)

7. Water Absorption: 0.5 percent; ASTM D 570. ; ASTM E 96, Water Method.

C. Adhesive-Coated HDPE Sheet for Horizontal Applications: 46-mil- (1.2-mm-) thick, uniform, flexible sheets consisting of 30-mil- (0.76-mm-)

1. Tensile Strength, Film:

thick, HDPE sheet coated with a pressure-sensitive rubber adhesive, a protective adhesive coating, a detackifying surface treatment, an uncoated self-adhering side lap strip, and a release liner with the following physical properties:

4000 psi (27.6 MPa)2. Low-Temperature Flexibility: Pass at

minimum; ASTM D 412. minus 10 deg F (minus 23 deg C)

3. Peel Adhesion to Concrete: ; ASTM D 1970.

5 lbf/in. (875 N/m)4. Lap Adhesion:

; ASTM D 903, modified. 2.5 lbf/in. (440 N/m)

5. Hydrostatic-Head Resistance: ; ASTM D 1876, modified.

231 feet (70 m)6. Vapor Permeance:

; ASTM D 5385, modified. 0.01 perms (0.6 ng/Pa x s x sq. m)

7. Water Absorption: 0.5 percent; ASTM D 570. ; ASTM E 96, Water Method.

2.5 AUXILIARY MATERIALS

A. General: Furnish auxiliary materials recommended by waterproofing manufacturer for intended use and compatible with sheet waterproofing.

1. Furnish liquid-type auxiliary materials that comply with VOC limits of authorities having jurisdiction.

B. Primer: Liquid waterborne primer recommended for substrate by manufacturer of sheet waterproofing material.

C. Surface Conditioner: Liquid, waterborne surface conditioner recommended for substrate by manufacturer of sheet waterproofing material.


D. Liquid Membrane: Elastomeric, two-component liquid, cold fluid applied, trowel grade or low viscosity.

E. Substrate Patching Membrane: Low-viscosity, two-component, asphalt-modified coating.

F. Sheet Strips: Self-adhering, rubberized-asphalt sheet strips of same material and thickness as sheet waterproofing.

G. Mastic, Adhesives, and Tape: Liquid mastic and adhesives, and adhesive tapes recommended by waterproofing manufacturer.

1. Detail Tape: Two-sided, pressure-sensitive, self-adhering reinforced tape, 4-1/2 inches (114 mm)

2. Detail Strips:

wide, with a tack-free protective adhesive coating on one side and release film on self-adhering side.

62.5-mil- (1.58-mm-) thick, felt-reinforced self-adhesive strip, 9 inches (229 mm)

H. Metal Termination Bars: Aluminum bars, approximately

wide, with release film on adhesive side.

1 by 1/8 inch (25 by 3 mm) thick, predrilled at 9-inch (229-mm)

I. Protection Course: ASTM D 6506, semirigid sheets of fiberglass or mineral-reinforced-asphaltic core, pressure laminated between two asphalt-saturated fibrous liners and as follows:

centers.

1. Thickness: 1/4 inch (6 mm)2. Adhesive: Rubber-based solvent type recommended by waterproofing manufacturer for

type of protection course.

, nominal.

2.6 MOLDED-SHEET DRAINAGE PANELS

A. Molded-Sheet Drainage Panel: Comply with Division 2 Section "Subdrainage."

B. Woven-Geotextile-Faced, Molded-Sheet Drainage Panel: Manufactured composite subsurface drainage panels consisting of a woven-geotextile facing with an apparent opening size not exceeding No. 40 (0.425-mm) sieve laminated to one side with a polymeric film bonded to the other side of a studded, nonbiodegradable, molded-plastic-sheet drainage core, with a horizontal flow rate not less than 2.8 gpm per ft. (35 L/min. per m)

2.7 INSULATION

.

A. Geotextile-Faced Wall Insulation Drainage Panels: Extruded-polystyrene board insulation complying with ASTM C 578, Type IV, 25-psi (173-kPa) or Type VI, 40-psi (276-kPa)

minimum compressive strength; fabricated with tongue-and-groove edges and with 1 side having grooved drainage channels faced with nonwoven geotextile filter fabric.


a. Owens Corning; Insul-Drain. b. T. Clear Corporation; Thermadry 1250.


PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements and other conditions affecting performance.

1. Verify that concrete has cured and aged for minimum time period recommended by waterproofing manufacturer.

2. Verify that concrete is visibly dry and free of moisture. Test for capillary moisture by plastic sheet method according to ASTM D 4263.

3. Verify that compacted subgrade is dry, smooth, and sound; and ready to receive adhesive-coated HDPE sheet.

4. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 SURFACE PREPARATION

A. Clean, prepare, and treat substrates according to manufacturer's written instructions. Provide clean, dust-free, and dry substrates for waterproofing application.

B. Mask off adjoining surfaces not receiving waterproofing to prevent spillage and overspray affecting other construction.

C. Remove grease, oil, bitumen, form-release agents, paints, curing compounds, and other penetrating contaminants or film-forming coatings from concrete.

D. Remove fins, ridges, mortar, and other projections and fill honeycomb, aggregate pockets, holes, and other voids.

E. Prepare, fill, prime, and treat joints and cracks in substrates. Remove dust and dirt from joints and cracks according to ASTM D 4258.

1. Install sheet strips and center over treated construction and contraction joints and cracks exceeding a width of 1/16 inch (1.6 mm) or 1/8 inch (3 mm)

F. Bridge and cover isolation joints, expansion joints and discontinuous deck-to-wall and deck-to-deck joints with overlapping sheet strips.

for modified bituminous deck paving waterproofing.

1. Invert and loosely lay first sheet strip over center of joint. Firmly adhere second sheet strip to first and overlap to substrate.

G. Corners: Prepare, prime, and treat inside and outside corners according to ASTM D 6135.

1. Install membrane strips centered over vertical inside corners. Install 3/4-inch (19-mm)

a. At footing-to-wall intersections, extend liquid membrane each direction from corner or install membrane strip centered over corner.

fillets of liquid membrane on horizontal inside corners and as follows:


b. At plaza deck-to-wall intersections, extend liquid membrane or sheet strips onto deck waterproofing and to finished height of sheet flashing.

H. Prepare, treat, and seal vertical and horizontal surfaces at terminations and penetrations through waterproofing and at drains and protrusions according to ASTM D 6135.

3.3 MODIFIED BITUMINOUS SHEET WATERPROOFING APPLICATION

A. Install modified bituminous sheets according to waterproofing manufacturer's written instructions and according to recommendations in ASTM D 6135.

B. Apply primer to substrates at required rate and allow to dry. Limit priming to areas that will be covered by sheet waterproofing in same day. Reprime areas exposed for more than 24 hours.

C. Apply and firmly adhere sheets over area to receive waterproofing. Accurately align sheets and maintain uniform 2-1/2-inch- (64-mm-)

1. When ambient and substrate temperatures range between

minimum lap widths and end laps. Overlap and seal seams and stagger end laps to ensure watertight installation.

25 and 40 deg F (minus 4 and plus 5 deg C), install self-adhering, modified bituminous sheets produced for low-temperature application. Do not use low-temperature sheets if ambient or substrate temperature is higher than 60 deg F (16 deg C)

D. Two-Ply Application: Install sheets to form a membrane with lap widths not less than 50 percent of sheet widths to provide a minimum of 2 thicknesses of sheet membrane over areas to receive waterproofing.

.

E. Horizontal Application: Apply sheets from low point to high point of decks to ensure that side laps shed water.

F. Apply continuous sheets over sheet strips bridging substrate cracks, construction, and contraction joints.

G. Seal exposed edges of sheets at terminations not concealed by metal counterflashings or ending in reglets with mastic.

H. Install sheet waterproofing and auxiliary materials to tie into adjacent waterproofing.

I. Repair tears, voids, and lapped seams in waterproofing not complying with requirements. Slit and flatten fishmouths and blisters. Patch with sheet waterproofing extending 6 inches (150 mm)

J. Install protection course with butted joints over waterproofing membrane immediately.

beyond repaired areas in all directions.

1. Molded-sheet drainage panels, insulation drainage panels and board insulation may be used in place of a separate protection course to vertical applications when approved by waterproofing manufacturer and installed immediately.

K. Correct deficiencies in or remove sheet waterproofing that does not comply with requirements; repair substrates, reapply waterproofing, and repair sheet flashings.


3.4 MODIFIED BITUMINOUS DECK PAVING SHEET WATERPROOFING APPLICATION

A. Install modified bituminous deck paving sheets according to waterproofing manufacturer's written instructions.

B. Apply primer to substrates at required rate and allow to dry. Limit priming to areas that will be covered by sheet waterproofing in same day. Reprime areas exposed for more than 24 hours.

C. Apply and firmly adhere sheets over areas to receive waterproofing. Accurately align sheets and maintain uniform 2-1/2-inch- (64-mm-) minimum lap widths and 6-inch (150-mm)

D. Apply sheet waterproofing from low point to high point of decks to ensure that side laps shed water.

end laps. Overlap and seal seams and stagger end laps to ensure watertight installation.

E. Apply continuous sheets over sheet strips bridging substrate cracks, construction, and contraction joints.

F. Seal edges of sheet waterproofing terminations with mastic.

G. Install sheet waterproofing and auxiliary materials to tie into adjacent waterproofing.

H. Repair tears, voids, and lapped seams in waterproofing not complying with requirements. Slit and flatten fishmouths and blisters. Patch with sheet waterproofing extending 6 inches (150 mm)

I. Correct deficiencies in or remove sheet waterproofing that does not comply with requirements; repair substrates, reapply waterproofing, and repair sheet flashings.

beyond repaired areas in all directions.

3.5 MODIFIED BITUMINOUS COMPOSITE PANEL WATERPROOFING APPLICATION

A. Install modified bituminous composite panels according to waterproofing manufacturer's written instructions.

B. Apply primer to substrate at required rate and allow to dry. Limit priming to areas that will be covered by waterproofing in same day. Reprime areas exposed for more than 24 hours.

C. Install and firmly adhere composite panels over area to receive waterproofing. Accurately align and butt vertical and horizontal joints.

D. Seal vertical and horizontal butt joints and exposed top, side, and bottom edges at composite panel waterproofing terminations with detail strips.

E. Correct deficiencies in or remove composite panel waterproofing that does not comply with requirements; repair substrates, reapply waterproofing, and repair detail strips.

3.6 ADHESIVE-COATED HDPE SHEET WATERPROOFING APPLICATION

A. Install adhesive-coated HDPE sheets according to manufacturer's written instructions.


B. Place and secure molded-sheet drainage panels over substrate. Lap edges and ends of geotextile to maintain continuity.

C. Vertical Applications: Install adhesive-coated HDPE sheet with HDPE face against substrate. Accurately align sheets and maintain uniform 3-inch- (75-mm-)

1. Securely fasten top termination of membrane with continuous metal termination bar anchored into substrate and cover with detailing tape.

minimum lap widths and end laps. Overlap and seal seams and stagger and tape end laps to ensure watertight installation. Mechanically fasten to substrate.

D. Horizontal Applications: Install adhesive-coated HDPE sheet with HDPE face against substrate. Accurately align sheets and maintain uniform 3-inch- (75-mm-)

E. Corners: Seal lapped terminations and cut edges of sheet waterproofing at inside and outside corners with detail tape.

minimum lap widths and end laps. Overlap and seal seams. Overlap, stagger, and seal end laps with detail tape to ensure watertight installation.

F. Seal penetrations through sheet waterproofing to provide watertight seal with detail tape patches or wraps and a liquid-membrane troweling.

G. Install sheet waterproofing and auxiliary materials to produce a continuous watertight tie into adjacent waterproofing.

H. Repair tears, voids, and lapped seams in waterproofing not complying with requirements. Tape perimeter of damaged or nonconforming area extending 6 inches (150 mm)

I. Correct deficiencies in or remove waterproofing that does not comply with requirements; repair substrates, reapply waterproofing, and repair sheet flashings.

beyond repaired areas in all directions. Apply a patch of sheet waterproofing and firmly secure with detail tape.

3.7 MOLDED-SHEET DRAINAGE PANEL INSTALLATION

A. Place and secure molded-sheet drainage panels, with geotextile facing away from wall or deck substrate, according to manufacturer's written instructions. Use adhesives or mechanical fasteners that do not penetrate waterproofing. Lap edges and ends of geotextile to maintain continuity. Protect installed molded-sheet drainage panels during subsequent construction.

1. For vertical applications, install board insulation and protection course before installing drainage panels.

3.8 INSULATION INSTALLATION

A. Install one or more layers of board insulation to achieve required thickness and insulation drainage panels over waterproofed surfaces. Cut and fit to within 3/4 inch (19 mm)

B. On vertical surfaces, set insulation units in adhesive or tape applied according to manufacturer's written instructions.

of projections and penetrations.


C. On horizontal surfaces, loosely lay insulation units according to manufacturer's written instructions. Stagger end joints and tightly abut insulation units.

3.9 PLAZA DECK PAVER INSTALLATION

A. Setting Bed: Install setting bed in locations and of thickness indicated to comply with requirements in Division 2 Section "Unit Pavers" and as indicated.

B. Install concrete pavers in locations indicated according to manufacturer's written instructions.

C. Accurately install adjustable-height paver pedestals and accessories in locations and to elevations required. Adjust for final level and slope with shims.

1. Fill paver pedestal with concrete mix, strike smooth with top of pedestal, and cure according to ACI 301.

D. Loosely lay pavers on pedestals, maintaining a uniform open joint width. Tightly seat pavers against spacers to eliminate lateral movement or drift of paving assembly. Align joint patterns parallel in each direction.

1. Lay out pavers to avoid less-than-half-width pavers at perimeter or other terminations.

E. Install pavers to not vary more than 1/16 inch (1.6 mm) in elevation between adjacent pavers or more than 1/16 inch (1.6 mm)

F. Maintain tolerances of paving installation within

from surface plane elevation of individual paver.

1/4 inch in 10 feet (1:48)

3.10 FIELD QUALITY CONTROL

of surface plane in any direction.

A. Engage a full-time site representative qualified by waterproofing membrane manufacturer to inspect substrate conditions; surface preparation; membrane application, flashings, protection, and drainage components; and to furnish daily reports to Architect.

B. Flood Testing: Flood test each deck area for leaks, according to recommendations in ASTM D 5957, after completing waterproofing but before overlying construction is placed. Install temporary containment assemblies, plug or dam drains, and flood with potable water.

1. Flood to an average depth of 2-1/2 inches (64 mm) with a minimum depth of 1 inch (25 mm) and not exceeding a depth of 4 inches (100 mm). Maintain 2 inches (51 mm)

2. Flood each area for 48 hours.

of clearance from top of sheet flashings.

3. After flood testing, repair leaks, repeat flood tests, and make further repairs until waterproofing installation is watertight.

C. Contractor will engage an independent testing agency to observe flood testing and examine underside of decks and terminations for evidence of leaks during flood testing.


3.11 PROTECTION AND CLEANING

A. Do not permit foot or vehicular traffic on unprotected membrane.

B. Protect waterproofing from damage and wear during remainder of construction period.

C. Protect installed board insulation and insulation drainage panels from damage due to UV light, harmful weather exposures, physical abuse, and other causes. Provide temporary coverings where insulation will be subject to abuse and cannot be concealed and protected by permanent construction immediately after installation.

D. Clean spillage and soiling from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction.

END OF SECTION 07131

Mt. Pleasant Library 07210-1 100% Printing: 20 March 2009 CORE Group, P.C. BUILDING INSULATION

SECTION 07210

PART 1 - GENERAL

BUILDING INSULATION



1.2 SUMMARY

A. Section Includes:

1. Foam-plastic board insulation. 2. Glass-fiber board insulation. 3. Glass-fiber blanket insulation. 4. Vapor retarders.

1.3 SUBMITTALS

A. Product Data: For each type of product indicated.

B. LEED Submittals:

1. Product Data for Credit MR 4.1 and Credit MR 4.2: For products having recycled content, documentation indicating percentages by weight of postconsumer and preconsumer recycled content. Include statement indicating costs for each product having recycled content.

C. Product test reports.

D. Research/evaluation reports.

PART 2 - PRODUCTS

2.1 FOAM-PLASTIC BOARD INSULATION

A. Extruded-Polystyrene Board Insulation: ASTM C 578, with maximum flame-spread and smoke-developed indexes of 75 and 450, respectively, per ASTM E 84.

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:


a. DiversiFoam Products. b. Dow Chemical Company (The). c. Owens Corning. d. Pactiv Building Products.

2. Type IV, 25 psi (173 kPa)

B. Molded-Polystyrene Board Insulation: ASTM C 578, with maximum flame-spread and smoke-developed indexes of 75 and 450, respectively, per ASTM E 84.

.


a. DiversiFoam Products. b. Plymouth Foam, Inc.

2. Type VIII, 20 psi (138 kPa)

2.2 GLASS-FIBER BOARD INSULATION

.

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. CertainTeed Corporation. 2. Johns Manville. 3. Knauf Insulation. 4. Owens Corning.

B. Glass-Fiber Board Insulation: ASTM C 612, Type IA; unfaced, with maximum flame-spread and smoke-developed indexes of 25 and 50, respectively, per ASTM E 84; passing ASTM E 136 for combustion characteristics. 1. Nominal density of 3 lb/cu. ft. (48 kg/cu. m), thermal resistivity of 4.3 deg F x h x sq.

ft./Btu x in. at 75 deg F (29.8 K x m/W at 24 deg C)

2.3 GLASS-FIBER BLANKET INSULATION

.


1. CertainTeed Corporation. 2. Guardian Building Products, Inc. 3. Johns Manville. 4. Knauf Insulation. 5. Owens Corning.

B. Unfaced, Glass-Fiber Blanket Insulation: ASTM C 665, Type I; with maximum flame-spread and smoke-developed indexes of 25 and 50, respectively, per ASTM E 84; passing ASTM E 136 for combustion characteristics.


C. Foil-Faced, Glass-Fiber Blanket Insulation: ASTM C 665, Type III (reflective faced), Class B (faced surface with a flame-propagation resistance of 0.12 W/sq. cm); Category 1 (membrane is a vapor barrier), faced with foil scrim, foil-scrim kraft, or foil-scrim polyethylene.

2.4 MINERAL WOOL INSULATION

A. Basis-of-Design Product: Subject to compliance with requirements, provide RainBarrier 45 insulation products manufactured by Thermafiber, Inc. or approved equal product as determined by Architect from one of the following:

1. Fibrex Insulations Inc. 2. Isolatek International. 3. Owens Corning. 4. Roxul Inc.

B. ASTM C 612; for application in rain screen or cavity wall construction. 1. Provide with green fiber: 90% post-industrial recycled content. 2. Provide with foil-faced vapor retarder. 3. K-Value: ASTM C 518; 0.24. 4. R-Value: ASTM C 518; 4.2 per inch of thickness. 5. Thickness, Width and Length: As indicated on Drawings.

2.5 VAPOR RETARDERS

A. Polyethylene Vapor Retarders: ASTM D 4397, 6 mils (0.15 mm) thick, with maximum permeance rating of 0.13 perm (7.5 ng/Pa x s x sq. m)

B. Vapor-Retarder Tape: Pressure-sensitive tape of type recommended by vapor-retarder manufacturer for sealing joints and penetrations in vapor retarder.

.

PART 3 - EXECUTION

3.1 INSTALLATION, GENERAL

A. Comply with insulation manufacturer's written instructions applicable to products and applications indicated.

B. Install insulation that is undamaged, dry, and unsoiled and that has not been left exposed to ice, rain, or snow at any time.

C. Extend insulation to envelop entire area to be insulated. Cut and fit tightly around obstructions and fill voids with insulation. Remove projections that interfere with placement.

D. Provide sizes to fit applications indicated and selected from manufacturer's standard thicknesses, widths, and lengths. Apply single layer of insulation units to produce thickness indicated unless multiple layers are otherwise shown or required to make up total thickness.


3.2 INSTALLATION OF BELOW-GRADE INSULATION

A. On vertical footing and foundation wall surfaces, set insulation units using manufacturer's recommended adhesive according to manufacturer's written instructions.

1. If not otherwise indicated, extend insulation a minimum of 36 inches (915 mm)

B. On horizontal surfaces under slabs, loosely lay insulation units according to manufacturer's written instructions. Stagger end joints and tightly abut insulation units.

below exterior grade line.

1. If not otherwise indicated, extend insulation a minimum of 36 inches (915 mm)

3.3 INSTALLATION OF CAVITY-WALL INSULATION

in from exterior walls.

A. Foam-Plastic Board Insulation: Install pads of adhesive spaced approximately 24 inches (610 mm)

1. Supplement adhesive attachment of insulation by securing boards with two-piece wall ties designed for this purpose and specified in Division 4 Section "Unit Masonry Assemblies."

o.c. both ways on inside face, and as recommended by manufacturer. Fit courses of insulation between wall ties and other obstructions, with edges butted tightly in both directions. Press units firmly against inside substrates.

B. Mineral Wool Insulation: Mechanically attach mineral wool insulation according to manufacturer’s written instructions using manufacturer’s standard pins and washers spaced no greater than 24 inches (610 mm) on center.

3.4 INSTALLATION OF INSULATION FOR FRAMED CONSTRUCTION

A. Apply insulation units to substrates by method indicated, complying with manufacturer's written instructions. If no specific method is indicated, bond units to substrate with adhesive or use mechanical anchorage to provide permanent placement and support of units.

B. Foam-Plastic Board Insulation: Seal joints between units by applying adhesive, mastic, or sealant to edges of each unit to form a tight seal as units are shoved into place. Fill voids in completed installation with adhesive, mastic, or sealant as recommended by insulation manufacturer.

C. Glass-Fiber Blanket Insulation: Install in cavities formed by framing members according to the following requirements:

1. Use insulation widths and lengths that fill the cavities formed by framing members. If more than one length is required to fill the cavities, provide lengths that will produce a snug fit between ends.

2. Place insulation in cavities formed by framing members to produce a friction fit between edges of insulation and adjoining framing members.


3. Maintain 3-inch (76-mm)

4. Install eave ventilation troughs between roof framing members in insulated attic spaces at vented eaves.

clearance of insulation around recessed lighting fixtures not rated for or protected from contact with insulation.

5. For metal-framed wall cavities where cavity heights exceed 96 inches (2438 mm)

6. Vapor-Retarder-Faced Blankets: Tape joints and ruptures in vapor-retarder facings, and seal each continuous area of insulation to ensure airtight installation.

, support unfaced blankets mechanically and support faced blankets by taping flanges of insulation to flanges of metal studs.

a. Exterior Walls: Set units with facing placed toward as indicated on Drawings. b. Interior Walls: Set units with facing placed toward areas of high humidity and as

indicated on Drawings.

3.5 INSTALLATION OF INSULATION FOR CONCRETE SUBSTRATES

A. Install board insulation on concrete substrates by adhesively attached, spindle-type insulation anchors as follows:

1. Fasten insulation anchors to concrete substrates with insulation anchor adhesive according to anchor manufacturer's written instructions. Space anchors according to insulation manufacturer's written instructions for insulation type, thickness, and application indicated.

2. Apply insulation standoffs to each spindle to create cavity width indicated between concrete substrate and insulation.

3. After adhesive has dried, install board insulation by pressing insulation into position over spindles and securing it tightly in place with insulation-retaining washers, taking care not to compress insulation below indicated thickness.

4. Where insulation will not be covered by other building materials, apply capped washers to tips of spindles.

3.6 INSTALLATION OF CURTAIN-WALL INSULATION

A. Install board insulation in curtain-wall construction where indicated on Drawings according to curtain-wall manufacturer's written instructions.

1. Hold insulation in place by securing metal clips and straps or integral pockets within window frames, spaced at intervals recommended in writing by insulation manufacturer to hold insulation securely in place without touching spandrel glass. Maintain cavity width of dimension indicated between insulation and glass.

2. Install insulation where it contacts perimeter fire-containment system to prevent insulation from bowing under pressure from perimeter fire-containment system.

3.7 INSTALLATION OF VAPOR RETARDERS

A. Place vapor retarders on side of construction indicated on Drawings. Extend vapor retarders to extremities of areas to protect from vapor transmission. Secure vapor retarders in place with


adhesives or other anchorage system as indicated. Extend vapor retarders to cover miscellaneous voids in insulated substrates, including those filled with loose-fiber insulation.

B. Seal vertical joints in vapor retarders over framing by lapping no fewer than two studs.

1. Fasten vapor retarders to wood framing at top, end, and bottom edges; at perimeter of wall openings; and at lap joints. Space fasteners 16 inches (406 mm)

2. Before installing vapor retarders, apply urethane sealant to flanges of metal framing including runner tracks, metal studs, and framing around door and window openings. Seal overlapping joints in vapor retarders with vapor-retarder tape according to vapor-retarder manufacturer's written instructions. Seal butt joints with vapor-retarder tape. Locate all joints over framing members or other solid substrates.

o.c.

3. Firmly attach vapor retarders to metal framing and solid substrates with vapor-retarder fasteners as recommended by vapor-retarder manufacturer.

C. Seal joints caused by pipes, conduits, electrical boxes, and similar items penetrating vapor retarders with vapor-retarder tape to create an airtight seal between penetrating objects and vapor retarders.

D. Repair tears or punctures in vapor retarders immediately before concealment by other work. Cover with vapor-retarder tape or another layer of vapor retarders.


Mt. Pleasant Library 07272-1 100% Printing: 20 March 2009 CORE Group, P.C. FLUID-APPLIED MEMBRANE AIR BARRIERS

SECTION 07272

PART 1 - GENERAL

FLUID-APPLIED MEMBRANE AIR BARRIERS



1.2 SUMMARY

A. This Section includes the following:

1. Fluid-applied non-permeable air barrier membrane, vapor retarding.

B. Related Sections include the following:

1. Division 1 Section "Allowances" for testing and inspecting allowances. 2. Division 4 Section "Unit Masonry Assemblies" for embedded flashings. 3. Division 7 Section "Building Insulation" for foam-plastic board insulation. 4. Division 7 Section "Sheet Metal Flashing and Trim" for sheet metal flashings. 5. Division 7 Section "Joint Sealants" for joint-sealant materials and installation.

1.3 DEFINITIONS

A. ABAA: Air Barrier Association of America.

B. Air Barrier Assembly: The collection of air barrier materials and auxiliary materials applied to an opaque wall, including joints and junctions to abutting construction, to control air movement through the wall.

1.4 SUBMITTALS

A. Product Data: Include manufacturer's written instructions for evaluating, preparing, and treating substrate; technical data; and tested physical and performance properties of air barrier.

B. Submit documentation from an approved, independent testing laboratory certifying the air leakage and vapor permeance rates of the air barrier membranes, including primary membrane and the transition sheets, exceed the requirements of the Massachusetts Energy Code and are in accordance with ASTM E 2178. 1. Test report submittals shall include test results on porous substrate and include sustained

wind load and gust load air leakage results


C. Shop Drawings: Show locations and extent of air barrier. Include details for substrate joints and cracks, counterflashing strip, penetrations, inside and outside corners, terminations, and tie-ins with adjoining construction.

1. Include details of interfaces with other materials that form part of air barrier. 2. Include details of mockups.

D. Product Certificates: For air barriers, certifying compatibility of air barrier and accessory materials with Project materials that connect to or that come in contact with the barrier; signed by product manufacturer.

E. Qualification Data: For Applicator.


A. Applicator Qualifications: A firm experienced in applying air barrier materials similar in material, design, and extent to those indicated for this Project, whose work has resulted in applications with a record of successful in-service performance and that is an ABAA-licensed contractor, employs certified and registered installers, and complies with ABAA's Quality Assurance Program.

B. Mockups: Before beginning installation of air barrier, build mockups of exterior wall assembly 150 sq. ft. (14 sq. m),

1. Coordinate construction of mockup to permit inspection by Owner's testing agency of air barrier before external insulation and cladding is installed.

incorporating backup wall construction, external cladding, window, door frame and sill, insulation, and flashing to demonstrate surface preparation, crack and joint treatment, and sealing of gaps, terminations, and penetrations of air barrier membrane.

2. Include junction with roofing membrane, building corner condition and foundation wall intersection, as applicable.

3. Test mockup for air and water infiltration to conform to Division 1 Section 01400, Quality Requirements and ASTM E 783 and ASTM E 1105.

4. If Architect determines mockups do not comply with requirements, reconstruct mockups and apply air barrier until mockups are approved.

5. Approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion.

C. Single-Source Responsibility: 1. Obtain air barrier materials from a single manufacturer regularly engaged in

manufacturing the product. 2. Provide products which comply with all federal, state and local regulations controlling

use of volatile organic compounds (VOCs).


1. Include installers of other construction connecting to air barrier, including roofing, waterproofing, architectural precast concrete, masonry, sealants, windows, glazed curtain walls, and door frames.


2. Review air barrier requirements including surface preparation, substrate condition and pretreatment, minimum substrate curing period, forecasted weather conditions, special details and sheet flashings, mockups, installation procedures, sequence of installation, testing and inspecting procedures, and protection and repairs.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Store liquid materials in their original undamaged packages in a clean, dry, protected location and within temperature range required by air barrier manufacturer.

B. Remove and replace liquid materials that cannot be applied within their stated shelf life.

C. Store rolls according to manufacturer's written instructions.

D. Protect stored materials from direct sunlight.


A. Environmental Limitations: Apply air barrier within the range of ambient and substrate temperatures recommended by air barrier manufacturer. Protect substrates from environmental conditions that affect performance of air barrier. Do not apply air barrier to a damp or wet substrate or during snow, rain, fog, or mist.

1.8 WARRANTY

A. Provide manufacturer’s standard 10-year material warranty.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Vapor-Retarding Membrane Air Barrier: Elastomeric emulsion membrane. 1. Basis-of-Design Product: Subject to compliance with requirements, provide Air-Bloc 32

manufactured by Henry Company or approved equal product as determined by Architect from one of the following: a. Grace, W. R. & Co.; Perm-A-Barrier Liquid. b. Rubber Polymer Corporation; Rub-R-Wall Airtight.

2. Physical and Performance Properties:

a. Membrane Air Permeance: Not to exceed 0.00012 cfm x sq. ft. of surface area at 1.57-lbf/sq. ft. (0.006 L/s x sq. m of surface area at 75-Pa)

b. Membrane Vapor Permeance: Not to exceed

pressure difference; ASTM E 2178.

0.08 perm (5 ng/Pa x s x sq. m); ASTM E 96.


B. Self-Adhering Transition Membrane: 1. Basis-of-Design Product: Subject to compliance with requirements, provide Blueskin

SA, an SBS-modified bitumen, self-adhering sheet membrane, manufactured by Henry Company or approved equal product as determined by Architect.





0.05 perm (2.8 ng/Pa x s x sq. m)

C. Self-Adhering Through-Wall Flashing Membrane:

; ASTM E 96.

1. Basis-of-Design Product: Subject to compliance with requirements, provide Blueskin

TWF, an SBS-modified bitumen, self-adhering sheet membrane, manufactured by Henry Company or approved equal product as determined by Architect.

2.2 AUXILIARY MATERIALS

A. General: Auxiliary materials recommended by air barrier manufacturer for intended use and compatible with air barrier membrane. Liquid-type auxiliary materials shall comply with VOC limits of authorities having jurisdiction.

B. Primer: For self-adhering membranes at temperatures above 25 degrees F (3.89 degrees C) shall be Aquatac Primer, a polymer emulsion-based adhesive, manufactured by Henry Company or approved equal product as determined by Architect. 1. Color: Aqua.

C. Primer: For self-adhering membranes at all temperatures shall be Blueskin Adhesive, a synthetic rubber-based adhesive manufactured by Henry Company or approved equal product as determined by Architect. 1. Color: Blue.

D. Joint Treatment, Penetration and Termination Sealant: ASTM C 920, Type S, Grade NS, Class 25; HE925 BES Sealant, a moisture cure, medium modulus, polymer-modified sealing compound, manufactured by Henry Company or approved equal product as determined by Architect. 1. Compatible with sheet air barrier, roofing and waterproofing membranes and substrates. 2. Alternate Joint Treatment Fabric: HE 183 yellow open-weave glass fabric, manufactured

by Henry Company or approved equal product as determined by Architect.

E. Insulation Adhesive: Air-Bloc 21 Insulation Adhesive, a synthetic, trowel-applied, rubber-based adhesive, manufactured by Henry Company or approved equal product as determined by Architect.






0.03 perm (1.6 ng/Pa x s x sq. m)

PART 3 - EXECUTION

; ASTM E 96.

3.1 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements and other conditions affecting performance.

1. Verify that substrates are sound and free of oil, grease, dirt, excess mortar, or other contaminants.

2. Verify that concrete has cured and aged for minimum time period recommended by air barrier manufacturer.

3. Verify that concrete is visibly dry and free of moisture. Test for capillary moisture by plastic sheet method according to ASTM D 4263.

4. Verify that masonry joints are flush and completely filled with mortar. 5. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 SURFACE PREPARATION

A. Clean, prepare, treat, and seal substrate according to manufacturer's written instructions. Provide clean, dust-free, and dry substrate for air barrier application.

B. Mask off adjoining surfaces not covered by air barrier to prevent spillage and overspray affecting other construction.

C. Remove grease, oil, bitumen, form-release agents, paints, curing compounds, and other penetrating contaminants or film-forming coatings from concrete.

D. Remove fins, ridges, mortar, and other projections and fill honeycomb, aggregate pockets, holes, and other voids in concrete with substrate patching membrane.

E. Remove excess mortar from masonry ties, shelf angles, and other obstructions.

F. At changes in substrate plane, apply sealant or termination mastic beads at sharp corners and edges to form a smooth transition from one plane to another.

G. Cover gaps in substrate plane and form a smooth transition from one substrate plane to another with stainless-steel sheet mechanically fastened to structural framing to provide continuous support for air barrier.


3.3 JOINT TREATMENT

A. Concrete and Masonry: Prepare, treat, rout, and fill joints and cracks in substrate according to ASTM C 1193 and air barrier manufacturer's written instructions. Remove dust and dirt from joints and cracks complying with ASTM D 4258 before coating surfaces.

1. Prime substrate and apply a single thickness of preparation coat strip extending a minimum of 3 inches (75 mm)

B. Gypsum Substrate: Fill joints greater than

along each side of joints and cracks. Apply a double thickness of air barrier membrane and embed a joint reinforcing strip in preparation coat.

1/4 inch (6 mm)

3.4 TRANSITION STRIP INSTALLATION

with sealant according to ASTM C 1193 and with air barrier manufacturer's written instructions. Apply first layer of fluid air barrier membrane at joints. Tape joints with joint reinforcing strip after first layer is dry. Apply a second layer of fluid air barrier membrane over joint reinforcing strip.

A. Install strips, transition strips, and auxiliary materials according to air barrier manufacturer's written instructions to form a seal with adjacent construction and maintain a continuous air barrier.

1. Coordinate the installation of air barrier with installation of roofing membrane and base flashing to ensure continuity of air barrier with roofing membrane.

2. Install modified bituminous strip on roofing membrane or base flashing so that a minimum of 3 inches (75 mm)

B. Apply primer to substrates at required rate and allow to dry. Limit priming to areas that will be covered by air barrier sheet in same day. Reprime areas exposed for more than 24 hours.

of coverage is achieved over both substrates.

1. Prime glass-fiber-surfaced gypsum sheathing with number of prime coats needed to achieve required bond, with adequate drying time between coats.

C. Connect and seal exterior wall air barrier membrane continuously to roofing membrane air barrier, concrete below-grade structures, floor-to floor construction, exterior glazing and window systems, glazed curtain-wall systems, storefront systems, exterior louvers, exterior door framing, and other construction used in exterior wall openings, using accessory materials as indicated.

D. At end of each working day, seal top edge of strips and transition strips to substrate with termination mastic.

E. Apply joint sealants forming part of air barrier assembly within manufacturer's recommended application temperature ranges. Consult manufacturer when sealant cannot be applied within these temperature ranges.

F. Wall Openings: Prime concealed perimeter frame surfaces of windows, curtain walls, storefronts, and doors. Apply modified bituminous transition strip so that a minimum of 3 inches (75 mm) of coverage is achieved over both substrates. Maintain 3 inches (75 mm) of full contact over firm bearing to perimeter frames with not less than 1 inch (25 mm) of full contact.


1. Modified Bituminous Transition Strip: Roll firmly to enhance adhesion.

G. Fill gaps in perimeter frame surfaces of windows, curtain walls, storefronts, and doors, and miscellaneous penetrations of air barrier membrane with foam sealant.

H. Seal strips and transition strips around masonry reinforcing or ties and penetrations with termination mastic.

I. Seal top of through-wall flashings to air barrier with an additional 6-inch- (150-mm-)

J. Seal exposed edges of strips at seams, cuts, penetrations, and terminations not concealed by metal counterflashings or ending in reglets with termination mastic.

wide, modified bituminous strip.

K. Repair punctures, voids, and deficient lapped seams in strips and transition strips. Slit and flatten fishmouths and blisters. Patch with transition strips extending 6 inches (150 mm)

3.5 AIR BARRIER MEMBRANE INSTALLATION

beyond repaired areas in strip direction.

A. Apply air barrier membrane to form a seal with strips and transition strips and to achieve a continuous air barrier according to air barrier manufacturer's written instructions.

B. Apply air barrier membrane within manufacturer's recommended application temperature ranges.

C. Apply primer to substrates at required rate and allow to dry. Limit priming to areas that will be covered by air barrier sheet in same day. Reprime areas exposed for more than 24 hours.

1. Prime glass-fiber-surfaced gypsum sheathing with number of prime coats needed to achieve required bond, with adequate drying time between coats.

D. Apply a continuous unbroken air barrier to substrates according to the following minimum thickness. Apply membrane in full contact around protrusions such as masonry ties.

1. Vapor-Retarding Membrane Air Barrier: 75-mil (1.88-mm) wet

E. Apply strip and transition strip over cured air membrane overlapping

film thickness.

3 inches (75 mm)

F. Do not cover air barrier until it has been tested and inspected by Owner's testing agency.

onto each surface according to air barrier manufacturer's written instructions.

G. Correct deficiencies in or remove air barrier that does not comply with requirements; repair substrates and reapply air barrier components.

3.6 TERMINATION SEALANT APPLICATION

A. Seal membrane terminations, heads of mechanical fasteners, masonry tie fasteners, around penetrations, ductwork, electrical and other apparatus extending through the primary water-


resistive air barrier membrane, and around the perimeter edge of membrane terminations at windows and door frames, with specified termination sealant.


A. Apply insulation adhesive with a notched trowel in a serpentine pattern over the air barrier membrane.

B. Immediately embed insulation into the adhesive and press firmly into place to ensure full contact.

C. Apply additional adhesive if allowed to skin over.


A. Testing Agency: Owner will engage a qualified testing agency to perform tests and inspections and prepare test reports.

B. Inspections: Air barrier materials and installation are subject to inspection for compliance with requirements. Inspections may include the following:

1. Continuity of air barrier system has been achieved throughout the building envelope with no gaps or holes.

2. Continuous structural support of air barrier system has been provided. 3. Masonry and concrete surfaces are smooth, clean and free of cavities, protrusions, and

mortar droppings. 4. Site conditions for application temperature and dryness of substrates have been

maintained. 5. Maximum exposure time of materials to UV deterioration has not been exceeded. 6. Surfaces have been primed, if applicable. 7. Laps in strips and transition strips have complied with minimum requirements and have

been shingled in the correct direction (or mastic has been applied on exposed edges), with no fishmouths.

8. Termination mastic has been applied on cut edges. 9. Strips and transition strips have been firmly adhered to substrate. 10. Compatible materials have been used. 11. Transitions at changes in direction and structural support at gaps have been provided. 12. Connections between assemblies (membrane and sealants) have complied with

requirements for cleanliness, preparation and priming of surfaces, structural support, integrity, and continuity of seal.

13. All penetrations have been sealed.

C. Tests: Testing to be performed will be determined by Owner's testing agency from among the following tests:

1. Qualitative Testing: Air barrier assemblies will be tested for evidence of air leakage according to ASTM E 1186, smoke pencil with pressurization or depressurization.


2. Quantitative Air Leakage Testing: Testing not to exceed the test pressure differential, positive and negative, indicated in "Performance Requirements" Article for air barrier assembly air leakage according to ASTM E 283.

D. Remove and replace deficient air barrier components and retest as specified above.

3.9 CLEANING AND PROTECTION

A. Protect air barrier system from damage during application and remainder of construction period, according to manufacturer's written instructions.

1. Protect air barrier from exposure to UV light and harmful weather exposure as required by manufacturer. Remove and replace air barrier exposed for more than 30 days.

2. Protect air barrier from contact with creosote, uncured coal-tar products, TPO, EPDM, flexible PVC membranes, and sealants not approved by air barrier manufacturer.

B. Clean spills, stains, and soiling from construction that would be exposed in the completed work using cleaning agents and procedures recommended by manufacturer of affected construction.

C. Remove masking materials after installation.


Mt. Pleasant Library 07415-1 100% Printing: 20 March 2009 CORE Group, P.C. COMPOSITE METAL WALL PANELS

SECTION 07415

PART 1 - GENERAL

COMPOSITE METAL WALL PANELS



1.2 SUMMARY

A. Section includes metal-faced composite wall panels.

1.3 PERFORMANCE REQUIREMENTS

A. Structural Performance: Provide metal-faced composite wall panel assemblies capable of withstanding the effects of the following loads and stresses within limits and under conditions indicated, based on testing according to ASTM E 330:

1. Wind Loads: Determine loads based on the following minimum design wind pressures:

a. Uniform pressure of 20 lbf/sq. ft. (957 Pa) and 30 lbf/sq. ft. (1436 Pa) on parapet and corner panels

2. Deflection Limits: Metal-faced composite wall panel assemblies shall withstand wind loads with horizontal deflections no greater than 1/175 of the span at the perimeter and 1/60 of the span anywhere in the panel of the span.

, acting inward or outward.

a. Maximum anchor deflection shall not exceed 1/16 in. (1.6 mm).

3. At 1-1/2 times design pressure, permanent deflection of framing members shall not exceed L/100 of span length, and components shall not experience failure or gross permanent distortion. a. At connection points of framing members to anchors, permanent distortion shall

not exceed 1/16 in. (1.6 mm).

B. Air/Water System Test: 1. When tested according to ASTM E 283, air infiltration must not exceed 0.06 cfm x sq. ft.

of surface area at 1.57-lbf/sq. ft. (3.0 L/s x sq. m of surface area at 75-Pa). 2. No water infiltration shall occur under a differential static pressure of 6.24 lbf/sq. ft. (300

Pa) after 15 minutes of exposure when tested according to ASTM E 331.

C. Bond Integrity: When tested for bond integrity, according to ASTM D 1781 (simulating resistance to panel delamination), there shall be no adhesive failure of the bond between the core and the skin nor cohesive failure of the core itself below the following values:


1. Peel Strength:

a. 22.5 in lb./in. (115 N mm/mm) as manufactured and after 21 days soaking in water at 70 degrees F (21 degrees C).

2. Fire Performance: a. ASTM E 84: Flame spread index shall be less than 25; smoke developed index

must be less than 450. b. ASTM D 1929: A self-ignition temperature of 650 degrees F (343.3 degrees C) or

greater. c. Requires a CC1 classification.

1.4 SUBMITTALS


B. Shop Drawings: Show fabrication and installation layouts of metal-faced composite wall panels; details of edge conditions, joints, panel profiles, corners, anchorages, attachment system, trim, flashings, closures, and accessories; and special details. Distinguish among factory-, shop-, and field-assembled work.

C. Samples: For each type of exposed finish required.

D. Coordination Drawings: Exterior elevations, drawn to scale, on which the following items are shown and coordinated with each other.

E. Product test reports.

F. Maintenance data.

G. Samples of special warranties.


A. Fire-Resistance Ratings: Where indicated, provide metal-faced composite wall panels identical to those of assemblies tested for fire resistance per ASTM E 119 by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

B. Preinstallation Conference: Conduct conference at Project site.

1.6 WARRANTY

A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace components of metal-faced composite wall panel assemblies that fail in materials or workmanship within specified warranty period.

1. Warranty Period: Two years from date of Substantial Completion.


B. Special Warranty on Panel Finishes: Manufacturer's standard form in which manufacturer agrees to repair finish or replace metal-faced composite wall panels that show evidence of deterioration of factory-applied finishes within specified warranty period.

1. Finish Warranty Period: 20 years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 PANEL PRODUCTS

A. Coil-coated sheet, ASTM B 209 (ASTM B 209M), alloy as standard with manufacturer, with temper as required to suit forming operations and structural performance required.

B. Basis-of-Design Product: Subject to compliance with requirements, provide composite metal wall panels composed of Alucobond material manufactured by Alcan Composites USA, Inc. or approved equal product as determined by Architect from one of the following: 1. Alcoa Inc. 2. ALPOLIC, Division of Mitsubishi Chemical America, Inc. 3. CENTRIA Architectural Systems. 4. Citadel Architectural Products, Inc. 5. Copper Sales, Inc.; UNA-FAB. 6. Protean Construction Products, Inc.

C. Surface: Smooth, flat finish.

D. Thickness: 0.236 in. (6 mm).

E. Weight: 1.59 lb./sq. ft (4.88 kg./sq. m).

F. Exposed Coil-Coated Finishes: 1. KYNAR 500- or HYLAR 5000-based polyvinylidene fluoride (PVDF) or fluoro ethylene

– alkyd vinyl ether (FEVE) resin in conformance with the following general requirements of AAMA 2605: a. Color: As selected by Architect from manufacturer’s full range. b. Clear coat over pretreated natural and brushed aluminum substrates.

2. Coating Thickness:

a. Color: 1.0 mil (± 0.2 mil). b. Clear: 0.50 mil (± 0.05 mil).

3. Hardness: ASTM D 3363; HB minimum using Eagle Turquoise pencil.

4. Impact:

a. Test Method: ASTM D 2794; Gardner Variable Impact Tester with 5/8-inch (15.9-mm) mandrel.

b. Coating shall withstand reverse impact of 1.5 inch-pounds (1.73 kg-cm) per mil substrate thickness.


c. Coating shall adhere tightly to metal when subjected to #600 Scotch Tape pick-off test. 1) Slight minute cracking permissible. 2) No removal of film to substrate.

5. Adhesion: a. Test Method: ASTM D 3359. b. Coating shall not pick off when subjected to an 11 in. by 11 in. by 1/16-in. (279

mm by 279 mm by 1.6 mm) grid and taped with #600 Scotch Tape.

6. Humidity Resistance: a. Test Method: ASTM D 2247. b. No formation of blisters when subject to condensing water fog at 100% relative

humidity and 100 degrees F (212 degrees C) for 4,000 hours.

7. Salt Spray Resistance: a. Test Method: ASTM B 117. b. Expose coating system to 4,000 hours using 5% sodium chloride solution. c. Corrosion creepage from scribe line shall be 1/16 inch (1.6 mm) maximum. d. Minimum blister rating of 8 within the test specimen period.

8. Weather Exposure:

a. Outdoor: 1) Ten-year exposure at 45 degree angle facing South Florida exposure. 2) Maximum color change of 5 Delta E units as calculated according to ASTM

D 2244. 3) Maximum chalk rating of 8 according to ASTM D 4212. 4) No checking, crazing or adhesion loss.

9. Chemical Resistance:

a. ASTM D 1308 using 10 percent muriatic acid for an exposure time of fifteen minutes: 1) No loss of film adhesion or visual change when viewed by the unaided eye.

b. ASTM D 1308 using 20 percent sulfuric acid for an exposure time of 18 hours: 1) No loss of film adhesion or visual change when viewed by the unaided eye.

c. AAMA 2605 using 70 percent reagent-grade nitric acid vapor for an exposure time of 30 minutes: 1) Maximum color change of 5 Delta E units as calculated according to ASTM

D 2244.

G. Panel Sealants: ASTM C 920.

2.2 PANEL FABRICATION

A. Composition: Two sheets of aluminum sandwiching a solid core of extruded thermoplastic material formed in a continuous process with no glues or adhesives between dissimilar materials. 1. Core material shall be free of voids and/or air spaces and not contain foamed insulation

material.


B. Aluminum Face Sheets: 1. Thickness: 0.0197 in. (0.50 mm), nominal. 2. Alloy: AA3000.

C. Tolerances: 1. Panel Bow: Maximum 0.8% of any 72 in. (1828 mm) panel dimension. 2. Panel lines, breaks and angles shall be sharp, true and surfaces free from warp and

buckle. 3. Maximum deviation from panel flatness shall be 1/8 inch (3 mm) in 5 feet (1524 mm) on

panel in any direction for assembled units. a. No oil-canning.

D. System Type: As indicated on Drawings.

2.3 FRAMED ALUMINUM PARTITIONS

A. Aluminum Sheet: Coil-coated sheet, ASTM B 209 (ASTM B 209M)

1. Surface: Smooth, flat finish.

, alloy as standard with manufacturer, with temper as required to suit forming operations and structural performance required.

2. Exposed Anodized Finishes:

a. Clear Anodic Finish: AAMA 611, AA-M12C22A41, Class I, 0.018 mm or thicker.

2.4 MISCELLANEOUS METAL FRAMING

A. Miscellaneous Metal Framing, General: ASTM C 645, cold-formed metallic-coated steel sheet, ASTM A 653/A 653M, G60 (Z180)

B. Subgirts: Manufacturer's standard C- or Z-shaped sections

hot-dip galvanized or coating with equivalent corrosion resistance unless otherwise indicated.

0.064-inch (1.63-mm)

C. Zee Clips:

nominal thickness.

0.079-inch (2.01-mm)

D. Base or Sill Angles and Channels:

nominal thickness.

0.079-inch (2.01-mm)

E. Hat-Shaped, Rigid Furring Channels:

nominal thickness.

1. Nominal Thickness: 0.040 inch2. Depth:

(1.02 mm) unless otherwise indicated. 1-1/2 inches

F. Cold-Rolled Furring Channels: Minimum

(38 mm) unless otherwise indicated.

1/2-inch- (13-mm-)

1. Nominal Thickness:

wide flange.

0.064 inch (1.63 mm) unless otherwise indicated.


2. Depth: 3/4 inch3. Furring Brackets: Adjustable, corrugated-edge type of steel sheet with nominal thickness

of

(19 mm) unless otherwise indicated.

0.040 inch (1.02 mm)4. Tie Wire: ASTM A 641/A 641M, Class 1 zinc coating, soft temper,

. 0.062-inch- (1.57-

mm-) diameter wire, or double strand of 0.048-inch- (1.22-mm-)

2.5 MISCELLANEOUS MATERIALS

diameter wire.

A. Aluminum Extrusions: ASTM B 221 (ASTM B 221M)

B. Fasteners: Self-tapping screws, bolts, nuts, self-locking rivets and bolts, end-welded studs, and other suitable fasteners designed to withstand design loads. Provide exposed fasteners with heads matching color of metal-faced composite wall panels by means of plastic caps or factory-applied coating. Provide EPDM, PVC, or neoprene sealing washers.

.

2.6 ACCESSORIES

A. Wall Panel Accessories: ASTM B 209. Provide components required for a complete metal-faced composite wall panel assembly including trim, copings, fasciae, mullions, sills, corner units, clips, flashings, sealants, gaskets, fillers, closure strips, and similar items. Match material and finish of metal-faced composite wall panels unless otherwise indicated.

B. Flashing and Trim: Formed from 0.030-inch- (0.76-mm-)

2.7 FABRICATION

minimum thickness, aluminum-zinc alloy-coated steel sheet prepainted with coil coating. Provide flashing and trim as required to seal against weather and to provide finished appearance. Locations include, but are not limited to, bases, drips, sills, jambs, corners, endwalls, framed openings, rakes, fasciae, parapet caps, soffits, reveals, and fillers. Finish flashing and trim with same finish system as adjacent metal-faced composite wall panels.

A. General: Fabricate and finish metal-faced composite wall panels and accessories at the factory to greatest extent possible, by manufacturer's standard procedures and processes, as necessary to fulfill indicated performance requirements demonstrated by laboratory testing. Comply with indicated profiles and with dimensional and structural requirements.

B. Field fabrication shall be allowed when necessary, but shall be kept to an absolute minimum.

C. System must not generally have any visible fasteners, telegraphing or fastening on the panel faces or any other compromise of a neat and flat appearance.

D. Fabricate panel system to dimensions, size and profile indicated on Drawings based on a design temperature of 70 degrees F (21 degrees C).

E. Fabricate panel system such that no restraints can be placed on the panel which might result in compressive skin stresses.


1. Installation detailing shall be such that the panels remain flat regardless of temperature change and at all times remain air- and watertight.

F. The finished side of the panels shall have a removable plastic film applied prior to fabrication which shall remain on the panel during fabrication, shipping and erection to protect the surface from damage.

G. Fabricate metal-faced composite wall panels in a manner that eliminates condensation on interior side of panel and with joints between panels designed to form weathertight seals.

PART 3 - EXECUTION

3.1 PREPARATION

A. Miscellaneous Framing: Install subgirts, base angles, sills, furring, and other miscellaneous wall panel support members and anchorage according to ASTM C 754 and metal-faced composite wall panel manufacturer's written instructions.

3.2 METAL-FACED COMPOSITE WALL PANEL INSTALLATION

A. Attachment System Installation, General: Install attachment system required to support metal-faced composite wall panels and to provide a complete weathertight wall system, including subgirts, perimeter extrusions, tracks, drainage channels, panel clips, and anchor channels.

1. Include attachment to supports, panel-to-panel joinery, panel-to-dissimilar-material joinery, and panel-system joint seals.

2. Do not begin installation until weather barrier and flashings that will be concealed by composite panels are installed.

B. Clip Installation: Attach panel clips to supports at each metal-faced composite wall panel joint at locations, spacings, and with fasteners recommended by manufacturer. Attach routed-and-returned flanges of wall panels to panel clips with manufacturer's standard fasteners.

1. Seal horizontal and vertical joints between adjacent panels with sealant backing and sealant. Install sealant backing and sealant according to requirements specified in Division 7 Section "Joint Sealants."

C. Track-Support Installation: Provide manufacturer's standard horizontal and vertical tracks that provide support and complete secondary drainage system, draining to the exterior at horizontal joints. Install support system at locations, spacings, and with fasteners recommended by manufacturer. Attach panels to wall by interlocking tracks with perimeter extrusions attached to wall panels. Fully engage integral gaskets and leave horizontal and vertical joints with open reveal.

1. Attach routed-and-returned flanges of wall panels to perimeter extrusions with manufacturer's standard fasteners.

2. Attach flush wall panels to perimeter extrusions by engaging panel edges and by attaching with manufacturer's standard structural silicone adhesive.


3. Install wall panels to allow individual panels to "free float" and be installed and removed without disturbing adjacent panels.

4. Do not apply sealants to joints unless otherwise indicated on Drawings.

D. Subgirt-and-Spline Installation: Provide manufacturer's standard subgirts and splines that provide support and complete secondary drainage system, draining to the exterior at horizontal joints. Install support system at locations, spacings, and with fasteners recommended by manufacturer. Attach wall panels by interlocking perimeter extrusions attached to routed-and-returned flanges of wall panels with subgirts and splines. Fully engage integral subgirt-and-spline gaskets and leave horizontal and vertical joints with open reveal.

1. Install wall panels to allow individual panels to "free float" and be installed and removed without disturbing adjacent panels.

2. Do not apply sealants to joints unless otherwise indicated on Drawings.

3.3 ACCESSORY INSTALLATION

A. General: Install accessories with positive anchorage to building and weathertight mounting and provide for thermal expansion. Coordinate installation with flashings and other components.

1. Install components required for a complete metal-faced composite wall panel assembly including trim, copings, corners, seam covers, flashings, sealants, gaskets, fillers, closure strips, and similar items.

B. Flashing and Trim: Comply with performance requirements, manufacturer's written installation instructions, and SMACNA's "Architectural Sheet Metal Manual." Provide concealed fasteners where possible, and set units true to line and level as indicated. Install work with laps, joints, and seams that will be permanently watertight and weather resistant.

3.4 ERECTION TOLERANCES

A. Installation Tolerances: Shim and align metal-faced composite wall panel units within installed tolerance of 1/4 inch in 20 feet (6 mm in 6 m), nonaccumulative, on level, plumb, and location lines as indicated and within 1/8-inch (3-mm)

3.5 CLEANING

offset of adjoining faces and of alignment of matching profiles.

A. Remove temporary protective coverings and strippable films, if any, as metal-faced composite wall panels are installed unless otherwise indicated in manufacturer's written installation instructions. On completion of metal-faced composite wall panel installation, clean finished surfaces as recommended by panel manufacturer. Maintain in a clean condition during construction.

B. After metal-faced composite wall panel installation, clear weep holes and drainage channels of obstructions, dirt, and sealant.


Mt. Pleasant Library 075512-1 100% Printing: 20 March 2009 CORE Group, P.C. SBS-MODIFIED BITUMINOUS MEMBRANE ROOFING

SECTION 07551

PART 1 - GENERAL

STYRENE-BUTADIENE-STYRENE (SBS) MODIFIED BITUMINOUS MEMBRANE ROOFING



1.2 SUMMARY

A. Section Includes: 1. Styrene-butadiene-styrene (SBS) modified bituminous membrane roofing. 2. Roofing coating.

1.3 DEFINITIONS

A. Hot Roofing Asphalt: Roofing asphalt heated to its equiviscous temperature, the temperature at which its viscosity is 125 centipoise for mop-applied roofing asphalt and 75 centipoise for mechanical spreader-applied roofing asphalt, within a range of plus or minus 25 deg F (14 deg C)

1.4 PERFORMANCE REQUIREMENTS

, measured at the mop cart or mechanical spreader immediately before application.

A. Roofing System Design: Provide membrane roofing system that is identical to systems that have been successfully tested by a qualified testing and inspecting agency to resist uplift pressure calculated according to ASCE/SEI 7.

B. Energy Performance: Provide roofing system with initial Solar Reflectance Index not less than 78 when calculated according to ASTM E 1980 based on testing identical products by a qualified testing agency.

C. Energy Performance: Provide roofing system that is listed on DOE's ENERGY STAR "Roof Products Qualified Product List" for low-slope roof products.

D. Energy Performance: Provide roofing system with initial Solar Reflectance not less than 0.70 and Thermal Emittance not less than 0.75 when tested according to Cool Roof Rating Council's CRRC-1.


1.5 SUBMITTALS


B. LEED Submittals:

1. Product Test Reports for Credit SS 7.2: For roof materials, indicating that roof materials comply with Solar Reflectance Index requirement.

2. Product Data for Credit EQ 4.1: For adhesives and sealants, including printed statement of VOC content.

C. Shop Drawings: Include plans, elevations, sections, details, and attachments to other work.

D. Samples for Verification: For membrane cap sheet and flashing sheet, of color specified.

E. Research/evaluation reports.

F. Maintenance data.


A. Installer Qualifications: A qualified firm that is approved, authorized, or licensed by membrane roofing system manufacturer to install manufacturer's product and that is eligible to receive manufacturer's special warranty.

B. Source Limitations: Obtain components for membrane roofing system from same manufacturer as membrane roofing.

C. Exterior Fire-Test Exposure: ASTM E 108, Class A; for application and roof slopes indicated, as determined by testing identical membrane roofing materials by a qualified testing agency.

D. Preinstallation Roofing Conference: Conduct conference at Project site.

1.7 WARRANTY

A. Special Warranty: Manufacturer's standard or customized form, without monetary limitation, in which manufacturer agrees to repair or replace components of membrane roofing system that fail in materials or workmanship within specified warranty period.

1. Warranty Period: 15 years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 SBS-MODIFIED ASPHALT-SHEET MATERIALS

A. SBS-Modified Bituminous Membrane Roofing:


1. Basis-of-Design Product: Subject to compliance with requirements, provide SBS-modified bituminous membrane moofing products manufactured by Henry Company or approved equal products as determined by Architect from one of the following:

a. Bitec, Inc. b. CertainTeed Corp. c. Consolidated Fiber Glass Products Co. d. Danoza Caribbean Inc. e. Ecology Commercial and Industrial Roofing Systems. f. Firestone Building Products. g. GAF Materials Corporation. h. Garland Company, Inc. (The). i. Henry Company. j. Hickman, W. P. Systems, Inc. k. Honeywell International Inc. l. IKO. m. Johns Manville. n. Koppers Inc. o. Malarkey Roofing Company. p. MBTechnology. q. Polyglass USA, Inc. r. Siplast, Inc. s. Soprema. t. TAMKO Building Products, Inc. u. Tremco Incorporated. v. U.S. Intec; a division of BMCA.

B. Roofing Membrane Sheet: ASTM D 6164, Grade S, Type I or II, SBS-modified asphalt sheet (reinforced with polyester fabric); smooth surfaced; suitable for application method specified.

C. Smooth-Surfaced Roofing Membrane Cap Sheet: ASTM D 6164, Grade S, Type I or II, SBS-modified asphalt sheet (reinforced with polyester fabric); smooth surfaced; suitable for application method specified.

2.2 BASE-SHEET MATERIALS

A. Sheathing Paper: Red-rosin type, minimum 3 lb/100 sq. ft. (0.16 kg/sq. m)

B. Base Sheet: ASTM D 4601, Type I, nonperforated, asphalt-impregnated and -coated, glass-fiber sheet, dusted with fine mineral surfacing on both sides.

.

2.3 BASE-PLY SHEET MATERIALS

A. Glass-Fiber Base-Ply Sheet: ASTM D 2178, Type IV, asphalt-impregnated, glass-fiber felt.


2.4 BASE FLASHING SHEET MATERIALS

A. Backer Sheet: ASTM D 4601, Type I, asphalt-impregnated and -coated, glass-fiber sheet, dusted with fine mineral surfacing on both sides.

B. Smooth-Surfaced Flashing Sheet: ASTM D 6222, Grade S, Type I or II, SBS-modified asphalt sheet (reinforced with polyester fabric); smooth surfaced; suitable for application method specified.

2.5 ROOFING COATING

A. Basis-of-Design Product: Subject to compliance with requirements, provide Model No.: HE687 Enviro White Premium White Roof Coating manufactured by Henry Company or approved equal product as determined by Architect.

B. Description: Premium, high solids, white elastomeric roof coating formulated with acrylic polymers, resins, fillers and titanium dioxide pigments.

C. Physical Properties: 1. Brookfield Viscosity: ASTM D 2196; 17,000-21,000 cPs, 6D/20 rpm. 2. Initial Elongation: ASTM D 2370; 150% minimum. 3. Fungal Resistance: ASTM G 21; zero. 4. Low Temperature Flexibility: ASTM D 522; Pass 0 degrees F (-18 degrees C) at 1/2 in.

(13 mm). 5. Maximum VOC: 25 g/L. 6. Maximum VOC: 0.21 lb./gal. 7. Initial Solar Reflectance: ASTM C 1549; 0.88. 8. Thermal Emittance: ASTM C 1371; 0.90. 9. Initial Film Tensile Strength: ASTM D 2370; 160 lbf/sq. ft. (7692.3 Pa) minimum. 10. Water Absorption: ASTM D 471; 12% maximum. 11. Water Vapor Permeance: ASTM D 96; 13 perms (743 ng/Pa x s x sq. m) maximum.

2.6 AUXILIARY ROOFING MEMBRANE MATERIALS

A. General: Auxiliary materials recommended by roofing system manufacturer for intended use and compatible with roofing membrane.

1. Liquid-type auxiliary materials shall comply with VOC limits of authorities having jurisdiction.

2. Adhesives and sealants that are not on the exterior side of weather barrier shall comply with the following limits for VOC content when calculated according to 40 CFR 59, Subpart D (EPA Method 24):

a. Plastic Foam Adhesives: 50 g/L. b. Gypsum Board and Panel Adhesives: 50 g/L. c. Multipurpose Construction Adhesives: 70 g/L. d. Fiberglass Adhesives: 80 g/L. e. Contact Adhesive: 80 g/L.


f. Other Adhesives: 250 g/L. g. Nonmembrane Roof Sealants: 300 g/L. h. Sealant Primers for Nonporous Substrates: 250 g/L. i. Sealant Primers for Porous Substrates: 775 g/L.

B. Asphalt Primer: ASTM D 41.

C. Roofing Asphalt: ASTM D 312, Type III or IV as recommended by roofing system manufacturer for application.

D. Asphalt Roofing Cement: ASTM D 4586, asbestos free, of consistency required by roofing system manufacturer for application.

E. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance provisions in FM Approvals 4470, designed for fastening roofing membrane components to substrate; tested by manufacturer for required pullout strength, and acceptable to roofing system manufacturer.

2.7 SUBSTRATE BOARDS

A. Substrate Board: ASTM C 1177/C 1177M, glass-mat, water-resistant gypsum substrate, Type X, 5/8 inch (16 mm)

1. Products: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following:

thick, factory primed.

a. Georgia-Pacific Corporation; Dens Deck DuraGuard.

B. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance provisions in FM Approvals 4470, designed for fastening substrate board to roof deck.

2.8 ROOF INSULATION

A. Extruded-Polystyrene Board Insulation: ASTM C 578, Type X, 1.3-lb/cu. ft. (21-kg/cu. m)

B. Tapered Insulation: Provide factory-tapered insulation boards fabricated to slope of

minimum density, square edged.

1/4 inch per 12 inches (1:48)

C. Provide preformed saddles, crickets, tapered edge strips, and other insulation shapes where indicated for sloping to drain. Fabricate to slopes indicated.

unless otherwise indicated.

2.9 INSULATION ACCESSORIES

A. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance provisions in FM Approvals 4470, designed for fastening roof insulation and cover boards to substrate, and acceptable to roofing system manufacturer.


B. Cold-Applied Adhesive: Insulation manufacturer's recommended cold-applied adhesive formulated to attach roof insulation to substrate or to another insulation layer.

C. Insulation Cant Strips: ASTM C 728, perlite insulation board.

D. Wood Nailer Strips: Comply with requirements in Division 6 Section "Miscellaneous Carpentry."

E. Tapered Edge Strips: ASTM C 728, perlite insulation board.

F. Cover Board: ASTM C 1177/C 1177M, glass-mat, water-resistant gypsum substrate, 5/8 inch (16 mm)


] thick, factory primed.

a. Georgia-Pacific Corporation; Dens Deck or Dens Deck Prime.

2.10 WALKWAYS 1. Walkway Pads: Precast Pavers – Bases of design: Hanover Pavers

PART 3 - EXECUTION

3.1 SUBSTRATE BOARD INSTALLATION

A. Install substrate board with long joints in continuous straight lines, perpendicular to roof slopes with end joints staggered between rows. Tightly butt substrate boards together.

1. Fasten substrate board to top flanges of steel deck to resist uplift pressure at corners, perimeter, and field of roof according to membrane roofing system manufacturers' written instructions.


A. Comply with roofing system manufacturer's written instructions for installing roof insulation.

B. Nailer Strips: Mechanically fasten 4-inch nominal- (89-mm actual-)

1.

width wood nailer strips of same thickness as insulation perpendicular to sloped roof deck at the following spacing:

16 feet (4.88 m) apart for roof slopes steeper than 1 inch per 12 inches (1:12) but less than 3 inches per 12 inches (3:12)

2. .

48 inches (1220 mm) apart for roof slopes steeper than 3 inches per 12 inches (3:12)

C. Insulation Cant Strips: Install and secure preformed 45-degree insulation cant strips at junctures of roofing membrane system with vertical surfaces or angle changes more than 45 degrees.

.

D. Install tapered insulation under area of roofing to conform to slopes indicated.

E. Install insulation under area of roofing to achieve required thickness. Where overall insulation thickness is 2.7 inches (68 mm) or more, install two or more layers with joints of each


succeeding layer staggered from joints of previous layer a minimum of 6 inches (150 mm)

F. Install tapered edge strips at perimeter edges of roof that do not terminate at vertical surfaces.

in each direction.

G. Adhered Insulation: Install each layer of insulation and adhere to substrate as follows:

1. Prime surface of concrete deck with asphalt primer at rate of 3/4 gal./100 sq. ft. (0.3 L/sq. m)

2. Set each layer of insulation in a solid mopping of hot roofing asphalt. and allow primer to dry.

3. Set each layer of insulation in cold-applied insulation adhesive.

H. Mechanically Fastened Insulation: Install each layer of insulation and secure to deck using mechanical fasteners specifically designed and sized for fastening specified board-type roof insulation to deck type.

I. Mechanically Fastened and Adhered Insulation: Install first layer of insulation to deck using mechanical fasteners specifically designed and sized for fastening specified board-type roof insulation to deck type.

1. Set each subsequent layer of insulation in a solid mopping of hot roofing asphalt. 2. Set each subsequent layer of insulation in cold-applied insulation adhesive.

J. Install cover boards over insulation with long joints in continuous straight lines with end joints staggered between rows. Offset joints a minimum of 6 inches (150 mm)

3.3 ROOFING MEMBRANE INSTALLATION, GENERAL

in each direction from joints of insulation below. Loosely butt cover boards together and fasten to roof deck.

A. Install roofing membrane system according to roofing system manufacturer's written instructions and applicable recommendations in ARMA/NRCA's "Quality Control Guidelines for the Application of Polymer Modified Bitumen Roofing" and as follows:

1. Deck Type: I (insulated). 2. Adhering Method: T (torched). 3. Base Sheet: One, installed over sheathing paper. 4. Number of Glass-Fiber Base-Ply Sheets: One. 5. Number of SBS-Modified Asphalt Sheets: Two. 6. Surfacing Type: S (smooth).

B. Where roof slope exceeds 1/2 inch per 12 inches (1:24)

1. Backnail roofing membrane sheets to nailer strips according to roofing system manufacturer's written instructions.

, install roofing membrane sheets parallel with slope.

C. Coordinate installation of roofing system so insulation and other components of the roofing membrane system not permanently exposed are not subjected to precipitation or left uncovered at the end of the workday or when rain is forecast.


D. Substrate-Joint Penetrations: Prevent roofing asphalt and adhesives from penetrating substrate joints, entering building, or damaging roofing system components or adjacent building construction.

3.4 BASE-SHEET INSTALLATION

A. Loosely lay one course of sheathing paper, lapping edges and ends a minimum of 2 inches (50 mm) and 6 inches (150 mm)

B. Install lapped base-sheet course, extending sheet over and terminating beyond cants. Attach base sheet as follows:

, respectively.

1. Mechanically fasten to substrate. 2. Spot- or strip-mop to substrate with hot roofing asphalt. 3. Adhere to substrate in a solid mopping of hot roofing asphalt.

3.5 BASE-PLY SHEET INSTALLATION

A. Install glass-fiber base-ply sheets according to roofing system manufacturer's written instructions starting at low point of roofing system. Align glass-fiber base-ply sheets without stretching. Extend sheets over and terminate beyond cants.

1. Embed glass-fiber base-ply sheet in a continuous void-free mopping of hot roofing asphalt to form a uniform membrane without glass-fiber base-ply sheets touching.

3.6 SBS-MODIFIED BITUMINOUS MEMBRANE INSTALLATION

A. Install modified bituminous roofing membrane sheet and cap sheet according to roofing manufacturer's written instructions, starting at low point of roofing system. Extend roofing membrane sheets over and terminate beyond cants.

B. Laps: Accurately align roofing membrane sheets, without stretching, and maintain uniform side and end laps. Stagger end laps. Completely bond and seal laps, leaving no voids.

1. Repair tears and voids in laps and lapped seams not completely sealed.

C. Install roofing membrane sheets so side and end laps shed water.

3.7 FLASHING AND STRIPPING INSTALLATION

A. Install base flashing over cant strips and other sloped and vertical surfaces, at roof edges, and at penetrations through roof; secure to substrates according to roofing system manufacturer's written instructions.

B. Extend base flashing up walls or parapets a minimum of 8 inches (200 mm) above roofing membrane and 4 inches (100 mm)

C. Mechanically fasten top of base flashing securely at terminations and perimeter of roofing.

onto field of roofing membrane.


D. Install roofing membrane cap-sheet stripping where metal flanges and edgings are set on membrane roofing according to roofing system manufacturer's written instructions.

3.8 COATING INSTALLATION

A. Apply coating to roofing membrane and base flashings according to manufacturer's written instructions, by spray, roller, or other suitable application method to provide a dry film thickness of not less than 20 mils (0.5 mm)

3.9 WALKWAY INSTALLATION

.

A. Walkway Pads: Install walkway pads in cold-applied adhesive, using units of size indicated or, if not indicated, of manufacturer's standard size according to walkway pad manufacturer's written instructions.

B. Walkway Strips: Install walkway cap sheet strips over roofing membrane using same application method as used for roofing membrane cap sheet.


Mt. Pleasant Library 07620-1 75% Printing: 20 February 2009 CORE Group, P.C. SHEET METAL FLASHING AND TRIM

SECTION 07620

PART 1 - GENERAL

SHEET METAL FLASHING AND TRIM



1.2 SUMMARY

A. Section Includes: 1. Copings. 2. Roof-edge flashing. 3. Manufactured reglets and counterflashing. 4. Formed roof drainage sheet metal fabrications. 5. Formed low-slope roof sheet metal fabrications. 6. Formed wall sheet metal fabrications.

1.3 SUBMITTALS


B. Shop Drawings: Show installation layouts of sheet metal flashing and trim, including plans, elevations, expansion-joint locations, and keyed details. Distinguish between shop- and field-assembled work.

1. Include details for forming, joining, supporting, and securing sheet metal flashing and trim, including pattern of seams, termination points, fixed points, expansion joints, expansion-joint covers, edge conditions, special conditions, and connections to adjoining work.

C. Samples: For each exposed product and for each finish specified.

D. Maintenance data.

E. Warranty: Sample of special warranty.


A. Sheet Metal Flashing and Trim Standard: Comply with SMACNA's "Architectural Sheet Metal Manual" unless more stringent requirements are specified or shown on Drawings.


B. Mockups: Build mockups to verify selections made under sample submittals and to demonstrate aesthetic effects and set quality standards for fabrication and installation.

1. Build mockup of typical roof eave, including fascia and fascia trim, approximately 10 feet (3.0 m)

C. Preinstallation Conference: Conduct conference at Project site.

long, including supporting construction cleats, seams, attachments and accessories.

1.5 WARRANTY

A. Special Warranty on Finishes: Manufacturer's standard form in which manufacturer agrees to repair finish or replace sheet metal flashing and trim that shows evidence of deterioration of factory-applied finishes within 20 years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 SHEET METALS

A. General: Protect mechanical and other finishes on exposed surfaces from damage by applying a strippable, temporary protective film before shipping.

B. Aluminum Sheet: ASTM B 209 (ASTM B 209M)

1. Exposed Coil-Coated Finishes:

, alloy as standard with manufacturer for finish required, with temper as required to suit forming operations and performance required.

a. Two-Coat Fluoropolymer: AAMA 620. Fluoropolymer finish containing not less than 70 percent PVDF resin by weight in color coat.

2. Color: As selected by Architect from manufacturer's full range.

2.2 UNDERLAYMENT MATERIALS

A. Polyethylene Sheet: 6-mil- (0.15-mm-)

B. Felt: ASTM D 226, Type II (No. 30), asphalt-saturated organic felt, nonperforated.

thick polyethylene sheet complying with ASTM D 4397.

C. Self-Adhering, High-Temperature Sheet: Minimum 30 to 40 mils (0.76 to 1.0 mm)

1. Thermal Stability: ASTM D 1970; stable after testing at

thick, consisting of slip-resisting polyethylene-film top surface laminated to layer of butyl or SBS-modified asphalt adhesive, with release-paper backing; cold applied. Provide primer when recommended by underlayment manufacturer.

240 deg F (116 deg C)2. Low-Temperature Flexibility: ASTM D 1970; passes after testing at minus

. 20 deg F (29

deg C).


D. Slip Sheet: Building paper, 3-lb/100 sq. ft. (0.16-kg/sq. m)


minimum, rosin sized.

A. General: Provide materials and types of fasteners, solder, welding rods, protective coatings, separators, sealants, and other miscellaneous items as required for complete sheet metal flashing and trim installation and recommended by manufacturer of primary sheet metal or manufactured item unless otherwise indicated.

B. Fasteners: Wood screws, annular threaded nails, self-tapping screws, self-locking rivets and bolts, and other suitable fasteners designed to withstand design loads and recommended by manufacturer of primary sheet metal or manufactured item.

1. General: Blind fasteners or self-drilling screws, gasketed, with hex-washer head.

a. Exposed Fasteners: Heads matching color of sheet metal using plastic caps or factory-applied coating.

b. Blind Fasteners: High-strength aluminum or stainless-steel rivets suitable for metal being fastened.

c. Spikes and Ferrules: Same material as gutter; with spike with ferrule matching internal gutter width.

2. Fasteners for Aluminum Sheet: Aluminum or Series 300 stainless steel.

C. Sealant Tape: Pressure-sensitive, 100 percent solids, gray polyisobutylene compound sealant tape with release-paper backing. Provide permanently elastic, nonsag, nontoxic, nonstaining tape 1/2 inch (13 mm) wide and 1/8 inch (3 mm)

D. Elastomeric Sealant: ASTM C 920, elastomeric polymer sealant; low modulus; of type, grade, class, and use classifications required to seal joints in sheet metal flashing and trim and remain watertight.

thick.

E. Butyl Sealant: ASTM C 1311, single-component, solvent-release butyl rubber sealant; polyisobutylene plasticized; heavy bodied for hooked-type expansion joints with limited movement.

F. Epoxy Seam Sealer: Two-part, noncorrosive, aluminum seam-cementing compound, recommended by aluminum manufacturer for exterior nonmoving joints, including riveted joints.

G. Bituminous Coating: Cold-applied asphalt emulsion complying with ASTM D 1187.

2.4 FABRICATION, GENERAL

A. General: Custom fabricate sheet metal flashing and trim to comply with recommendations in SMACNA's "Architectural Sheet Metal Manual" that apply to design, dimensions, geometry, metal thickness, and other characteristics of item indicated. Fabricate items at the shop to greatest extent possible.


1. Obtain field measurements for accurate fit before shop fabrication. 2. Form sheet metal flashing and trim without excessive oil canning, buckling, and tool

marks and true to line and levels indicated, with exposed edges folded back to form hems.

3. Conceal fasteners and expansion provisions where possible. Exposed fasteners are not allowed on faces exposed to view.

B. Sealed Joints: Form nonexpansion but movable joints in metal to accommodate elastomeric sealant.

C. Expansion Provisions: Where lapped expansion provisions cannot be used, form expansion joints of intermeshing hooked flanges, not less than 1 inch (25 mm)

D. Fabricate cleats and attachment devices from same material as accessory being anchored or from compatible, noncorrosive metal.

deep, filled with butyl sealant concealed within joints.

E. Seams: Fabricate nonmoving seams with flat-lock seams. Tin edges to be seamed, form seams, and solder.

F. Seams: Fabricate nonmoving seams with flat-lock seams. Form seams and seal with elastomeric sealant unless otherwise recommended by sealant manufacturer for intended use. Rivet joints where necessary for strength.

G. Seams for Aluminum: Fabricate nonmoving seams with flat-lock seams. Form seams and seal with epoxy seam sealer. Rivet joints where necessary for strength.

2.5 COPINGS

A. Copings: Manufactured coping system consisting of formed-metal coping cap in section lengths not exceeding 12 feet (3.6 m),

concealed anchorage; corner units, end cap units, and concealed splice plates with same finish as coping caps.


a. Architectural Products Company. b. ATAS International, Inc. c. Castle Metal Products. d. Cheney Flashing Company. e. Hickman Company, W. P. f. Johns Manville. g. Merchant & Evans, Inc. h. Metal-Era, Inc. i. Metal-Fab Manufacturing, LLC. j. MM Systems Corporation. k. National Sheet Metal Systems, Inc. l. Perimeter Systems; a division of Southern Aluminum Finishing Company, Inc. m. Petersen Aluminum Corporation.


2. Coping-Cap Material: Formed aluminum, minimum 0.050 inch (1.27 mm)

a. Finish: Color anodic.

or as required to meet performance requirements.

b. Color: Match Architect's sample.

3. Corners: Factory mitered and continuously welded. 4. Coping-Cap Attachment Method: Snap-on, fabricated from coping-cap material. 5. Snap-on-Coping Anchor Plates: Concealed, galvanized-steel sheet, 12 inches (300 mm)

6. Face Leg Cleats: Concealed, continuous stainless steel.

wide, with integral cleats.

2.6 ROOF-EDGE FLASHINGS

A. Canted Roof-Edge Fascia and Gravel Stop: Manufactured, two-piece, roof-edge fascia consisting of snap-on metal fascia cover in section lengths not exceeding 12 feet (3.6 m) and a continuous formed galvanized-steel sheet cant, 0.028 inch (0.71 mm)

thick, minimum, with extended vertical leg terminating in a drip-edge cleat. Provide matching corner units.


a. Architectural Products Company. b. ATAS International, Inc. c. Castle Metal Products. d. Cheney Flashing Company. e. Hickman Company, W. P. f. Johns Manville. g. Merchant & Evans, Inc. h. Metal-Era, Inc. i. Metal-Fab Manufacturing, LLC. j. MM Systems Corporation. k. National Sheet Metal Systems, Inc. l. Petersen Aluminum Corporation.

2. Fascia Cover: Fabricated from the following exposed metal:

a. Formed Aluminum: Minimum 0.050 inch (1.27 mm)

3. Corners: Factory mitered and continuously welded.


4. Splice Plates: Concealed, of same material, finish, and shape as fascia cover.

B. Roof-Edge Fascia: Manufactured, two-piece, roof-edge fascia consisting of snap-on metal fascia cover in section lengths not exceeding 12 feet (3.6 m)

and a continuous formed- or extruded-aluminum anchor bar with integral drip-edge cleat to engage fascia cover. Provide matching corner units.



a. Hickman Company, W. P. b. Johns Manville. c. Metal-Era, Inc. d. Metal-Fab Manufacturing, LLC. e. National Sheet Metal Systems, Inc. f. Perimeter Systems; a division of Southern Aluminum Finishing Company, Inc.

2. Fascia Cover: Fabricated from the following exposed metal:

a. Formed Aluminum: Minimum 0.050 inch (1.27 mm)

3. Corners: Factory mitered and continuously welded.


4. Splice Plates: Concealed, of same material, finish, and shape as fascia cover.

2.7 REGLETS AND COUNTERFLASHING


1. Castle Metal Products. 2. Cheney Flashing Company. 3. Fry Reglet Corporation. 4. Heckmann Building Products Inc. 5. Hickman Company, W. P. 6. Keystone Flashing Company, Inc. 7. Metal-Era, Inc. 8. Metal-Fab Manufacturing, LLC. 9. MM Systems Corporation. 10. National Sheet Metal Systems, Inc.

B. Reglets: Manufactured units formed to provide secure interlocking of separate reglet and counterflashing pieces, from the following exposed metal: 1. Formed Aluminum: 0.050 inch (1.27 mm)2. Corners: Factory mitered and continuously welded.

thick.

3. Surface-Mounted Type: Provide reglets with slotted holes for fastening to substrate, with neoprene or other suitable weatherproofing washers, and with channel for sealant at top edge.

C. Counterflashings: Manufactured units of heights to overlap top edges of base flashings by 4 inches (100 mm) and in lengths not exceeding 12 feet (3.6 m)

designed to snap into reglets or through-wall-flashing receiver and compress against base flashings with joints lapped, from the following exposed metal:

1. Formed Aluminum: 0.032 inch (0.81 mm)

D. Accessories:

thick.


1. Flexible-Flashing Retainer: Provide resilient plastic or rubber accessory to secure flexible flashing in reglet where clearance does not permit use of standard metal counterflashing or where reglet is provided separate from metal counterflashing.

2. Counterflashing Wind-Restraint Clips: Provide clips to be installed before counterflashing to prevent wind uplift of counterflashing lower edge.

E. Aluminum Finish: Mill Three-coat fluoropolymer.

1. Color: As selected by Architect from manufacturer's full range.

2.8 ROOF DRAINAGE SHEET METAL FABRICATIONS

A. Built-in Gutters: Fabricate to cross section indicated, with riveted and soldered joints, complete with end pieces, outlet tubes, and other special accessories as required. Fabricate in minimum 96-inch- (2400-mm-)

1. Accessories: Continuous removable leaf screen with sheet metal frame and hardware cloth screen.

long sections. Fabricate expansion joints and accessories from same metal as gutters unless otherwise indicated.

2. Fabricate from the following materials: a. Aluminum: 0.040 inch (1.02 mm)

2.9 LOW-SLOPE ROOF SHEET METAL FABRICATIONS

thick.

A. Base Flashing: Fabricate from the following materials: 1. Aluminum: 0.040 inch (1.02 mm)

B. Roof-Penetration Flashing: Fabricate from the following materials:

thick.

1. Stainless Steel: 0.019 inch (0.48 mm)

C. Roof-Drain Flashing: Fabricate from the following materials:

thick.


2.10 WALL SHEET METAL FABRICATIONS

thick.

A. Through-Wall Flashing: Fabricate continuous flashings in minimum 96-inch- (2400-mm-) long, but not exceeding 12-foot- (3.6-m-) long, sections, under copings, at shelf angles, and where indicated. Fabricate discontinuous lintel, sill, and similar flashings to extend 6 inches (150 mm) beyond each side of wall openings. Form with 2-inch- (50-mm-)

high, end dams where flashing is discontinuous. Fabricate from the following materials:


B. Wall Expansion-Joint Cover: Fabricate from the following materials:

thick.


1. Aluminum: 0.040 inch (1.02 mm)

PART 3 - EXECUTION

thick.

3.1 UNDERLAYMENT INSTALLATION

A. Polyethylene Sheet: Install polyethylene sheet with adhesive for anchorage. Apply in shingle fashion to shed water, with lapped and taped joints of not less than 2 inches (50 mm)

B. Felt Underlayment: Install felt underlayment with adhesive for temporary anchorage. Apply in shingle fashion to shed water, with lapped joints of not less than

.

2 inches (50 mm)

C. Self-Adhering Sheet Underlayment: Install self-adhering sheet underlayment, wrinkle free. Comply with temperature restrictions of underlayment manufacturer for installation; use primer rather than nails for installing underlayment at low temperatures. Apply in shingle fashion to shed water, with end laps of not less than

.

6 inches (150 mm) staggered 24 inches (600 mm) between courses. Overlap side edges not less than 3-1/2 inches (90 mm)

3.2 INSTALLATION, GENERAL

. Roll laps with roller. Cover underlayment within 14 days.

A. General: Anchor sheet metal flashing and trim and other components of the Work securely in place, with provisions for thermal and structural movement so that completed sheet metal flashing and trim shall not rattle, leak, or loosen, and shall remain watertight. Use fasteners, solder, welding rods, protective coatings, separators, sealants, and other miscellaneous items as required to complete sheet metal flashing and trim system.

1. Install sheet metal flashing and trim true to line and levels indicated. Provide uniform, neat seams with minimum exposure of solder, welds, and sealant.

2. Install sheet metal flashing and trim to fit substrates and to result in watertight performance. Verify shapes and dimensions of surfaces to be covered before fabricating sheet metal.

3. Space cleats not more than 12 inches (300 mm)

4. Install exposed sheet metal flashing and trim without excessive oil canning, buckling, and tool marks.

apart. Anchor each cleat with two fasteners. Bend tabs over fasteners.

5. Install sealant tape where indicated. 6. Torch cutting of sheet metal flashing and trim is not permitted.

B. Metal Protection: Where dissimilar metals will contact each other or corrosive substrates, protect against galvanic action by painting contact surfaces with bituminous coating or by other permanent separation as recommended by SMACNA.

1. Coat back side of uncoated aluminum and stainless-steel sheet metal flashing and trim with bituminous coating where flashing and trim will contact wood, ferrous metal, or cementitious construction.


2. Underlayment: Where installing metal flashing directly on cementitious or wood substrates, install a course of felt underlayment and cover with a slip sheet or install a course of polyethylene sheet.

C. Expansion Provisions: Provide for thermal expansion of exposed flashing and trim. Space movement joints at a maximum of 10 feet (3 m) with no joints allowed within 24 inches (600 mm) of corner or intersection. Where lapped expansion provisions cannot be used or would not be sufficiently watertight, form expansion joints of intermeshing hooked flanges, not less than 1 inch (25 mm)

D. Fastener Sizes: Use fasteners of sizes that will penetrate metal decking not less than recommended by fastener manufacturer to achieve maximum pull-out resistance.

deep, filled with sealant concealed within joints.

E. Seal joints as shown and as required for watertight construction.

F. Rivets: Rivet joints in uncoated aluminum where indicated and where necessary for strength.

3.3 COPING INSTALLATION

A. Install cleats, anchor plates, and other anchoring and attachment accessories and devices with concealed fasteners.

B. Anchor copings to meet performance requirements.

1. Interlock face and back leg drip edges of snap-on coping cap into cleated anchor plates anchored to substrate at manufacturer's required spacing that meets performance requirements unless otherwise indicated.

2. Interlock face leg drip edge into continuous cleat anchored to substrate at manufacturer's required spacing that meets performance requirements unless otherwise indicated. Anchor back leg of coping with screw fasteners and elastomeric washers at manufacturer's required spacing that meets performance requirements unless otherwise indicated.

3.4 ROOF-EDGE FLASHING INSTALLATION

A. Install cleats, cants, and other anchoring and attachment accessories and devices with concealed fasteners.

B. Anchor roof edgings with manufacturer's required devices, fasteners, and fastener spacing to meet performance requirements.

3.5 REGLET AND COUNTERFLASHING INSTALLATION

A. Surface-Mounted Reglets: Install reglets to receive flashings where flashing without embedded reglets is indicated on Drawings. Install at height so that inserted counterflashings overlap 4 inches (100 mm)

B. Counterflashings: Insert counterflashings into reglets or other indicated receivers; ensure that counterflashings overlap

over top edge of base flashings.

4 inches (100 mm) over top edge of base flashings. Lap


counterflashing joints a minimum of 4 inches (100 mm)

3.6 ROOF DRAINAGE SYSTEM INSTALLATION

and bed with sealant. Fit counterflashings tightly to base flashings.

A. General: Install sheet metal roof drainage items to produce complete roof drainage system according to SMACNA recommendations and as indicated. Coordinate installation of roof perimeter flashing with installation of roof drainage system.

B. Built-in Gutters: Join sections with riveted and soldered or lapped joints sealed with sealant. Provide for thermal expansion. Slope to downspouts. Provide end closures and seal watertight with sealant.

1. Install felt underlayment layer in built-in gutter trough and extend to drip edge at eaves and under felt underlayment on roof sheathing. Lap sides a minimum of 2 inches (50 mm) over underlying course. Lap ends a minimum of 4 inches (100 mm). Stagger end laps between succeeding courses at least 72 inches (1830 mm)

2. Install gutter with expansion joints at locations indicated, but not exceeding,

. Fasten with roofing nails. Install slip sheet over felt underlayment.

50 feet (15.24 m)

C. Expansion-Joint Covers: Install expansion-joint covers at locations and of configuration indicated. Lap joints a minimum of

apart. Install expansion-joint caps.

4 inches (100 mm)

3.7 ROOF FLASHING INSTALLATION

in direction of water flow.

A. General: Install sheet metal flashing and trim to comply with performance requirements, sheet metal manufacturer's written installation instructions, and SMACNA's "Architectural Sheet Metal Manual." Provide concealed fasteners where possible, set units true to line, and level as indicated. Install work with laps, joints, and seams that will be permanently watertight and weather resistant.

B. Roof Edge Flashing: Anchor to resist uplift and outward forces according to recommendations in SMACNA's "Architectural Sheet Metal Manual" and as indicated. Interlock bottom edge of roof edge flashing with continuous cleat anchored to substrate at staggered 3-inch (75-mm)

C. Pipe or Post Counterflashing: Install counterflashing umbrella with close-fitting collar with top edge flared for elastomeric sealant, extending a minimum of

centers.

4 inches (100 mm)

D. Roof-Penetration Flashing: Coordinate installation of roof-penetration flashing with installation of roofing and other items penetrating roof. Seal with elastomeric sealant and clamp flashing to pipes that penetrate roof.

over base flashing. Install stainless-steel draw band and tighten.


3.8 WALL FLASHING INSTALLATION

A. General: Install sheet metal wall flashing to intercept and exclude penetrating moisture according to SMACNA recommendations and as indicated. Coordinate installation of wall flashing with installation of wall-opening components such as windows, doors, and louvers.

3.9 CLEANING AND PROTECTION

A. Clean exposed metal surfaces of substances that interfere with uniform oxidation and weathering.

B. Clean and neutralize flux materials. Clean off excess solder and sealants.

C. Remove temporary protective coverings and strippable films as sheet metal flashing and trim are installed unless otherwise indicated in manufacturer's written installation instructions.


Mt. Pleasant Library 07842-1 100% Printing: 20 March 2009 CORE Group, P.C. FIRE-RESISTIVE JOINT SYSTEMS

SECTION 07842

PART 1 - GENERAL

FIRE-RESISTIVE JOINT SYSTEMS



1.2 SUMMARY


1. Joints in or between fire-resistance-rated constructions. 2. Joints at exterior curtain-wall/floor intersections. 3. Joints in smoke barriers. 4. Smoke seals.

1.3 SUBMITTALS


B. LEED Submittal:

1. Product Data for Credit EQ 4.1: For fire-resistive joint systems, including printed statement of VOC content.

C. Product Schedule: For each fire-resistive joint system. Include location and design designation of qualified testing agency.

1. Where Project conditions require modification to a qualified testing agency's illustration for a particular fire-resistive joint system condition, submit illustration, with modifications marked, approved by fire-resistive joint system manufacturer's fire-protection engineer as an engineering judgment or equivalent fire-resistance-rated assembly.

D. Qualification Data: For qualified Installer.

E. Installer Certificates: From Installer indicating fire-resistive joint systems have been installed in compliance with requirements and manufacturer's written recommendations.

F. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for fire-resistive joint systems.



A. Installer Qualifications: A firm that has been approved by FM Global according to FM Global 4991, "Approval of Firestop Contractors," or been evaluated by UL and found to comply with UL's "Qualified Firestop Contractor Program Requirements."

B. Installer Qualifications: A firm experienced in installing fire-resistive joint systems similar in material, design, and extent to that indicated for this Project, whose work has resulted in construction with a record of successful performance. Qualifications include having the necessary experience, staff, and training to install manufacturer's products per specified requirements. Manufacturer's willingness to sell its fire-resistive joint system products to Contractor or to Installer engaged by Contractor does not in itself confer qualification on buyer.

C. Fire-Test-Response Characteristics: Fire-resistive joint systems shall comply with the following requirements:

1. Fire-resistive joint system tests are performed by a qualified testing agency acceptable to authorities having jurisdiction.

2. Fire-resistive joint systems are identical to those tested per testing standard referenced in "Fire-Resistive Joint Systems" Article. Provide rated systems complying with the following requirements:

a. Fire-resistive joint system products bear classification marking of qualified testing agency.

b. Fire-resistive joint systems correspond to those indicated by reference to designations listed by the following:

1) UL in its "Fire Resistance Directory."



A. Environmental Limitations: Do not install fire-resistive joint systems when ambient or substrate temperatures are outside limits permitted by fire-resistive joint system manufacturers or when substrates are wet due to rain, frost, condensation, or other causes.

B. Install and cure fire-resistive joint systems per manufacturer's written instructions using natural means of ventilation or, where this is inadequate, forced-air circulation.

1.6 COORDINATION

A. Coordinate construction of joints to ensure that fire-resistive joint systems are installed according to specified requirements.

B. Coordinate sizing of joints to accommodate fire-resistive joint systems.

C. Notify Owner's testing agency at least seven days in advance of fire-resistive joint system installations; confirm dates and times on day preceding each series of installations.


PART 2 - PRODUCTS

2.1 FIRE-RESISTIVE JOINT SYSTEMS

A. Where required, provide fire-resistive joint systems that are produced and installed to resist spread of fire according to requirements indicated, resist passage of smoke and other gases, and maintain original fire-resistance rating of assemblies in or between which fire-resistive joint systems are installed. Fire-resistive joint systems shall accommodate building movements without impairing their ability to resist the passage of fire and hot gases.

B. Joints in or between Fire-Resistance-Rated Construction: Provide fire-resistive joint systems with ratings determined per ASTM E 1966 or UL 2079:

1. Joints include those installed in or between fire-resistance-rated walls, floor or floor/ceiling assemblies and roofs or roof/ceiling assemblies.

2. Fire-Resistance Rating: Equal to or exceeding the fire-resistance rating of construction they will join.


a. A/D Fire Protection Systems Inc. b. CEMCO. c. Fire Trak Corp. d. Grace Construction Products. e. Hilti, Inc. f. Johns Manville. g. Nelson Firestop Products. h. NUCO Inc. i. Passive Fire Protection Partners. j. RectorSeal Corporation. k. Specified Technologies Inc. l. 3M Fire Protection Products. m. Tremco, Inc.; Tremco Fire Protection Systems Group. n. USG Corporation.

C. Joints at Exterior Curtain-Wall/Floor Intersections: Provide fire-resistive joint systems with rating determined by ASTM E 119 based on testing at a positive pressure differential of 0.01-inch wg (2.49 Pa)

1. Fire-Resistance Rating: Equal to or exceeding the fire-resistance rating of the floor assembly.

or ASTM E 2307.


a. A/D Fire Protection Systems Inc. b. Grace Construction Products. c. Hilti, Inc. d. Johns Manville. e. Nelson Firestop Products. f. NUCO Inc.


g. Passive Fire Protection Partners. h. RectorSeal Corporation. i. Specified Technologies Inc. j. 3M Fire Protection Products. k. Thermafiber, Inc. l. Tremco, Inc.; Tremco Fire Protection Systems Group. m. USG Corporation.

D. Joints in Smoke Barriers: Provide fire-resistive joint systems with ratings determined per UL 2079.

1. L-Rating: Not exceeding 5.0 cfm/ft (0.00775 cu. m/s x m) of joint at 0.30 inch wg (74.7 Pa)


at both ambient and elevated temperatures.

a. A/D Fire Protection Systems Inc. b. Grace Construction Products. c. Hilti, Inc. d. Johns Manville. e. Nelson Firestop Products. f. NUCO Inc. g. Passive Fire Protection Partners. h. RectorSeal Corporation. i. Specified Technologies Inc. j. 3M Fire Protection Products. k. Tremco, Inc.; Tremco Fire Protection Systems Group. l. USG Corporation.

E. Exposed Fire-Resistive Joint Systems: Provide products with flame-spread and smoke-developed indexes of less than 25 and 450, respectively, as determined per ASTM E 84.

F. VOC Content: Provide fire-resistive joint systems that comply with the following limits for VOC content when calculated according to 40 CFR 59, Subpart D (EPA Method 24):

1. Architectural Sealants: 250 g/L. 2. Sealant Primers for Nonporous Substrates: 250 g/L. 3. Sealant Primers for Porous Substrates: 775 g/L.

G. Accessories: Provide components of fire-resistive joint systems, including primers and forming materials, that are needed to install fill materials and to maintain ratings required. Use only components specified by fire-resistive joint system manufacturer and approved by the qualified testing agency for systems indicated.

2.2 SMOKE SEALS

A. General: Asbestos-free firestopping materials capable of maintaining an effective barrier against flame, smoke and gasses complying with requirements of ASTM E 814 and UL 1479, and providing the fire-rating as indicated on Drawings.


1. Furnish UL-labeled and listed fire and smoke barrier systems, complete with metal collars, incombustible mineral wool or fibrous glass packings and seals, and other accessories required for complete sealing of penetrations.

2. Include polymer firestopping sealant that has been tested according to ASTM E 814, is UL-labeled and listed and that meets the fire-resistive requirements for the location where installed.

3. Provide system selected to meet actual site conditions, conforming to one or more of the following: a. USG Thermafiber Fire/Smoke Stop System including 2-inch thick Smoke Seal

Caulking Compound. b. 3M Fire Barrier Penetration Sealing System, intumescent type, non-sag and self-

leveling types as required. c. Dow Corning Fire Stop Sealants #2000 and Foam #2001. d. Tremco “Fyre Shield,” “Fyre-Sil” and “Fyre-Sil SL” systems.

B. Systems: 3M and USG products are specified to establish the intended types and qualities of the materials and systems. Products shall be used only within a UL-labeled and listed system. 1. Latex Caulking: 3M Fire Barrier CP 25WB Caulk or approved equal as determined by

Architect. 2. Synthetic Elastomer Caulking: 3M Fire Barrier CP 25 N/S No-Sag Caulk and CP 25 S/L

Self-Leveling Caulk or approved equal as determined by Architect. 3. Putty: 3M Fire Barrier Moldable Putty, IPC Flame-Safe FSP1000 or approved equal

product as determined by Architect. 4. Wrap Strip: 3M Fire Barrier FS-195 Wrap/Strip or approved equal product as

determined by Architect. 5. Compound: USG Firecode Compound, Domtar Gyproc 90 Fire-Halt Sealant or approved

equal product as determined by Architect. 6. Mineral Fiber: USG Thermafiber Safing Insulation; Schuller PyroFiber; Backer Rod

Manufacturing and Supply Company Ultra Block; or approved equal safing insulation as determined by Architect with a minimum of 4 pcf density as required by approved assembly.

7. Foam: 3M Fire Barrier 2001 or approved equal product as determined by Architect of medium-density, two-component silicone elastomer foam as required.

8. Silicone Sealant: 3M Fire Barrier 2000 and 2003; Pecora Corp. 864 Silicone or approved equal product as determined by Architect.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates and conditions, with Installer present, for compliance with requirements for joint configurations, substrates, and other conditions affecting performance of the Work.

B. Proceed with installation only after unsatisfactory conditions have been corrected.


3.2 PREPARATION

A. Surface Cleaning: Clean joints immediately before installing fire-resistive joint systems to comply with fire-resistive joint system manufacturer's written instructions and the following requirements:

1. Remove from surfaces of joint substrates foreign materials that could interfere with adhesion of fill materials.

2. Clean joint substrates to produce clean, sound surfaces capable of developing optimum bond with fill materials. Remove loose particles remaining from cleaning operation.

3. Remove laitance and form-release agents from concrete.

B. Priming: Prime substrates where recommended in writing by fire-resistive joint system manufacturer using that manufacturer's recommended products and methods. Confine primers to areas of bond; do not allow spillage and migration onto exposed surfaces.

C. Masking Tape: Use masking tape to prevent fill materials of fire-resistive joint system from contacting adjoining surfaces that will remain exposed on completion of the Work and that would otherwise be permanently stained or damaged by such contact or by cleaning methods used to remove stains. Remove tape as soon as possible without disturbing fire-resistive joint system's seal with substrates.

3.3 FIRE-RESISTIVE JOINT SYSTEMS INSTALLATION

A. General: Install fire-resistive joint systems to comply with manufacturer's written installation instructions and published drawings for products and applications indicated.

B. Install forming materials and other accessories of types required to support fill materials during their application and in position needed to produce cross-sectional shapes and depths required to achieve fire ratings indicated.

1. After installing fill materials and allowing them to fully cure, remove combustible forming materials and other accessories not indicated as permanent components of fire-resistive joint system.

C. Install fill materials for fire-resistive joint systems by proven techniques to produce the following results:

1. Fill voids and cavities formed by joints and forming materials as required to achieve fire-resistance ratings indicated.

2. Apply fill materials so they contact and adhere to substrates formed by joints. 3. For fill materials that will remain exposed after completing the Work, finish to produce

smooth, uniform surfaces that are flush with adjoining finishes.

3.4 SMOKE SEAL APPLICATION

A. Use materials best suited to installation as recommended by smoke seal manufacturer to meet field conditions.


B. Conform preparation of surfaces, mixing and application to manufacturer’s written instructions and UL requirements.

C. Apply to thicknesses as required to provide the fire resistance ratings.

D. Seal and holes and voids made by penetrations to ensure effective smoke stops.

E. Install materials so that void openings 4 inches (102 mm) will support required floor load unless the opening is protected from possible loading or traffic.

3.5 IDENTIFICATION

A. Identify fire-resistive joint systems with preprinted metal or plastic labels. Attach labels permanently to surfaces adjacent to and within 6 inches (150 mm)

1. The words "Warning - Fire-Resistive Joint System - Do Not Disturb. Notify Building Management of Any Damage."

of joint edge so labels will be visible to anyone seeking to remove or penetrate joint system. Use mechanical fasteners or self-adhering-type labels with adhesives capable of permanently bonding labels to surfaces on which labels are placed. Include the following information on labels:

2. Contractor's name, address, and phone number. 3. Designation of applicable testing agency. 4. Date of installation. 5. Manufacturer's name. 6. Installer's name.


A. Inspecting Agency: Owner will engage a qualified testing agency to perform tests and inspections.

B. Where deficiencies are found or fire-resistive joint systems are damaged or removed due to testing, repair or replace fire-resistive joint systems so they comply with requirements.

C. Proceed with enclosing fire-resistive joint systems with other construction only after inspection reports are issued and installations comply with requirements.

3.7 CLEANING AND PROTECTING

A. Clean off excess fill materials adjacent to joints as the Work progresses by methods and with cleaning materials that are approved in writing by fire-resistive joint system manufacturers and that do not damage materials in which joints occur.

B. Provide final protection and maintain conditions during and after installation that ensure fire-resistive joint systems are without damage or deterioration at time of Substantial Completion. If damage or deterioration occurs despite such protection, cut out and remove damaged or deteriorated fire-resistive joint systems immediately and install new materials to produce fire-resistive joint systems complying with specified requirements.

Mt. Pleasant Library 07920-1 75% Printing: 20 February 2009 CORE Group, P.C. JOINT SEALANTS

SECTION 07920

PART 1 - GENERAL

JOINT SEALANTS



1.2 SUMMARY


1. Silicone joint sealants. 2. Urethane joint sealants. 3. Latex joint sealants. 4. Preformed joint sealants. 5. Acoustical joint sealants.

1.3 PRECONSTRUCTION TESTING

A. Preconstruction Compatibility and Adhesion Testing: Submit to joint-sealant manufacturers eight samples of materials that will contact or affect joint sealants. Use ASTM C 1087 to determine whether priming and other specific joint preparation techniques are required to obtain rapid, optimum adhesion of joint sealants to joint substrates.

B. Preconstruction Field-Adhesion Testing: Before installing sealants, field test their adhesion to Project joint substrates. Test joint sealants according to Method A, Field-Applied Sealant Joint Hand Pull Tab, in Appendix X1 in ASTM C 1193 or Method A, Tail Procedure, in ASTM C 1521.

1.4 SUBMITTALS

A. Product Data: For each joint-sealant product indicated.

B. LEED Submittal:

1. Product Data for Credit EQ 4.1: For sealants and sealant primers used inside the weatherproofing system, including printed statement of VOC content.

C. Samples: For each kind and color of joint sealant required.

D. Joint-Sealant Schedule: Include the following information:


1. Joint-sealant application, joint location, and designation. 2. Joint-sealant manufacturer and product name. 3. Joint-sealant formulation. 4. Joint-sealant color.

E. Product test reports.

F. Preconstruction compatibility and adhesion test reports.

G. Preconstruction field-adhesion test reports.

H. Field-adhesion test reports.

I. Warranties.


A. Testing Agency Qualifications: Qualified according to ASTM C 1021 to conduct the testing indicated.

B. Preinstallation Conference: Conduct conference at Project site.

1.6 WARRANTY

A. Special Installer's Warranty: Manufacturer's standard form in which Installer agrees to repair or replace joint sealants that do not comply with performance and other requirements specified in this Section within specified warranty period.

1. Warranty Period: Two years from date of Substantial Completion.

B. Special Manufacturer's Warranty: Manufacturer's standard form in which joint-sealant manufacturer agrees to furnish joint sealants to repair or replace those that do not comply with performance and other requirements specified in this Section within specified warranty period.

1. Warranty Period: 20 years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 MATERIALS, GENERAL

A. VOC Content of Interior Sealants: Provide sealants and sealant primers for use inside the weatherproofing system that comply with the following limits for VOC content when calculated according to 40 CFR 59, Part 59, Subpart D (EPA Method 24):

1. Architectural Sealants: 250 g/L. 2. Sealant Primers for Nonporous Substrates: 250 g/L. 3. Sealant Primers for Porous Substrates: 775 g/L.


B. Liquid-Applied Joint Sealants: Comply with ASTM C 920 and other requirements indicated for each liquid-applied joint sealant specified, including those referencing ASTM C 920 classifications for type, grade, class, and uses related to exposure and joint substrates.

1. Suitability for Immersion in Liquids. Where sealants are indicated for Use I for joints that will be continuously immersed in liquids, provide products that have undergone testing according to ASTM C 1247. Liquid used for testing sealants is deionized water, unless otherwise indicated.

C. Stain-Test-Response Characteristics: Where sealants are specified to be nonstaining to porous substrates, provide products that have undergone testing according to ASTM C 1248 and have not stained porous joint substrates indicated for Project.

D. Suitability for Contact with Food: Where sealants are indicated for joints that will come in repeated contact with food, provide products that comply with 21 CFR 177.2600.

2.2 SILICONE JOINT SEALANTS

A. Single-Component, Nonsag, Neutral-Curing Silicone Joint Sealant: ASTM C 920, Type S, Grade NS, Class 100/50, for Use NT.


a. Dow Corning Corporation; 790. b. GE Advanced Materials - Silicones; SilPruf LM SCS2700. c. May National Associates, Inc.; Bondaflex Sil 290; Bondaflex Sil 728 NS. d. Pecora Corporation; 301 NS; 311 NS; 890; 890FTS. e. Sika Corporation, Construction Products Division; SikaSil-C990. f. Tremco Incorporated; Spectrem 1; Spectrem 800.

B. Single-Component, Nonsag, Neutral-Curing Silicone Joint Sealant: ASTM C 920, Type S, Grade NS, Class 50, for Use NT.

1. Products: Subject to compliance with requirements, provide the following] [provide one of the following:

a. BASF Building Systems; Omniseal 50. b. Dow Corning Corporation; 756 SMS; 791; 795; 995. c. GE Advanced Materials - Silicones; SilGlaze II SCS2800; SilPruf NB SCS9000;

SilPruf SCS2000; UltraPruf II SCS2900. d. May National Associates, Inc.; Bondaflex Sil 295. e. Pecora Corporation; 864; 895; 898. f. Polymeric Systems, Inc.; PSI-641. g. Sika Corporation, Construction Products Division; SikaSil-C995. h. Tremco Incorporated; Spectrem 2; Spectrem 3..

C. Mildew-Resistant, Single-Component, Nonsag, Neutral-Curing Silicone Joint Sealant: ASTM C 920, Type S, Grade NS, Class 25, for Use NT.

1. Products: Subject to compliance with requirements, provide the following:


a. Pecora Corporation; 898.

2.3 URETHANE JOINT SEALANTS

A. Multicomponent, Nonsag, Urethane Joint Sealant: ASTM C 920, Type M, Grade NS, Class 50, for Use NT.


a. Pecora Corporation; Dynatrol II. b. Polymeric Systems, Inc.; PSI-270. c. Tremco Incorporated; Dymeric 240; Dymeric 240 FC.

B. Immersible, Single-Component, Pourable, Traffic-Grade, Urethane Joint Sealant: ASTM C 920, Type S, Grade P, Class 25, for Uses T and I.


a. Sika Corporation, Construction Products Division; Sikaflex - 1CSL. b. Tremco Incorporated; Vulkem 45.

C. Immersible Multicomponent, Pourable, Traffic-Grade, Urethane Joint Sealant: ASTM C 920. Type M, Grade P, Class 25, for Use T and I.


a. LymTal International, Inc.; Iso-Flex 880 GB. b. May National Associates, Inc.; Bondaflex PUR 2 SL. c. Tremco Incorporated; Vulkem 245.

2.4 LATEX JOINT SEALANTS

A. Latex Joint Sealant: Acrylic latex and siliconized acrylic latex, ASTM C 834, Type OP, Grade NF.


a. BASF Building Systems; Sonolac. b. Bostik, Inc.; Chem-Calk 600. c. May National Associates, Inc.; Bondaflex 600; Bondaflex Sil-A 700. d. Pecora Corporation; AC-20+. e. Schnee-Morehead, Inc.; SM 8200. f. Tremco Incorporated; Tremflex 834.


2.5 PREFORMED JOINT SEALANTS

A. Preformed Foam Joint Sealant: Manufacturer's standard preformed, precompressed, open-cell foam sealant manufactured from urethane foam with minimum density of 10 lb/cu. ft. (160 kg/cu. m)


and impregnated with a nondrying, water-repellent agent. Factory produce in precompressed sizes in roll or stick form to fit joint widths indicated; coated on one side with a pressure-sensitive adhesive and covered with protective wrapping.

a. Dayton Superior Specialty Chemicals; Polytite Standard. b. EMSEAL Joint Systems, Ltd.; Emseal 25V. c. Sandell Manufacturing Co., Inc.; Polyseal. d. Schul International, Inc.; Sealtite; Sealtite 50N.. e. Willseal USA, LLC; Willseal 150; Willseal 250.

2.6 ACOUSTICAL JOINT SEALANTS

A. Nondrying, nonhardening, nonskinning synthetic rubber for concealed joints as selected by Architect.

B. Acoustical Joint Sealant: Manufacturer's standard nonsag, paintable, nonstaining latex sealant complying with ASTM C 834. Product effectively reduces airborne sound transmission through perimeter joints and openings in building construction as demonstrated by testing representative assemblies according to ASTM E 90.


a. Pecora Corporation; AC-20 FTR; AIS-919. b. USG Corporation; SHEETROCK Acoustical Sealant

2.7 JOINT SEALANT BACKING

A. General: Provide sealant backings of material that are nonstaining; are compatible with joint substrates, sealants, primers, and other joint fillers; and are approved for applications indicated by sealant manufacturer based on field experience and laboratory testing.

B. Cellular Acrylic-Impregnated Open Cell Foam Backing: 1. Basis-of-Design Product: Subject to conformance with requirements, provide Backerseal

secondary sealant manufactured by Emseal Joint Systems, Ltd. or approved equal product as determined by Architect. a. Composition: Water-based, 100% acrylic impregnated expanding foam sealant

with internal laminations of closed-cell (EVA) foam.

C. Cylindrical Sealant Backings: ASTM C 1330, Type C (closed-cell material with a surface skin), Type O (open-cell material), Type B (bicellular material with a surface skin) or any of the preceding types, as approved in writing by joint-sealant manufacturer for joint application


indicated, and of size and density to control sealant depth and otherwise contribute to producing optimum sealant performance.

D. Plastic foam joint filler as selected by Architect.

E. Bond-Breaker Tape: Polyethylene tape or other plastic tape recommended by sealant manufacturer for preventing sealant from adhering to rigid, inflexible joint-filler materials or joint surfaces at back of joint. Provide self-adhesive tape where applicable.


A. Primer: Material recommended by joint-sealant manufacturer where required for adhesion of sealant to joint substrates indicated, as determined from preconstruction joint-sealant-substrate tests and field tests.

B. Cleaners for Nonporous Surfaces: Chemical cleaners acceptable to manufacturers of sealants and sealant backing materials, free of oily residues or other substances capable of staining or harming joint substrates and adjacent nonporous surfaces in any way, and formulated to promote optimum adhesion of sealants to joint substrates.

C. Masking Tape: Nonstaining, nonabsorbent material compatible with joint sealants and surfaces adjacent to joints.

PART 3 - EXECUTION

3.1 PREPARATION

A. Surface Cleaning of Joints: Clean out joints immediately before installing joint sealants to comply with joint-sealant manufacturer's written instructions.

1. Remove laitance and form-release agents from concrete. 2. Clean nonporous joint substrate surfaces with chemical cleaners or other means that do

not stain, harm substrates, or leave residues capable of interfering with adhesion of joint sealants.

B. Joint Priming: Prime joint substrates where recommended by joint-sealant manufacturer or as indicated by preconstruction joint-sealant-substrate tests or prior experience. Apply primer to comply with joint-sealant manufacturer's written instructions. Confine primers to areas of joint-sealant bond; do not allow spillage or migration onto adjoining surfaces.

C. Masking Tape: Use masking tape where required to prevent contact of sealant or primer with adjoining surfaces that otherwise would be permanently stained or damaged by such contact or by cleaning methods required to remove sealant smears. Remove tape immediately after tooling without disturbing joint seal.


3.2 INSTALLATION

A. Sealant Installation Standard: Comply with recommendations in ASTM C 1193 for use of joint sealants as applicable to materials, applications, and conditions indicated.

B. Install sealant backings of kind indicated to support sealants during application and at position required to produce cross-sectional shapes and depths of installed sealants relative to joint widths that allow optimum sealant movement capability.

1. Do not leave gaps between ends of sealant backings. 2. Do not stretch, twist, puncture, or tear sealant backings. 3. Remove absorbent sealant backings that have become wet before sealant application and

replace them with dry materials.

C. Install bond-breaker tape behind sealants where sealant backings are not used between sealants and backs of joints.

D. Install sealants using proven techniques that comply with the following and at the same time backings are installed:

1. Place sealants so they directly contact and fully wet joint substrates. 2. Completely fill recesses in each joint configuration. 3. Produce uniform, cross-sectional shapes and depths relative to joint widths that allow

optimum sealant movement capability.

E. Tooling of Nonsag Sealants: Immediately after sealant application and before skinning or curing begins, tool sealants according to requirements specified in subparagraphs below to form smooth, uniform beads of configuration indicated; to eliminate air pockets; and to ensure contact and adhesion of sealant with sides of joint.

1. Remove excess sealant from surfaces adjacent to joints. 2. Use tooling agents that are approved in writing by sealant manufacturer and that do not

discolor sealants or adjacent surfaces. 3. Provide concave joint profile per Figure 8A in ASTM C 1193, unless otherwise

indicated.

F. Acoustical Sealant Installation: Comply with ASTM C 919 and with manufacturer's written recommendations.

G. Clean off excess sealant or sealant smears adjacent to joints as the Work progresses by methods and with cleaning materials approved in writing by manufacturers of joint sealants and of products in which joints occur.


A. Field-Adhesion Testing: Field test joint-sealant adhesion to joint substrates as follows:

1. Extent of Testing: Test completed and cured sealant joints as follows:


a. Perform 10 tests for the first 1000 feet (300 m)

b. Perform 1 test for each

of joint length for each kind of sealant and joint substrate.

1000 feet (300 m)

2. Test Method: Test joint sealants according to Method A, Field-Applied Sealant Joint Hand Pull Tab, in Appendix X1 in ASTM C 1193 or Method A, Tail Procedure, in ASTM C 1521.

of joint length thereafter or 1 test per each floor per elevation.

a. For joints with dissimilar substrates, verify adhesion to each substrate separately; extend cut along one side, verifying adhesion to opposite side. Repeat procedure for opposite side.

3. Inspect tested joints and report on the following:

a. Whether sealants filled joint cavities and are free of voids. b. Whether sealant dimensions and configurations comply with specified

requirements. c. Whether sealants in joints connected to pulled-out portion failed to adhere to joint

substrates or tore cohesively. Include data on pull distance used to test each kind of product and joint substrate. Compare these results to determine if adhesion passes sealant manufacturer's field-adhesion hand-pull test criteria.

4. Record test results in a field-adhesion-test log. Include dates when sealants were installed, names of persons who installed sealants, test dates, test locations, whether joints were primed, adhesion results and percent elongations, sealant fill, sealant configuration, and sealant dimensions.

5. Repair sealants pulled from test area by applying new sealants following same procedures used originally to seal joints. Ensure that original sealant surfaces are clean and that new sealant contacts original sealant.

B. Evaluation of Field-Adhesion Test Results: Sealants not evidencing adhesive failure from testing or noncompliance with other indicated requirements will be considered satisfactory. Remove sealants that fail to adhere to joint substrates during testing or to comply with other requirements. Retest failed applications until test results prove sealants comply with indicated requirements.

3.4 CLEANING

A. Clean off excess sealant or sealant smears adjacent to joints as the Work progresses by methods and with cleaning materials approved in writing by manufacturers of joint sealants and of products in which joints occur.

3.5 PROTECTION

A. Protect joint sealants during and after curing period from contact with contaminating substances and from damage resulting from construction operations or other causes so sealants are without deterioration or damage at time of Substantial Completion. If, despite such protection, damage


or deterioration occurs, cut out and remove damaged or deteriorated joint sealants immediately so installations with repaired areas are indistinguishable from original work.


Section 07131 Self-Adhering Sheet Waterproofing Part 1

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Transcript of Section 07131 Self-Adhering Sheet Waterproofing Part 1