ROOF REPLACEMENT SPECIFICATION MANUAL FOR WICOMICO …€¦ · SECTION 01 43 33.75 – ROOFING...

Wicomico County Board of Education IFB #: 91066-191 Glen Avenue Elementary School / Roof Replacement

Wicomico County Board of Education Specifications Glen Avenue Elementary School

ROOF REPLACEMENT SPECIFICATION MANUAL

FOR

WICOMICO COUNTY BOARD OF EDUCATION – GLEN AVENUE ELEMENTARY SCHOOL



TABLE OF CONTENTS

SECTION 01 43 33.75 ROOFING MANUFACTURER’S FIELD SERVICES PAGE 3

SECTION 06100 ROUGH CARPENTRY PAGE 11

SECTION 07220 ROOF DECK AND INSULATION PAGE 14

SECTION 07 55 00 MODIFIED BITUMEN ROOFING PAGE 21

SECTION 07 60 00 FLASHING AND SHEET METAL PAGE 33



SECTION 01 43 33.75 – ROOFING MANUFACTURER’S FIELD SERVICES

PART 1 — GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including the Conditions of the Contract and Division 07 Specification Sections apply to this Section.

1.2 SUMMARY

A. Section includes Manufacturer’s field services for roofing assemblies.

B. Related Work Specified Elsewhere:

1. Roofing Material: Section 07 55 00 - Modified Bituminous Membrane Roofing.

1.3 REFERENCES

A. International Building Code (current edition) or local authority building code.

B. American Society of Civil Engineers (ASCE): ASCE 7, Minimum Design Loads for Buildings and Other Structures.

C. Factory Mutual Global (FMG): Roof Assembly Classifications.

D. National Roofing Contractors Association (NRCA): Roofing and Waterproofing Manual (Latest Edition).

E. American National Standards Institute and Single Ply Roofing Institute (ANSI/SPRI): ANSI/SPRI ES-1 Testing and Certification Listing of Shop Fabricated Edge Metal

F. Sheet Metal & Air Conditioning Contractor’s National Association (SMACNA) Architectural Sheet Metal Manual (Latest Edition).

1.4 SUBMITTALS FOR REVIEW

A. Product Data: Provide manufacturer's technical product data for each type of roofing product specified. Include data substantiating that materials comply with specified requirements.



B. Specimen Warranty: Provide an unexecuted copy of the warranty specified for this Project, identifying the terms and conditions required of the Manufacturer and the Owner. One manufacture to provide a warranty for low sloped modified roof system. System will have a 30 year NDL “edge to edge” warranty.

C. Roofing System Manufacturer’s Evaluation: Provide a comprehensive written assessment comparing available roofing solutions with validation of why the roofing system selection for the specific project is suitable and appropriate

D. Roofing System Manufacturer’s Report Form: Provide a copy of the report form utilized by the roofing system manufacturer for progress inspections to monitor installation and quality. (On line Reporting only accepted)

E. Online Reporting Capabilities. Provide a sample of the roofing system manufacturer’s online roof inspection report as well as information about how long inspection reports are available to owner. This reporting is to be provided for the duration of the project.

1.5 SUBMITTALS FOR INFORMATION

A. Manufacturer's Installation Instructions: Submit installation instructions and recommendations indicating special precautions required for installing the membrane.

B. Manufacturer's Certificate: Certify that roof system furnished is approved by Factory Mutual Global, Underwriters Laboratories, Warnock Hersey or approved third party testing facility in accordance with ASTM E108, Class A for external fire and meets local or nationally recognized building codes.

C. Manufacturer's Certificate: Certify that materials are manufactured in the United States and conform to requirements specified herein, are chemically and physically compatible with each other, and are suitable for inclusion within the total roof system specified herein.

D. Manufacturer's Certificate: Submit a certified copy of the roofing manufacturer's ISO 9001 compliance certificate.

E. Written certification from the roofing system manufacturer certifying the applicator is currently authorized for the installation of the specified roof system.

F. Design Loads: Submit copy of manufacturer's minimum design load calculations according to ASCE 7, Method 2 for Components and



Cladding. In no case shall the design loads be taken to be less than those detailed in Design and Performance Criteria article of this specification.

G. Qualification data for firms and individuals identified in Quality Assurance Article below.

H. Test Reports: Submit ANSI/SPRI ES-1 Testing and Certification Listing of Shop Fabricated Edge Metal Products.

1.6 CONTRACT CLOSEOUT SUBMITTALS

A. Project Warranty: Provide specified warranty for the Project, executed by the authorized agent of the Manufacturer.

B. Roofing Maintenance Instructions: Provide a roof care and maintenance manual of manufacturer's recommendations for maintenance of installed roofing systems.

C. Insurance Certification: Assist Owner in preparation and submittal of roof installation acceptance certification as may be necessary in connection with fire and extended coverage insurance on roofing and associated work.

D. Close Out Documents: Copy of letters and inspections as performed by the manufacturer shall be submitted at project closeout and include photographic documentation of installation progress, completion letters, manufactures warranties, contractor’s warranties. The manufacturer shall be on site on a daily basis as long as the roofing system is being installed or deemed necessary for the manufacturer to be on site.

1.7 QUALITY ASSURANCE

A. Manufacturer Qualifications: Company specializing in manufacturing the products specified in this Section with not less than 25 years documented experience and have ISO 9001 certification.

B. Installer Qualifications: Company specializing in specified roofing installation with not less than 10 years of experience, and authorized by roofing system manufacturer as qualified to install manufacturer's roofing materials.

C. Installer's Field Supervision: Maintain a full-time Supervisor/Foreman on job site during all phases of roofing work while roofing work is in progress. Maintain proper supervision of workmen.

D. Maintain a copy of the roof plans, details, and specifications in the possession of the Supervisor/Foreman and on the roof at all times.



E. Source Limitations: Obtain all primary components of roof system from a single manufacturer. Secondary products that are required shall be recommended and approved in writing by the roofing system Manufacturer.

1. The manufacturer providing the roofing system warranty must verify that they manufacture a minimum of 75% of the products utilized in the roofing system of this project. Products that are private labeled shall not be considered as manufactured by the roofing system supplier. All approved by the roof system manufacture.

2. Upon request of the Engineer or Owner, submit Manufacturer's written approval of secondary components in list form, signed by an authorized agent of the Manufacturer.

F. Source Quality Control: Manufacturer shall have in place a documented, standardized quality control program such as ISO-9001.

1.8 PRE-INSTALLATION CONFERENCE

A. Pre-Installation Roofing Conference: Convene a pre-roofing conference approximately two (2) weeks before scheduled commencement of roofing system installation and associated work.

B. Require attendance of installer of each component of associated work: installers of deck or substrate construction to receive roofing work: installers of rooftop units and other work in and around roofing that must precede or follow roofing work (including mechanical work if any): architect and/or engineer: owner: roofing system manufacturer's full time employee: and other representatives directly concerned with performance of the Work, including (where applicable) owner's insurers, testing agencies and governing authorities. Objectives of conference include:

1. Review foreseeable methods and procedures related to roofing work, including set up and mobilization areas for stored material and work area.

2. Tour representative areas of roofing substrates (decks), inspect and discuss condition of substrate, roof drains, curbs, penetrations and other preparatory work performed by others.

3. Review structural loading limitations of deck and inspect deck for loss of flatness and for required attachment.



4. Review roofing system requirements (drawings, specifications and other contract documents).

5. Review required submittals both completed and yet to be completed.

6. Review and finalize construction schedule related to roofing work and verify availability of materials, installer's personnel, equipment and facilities needed to make progress and avoid delays.

7. Review required inspection, testing, certifying and material usage accounting procedures.

8. Review weather and forecasted weather conditions and procedures for coping with unfavorable conditions, including temporary roofing.

9. Record discussion of conference including decisions and agreements (or disagreements) reached and furnish a copy of record to each party attending. If substantial disagreements exist at conclusion of conference, determine how disagreements will be resolved and set date for reconvening conference.

C. The Owner's Representative will designate one of the conference participants to record the proceedings and promptly distribute them to the participants for record.

D. The intent of the conference is to resolve issues affecting the installation and performance of roofing work. Do not proceed with roofing work until such issues are resolved to the satisfaction of the owner and [architect and/or engineer] of record. This shall not be construed as interference with the progress of Work on the part of the owner or [architect or engineer] of Record.

1.9 MANUFACTURER'S INSPECTIONS

A. When the Project is in progress, a full-time employee of the roofing system manufacturer must provide the following:

1. Report progress and quality of the work as observed. Progress photos and reports must be provided to the owner at the completion of the entire project or on-line during the installation of the project. This reporting can be completed every two weeks and /or at end of project.



2. Provide daily inspections of the roofing installation. Inspections must include; photographic documentation of work in-progress, written statements of compliance and statements with details/shop drawings as necessary provided by roofing contractor and /or manufacturer. This can be completed every two weeks and /or at end of project.

3. Report to the General Contractor, owner, architect and/or engineer in writing any failure or refusal of the contractor to correct unacceptable practices called to the contractor's attention. This will be corrected in the field and follow up letter of approval shall be sent to the appropriate party of approval from the manufacturer.

4. Confirm after project completion that the manufacturer has observed no application procedures in conflict with the specifications other than those that may have been previously reported and corrected. Manufacturer reserves the right to perform an Infrared scan. The cost of this scan is the sole responsibility of the roofing contractor.

1.10 WARRANTY

A. Upon completion of installation, and acceptance by the owner and architect and/or engineer, the manufacturer will supply to the owner the specified 30 year NDL “edge to edge” warranty. This comprehensive warranty is a non-prorated system warranty covering all components of the roof system for the length of the 30 year edge to edge warranty.

B. Installer will submit two (2)-year workmanship warranty to the membrane manufacturer with a copy directly to the owner.

C. The roofing system manufacturer must have been in continuous business operation for a period of time at least as long as the length of the roof system warranty provided for this project.

1.11 DESIGN AND PERFORMANCE CRITERIA

A. Uniform Wind Uplift Load Capacity (required for each roof section)

1. All wind up lift pressures have been calculated and inserted in the specified roof sections in the specifications, and/or drawings.

B. Drainage Calculations: Drainage shall be calculated for all roof areas to determine suitability of all plumbing and gutter accommodations are sized appropriately to manage storm water runoff.



PART 2 — PRODUCTS (NOT USED)

PART 3 — EXECUTION

3.1 EXECUTION, GENERAL

A. Comply with requirements of related Division 07 Section.

3.2 GENERAL INSTALLATION REQUIREMENTS

A. Cooperate with manufacturer, inspection and test agencies engaged or required to perform services in connection with installing the roof system.

B. Insurance/Code Compliance: Where required by code, install and test the roofing system to comply with governing regulation and specified insurance requirements.

3.3 FIELD QUALITY CONTROL

A. Roofing Manufacturer Representative shall perform field inspection as specified in Article titled: MANUFACTURER’S INSPECTIONS above. Inspections must include photographic documentation of installation progress photo’s, and personnel on the project at the time of inspection

B. Correct defects or irregularities discovered during field inspection. Issues deemed defective must be re-inspected and determined suitable by the roofing manufacturer

C. Require attendance of roofing materials manufacturers' representatives at site during installation of the roofing system. A copy of the specification shall also be on site at all times.

D. Frequent progress meetings shall be conducted during the performance of roof system installation and must be attended by the owner, architect or engineer, roofing system manufacturer's full time employee, and other representatives directly concerned with performance of the work.

3.4 FINAL INSPECTION

A. At the completion of the roofing installation and associated work, meet with contractor, architect or engineer, installer, installer of associated work, owner, roofing system manufacturer's representative, and other representatives directly concerned with performance of roofing system.



B. Walk roof surface areas of the building, inspect perimeter building edges as well as flashing of roof penetrations, walls, curbs and other equipment. List all items requiring correction or completion and furnish copy of list to each party in attendance.

C. Notify the contractor, architect and/or engineer, and owner upon completion of corrections.

D. The roofing system manufacturer reserves the right to request a thermographic scan of the roof during final inspection to determine if any damp or wet materials have been installed. The thermographic scan shall be provided by the roofing contractor.

E. If core cuts verify the presence of damp or wet materials, the roofing contractor shall be required to replace the damaged areas at his own expense.

F. Following the final inspection, provide written notice of acceptance of the installation from the roofing system manufacturer.

G. Immediately correct roof leakage during construction. If the contractor does not respond within twenty four (24) hours, the owner may exercise rights to correct the Work under the terms of the Conditions of the Contract.

END OF SECTION 01 43 33.75

SECTION 06100



06100 - ROUGH CARPENTRY PART 1 - GENERAL 1.01 Related Documents The provisions of the Contract, the General conditions, the Supplementary Conditions and other Division 7 Specification Sections, apply to the work in this section. 1.02 Related Sections: A. Roof and Deck Insulation B. Section 07550 - Modified Bitumen Roof Membrane C. Section 07620 - Flashing and Sheet Metal

1.03 Summary of Work

A. Replacement of Deteriorated Wood Blocking

B. Adjustment of wood blocking to accommodate new insulation thickness. 1.04 Delivery, Storage and Handling

A. Time delivery and installation of the carpentry work to avoid delaying other trades whose work is dependent on or affected by the carpentry work. Keep materials dry during delivery.

B. Store lumber and plywood in stacks with provisions for air circulation within stacks. Protect

bottom of stacks against contact with damp or wet surfaces. C. Protect exposed materials against water and wind. Remove damaged, or unsuitable material from the job site. 1.05 Quality Assurance A. Comply with governing codes and regulations. Use experienced installers.

B. Lumber Standards: American Softwood Lumber Standard PS 20-70 by the U.S. Department of Commerce.

C. Plywood Standards: U.S. product Standard PSI-74/ANSI A 199.1 or latest APA Performance

Standards for American Plywood Association. D. Factory Marking: Mark each piece of lumber or plywood to indicate type, grade, agency providing inspection service.

E. Size and Shape: Dress lumber 4 sides (S4S) and work to shapes and patterns shown. Nominal sizes shown and specified refer to undressed lumber dimensions. Detailed dimensions show actual lumber size required.

PART 11 - PRODUCTS 2.01 Dimensional Lumber and Plywood



A. Construction Lumber: Standard Grade Douglas Fir, Western Larch, western Hemlock (WWPA or

WCLB) or No. 2 dimension Southern Pine (SPIB). B. Exterior Type Plywood: APA Rated Sheathing, EXT. C. Bucks, Nailers, Blocking, ETC.: No. @ common grade of any WWPA or WCLA species or No. 2 Southern Pine (SPIB). D. Anchorage and Fastenings: Proper type, size, material and finish for each applications.

E. Quality: Sound, seasoned, well manufactured materials of longest practical lengths and sizes to minimize joints. Free from warp which cannot be easily corrected by anchoring and attachment. Discard material with defects which would impair quality of work.

PART III - EXECUTION 3.01 Examination A. Verify measurements and dimensions shown before proceeding with carpentry work.

B. Examine supporting structure and conditions under which carpentry work is to be installed. Do not proceed with installation until unsatisfactory conditions have been corrected.

C. Replace deteriorated wood blocking. See allowance quantities.

D. Correlate location of nailers, blocking and similar supports for attached work. E. Scribe and cope as required for accurate fit of carpentry work to other work. 3.02 Protection A. Protect installed work from damage by other trades until acceptance work. 3.03 Installation

A. Provide nailers, blocking and sleepers where shown on the drawings or required for attachment of other work. Coordinate with location with other work involved; refer to shop drawings of such work.

B. Adjust height of wood blocking as necessary to accommodate new insulation thickness.

C. Attach to substrate securely as required to support applied loading. Countersink bolts and nuts flush with surfaces.

D. Securely attach wood nailers to substrates in accordance with Factory Mutual Loss Prevention

Data Sheet 1-49 and as required by recognized standards. E. Provide washers under bolt heads and nuts in contact with wood. F. Do not wax or lubricate fasteners that depend on friction for holding power.

G. Select fasteners of size that will not penetrate members where opposite side will be exposed to view or will receive finished material.

H. Make tight connections between members. Install fasteners without splitting of wood; predrill as

required. Do not drive threaded friction type fasteners; turn into place. Tighten bolts and lag



screws at installation and retighten as required for thigh connections prior to closing in or at completion of work.

I. Install torchable cant strips at vertical intersections and at all penetrations. END OF SECTION 00610



SECTION 07220

ROOF DECK AND INSULATION

PART 1 - GENERAL

1.1 SCOPE OF WORK

A. Provide all labor, equipment, and materials to install roof insulation over the properly prepared deck substrate.

B All Roof Sections, excluding Roof Section 5 and Roof Section 6, as indicated at the pre-bid: Insulation will be a minimum 1.5 base layer Polyisocyranurate insualtion system will be installed over the properly prepared substrate per Factory Mutual I-90 minimum frequency and pattern. Install filler insulation and ¼” per foot tapered insualtion system adhered to the ISO as per F.M. manufactures listing and approved roof system manufacture. Certify the furnished roof system is listed by Factory Mutual Approval standard 4470. An average thermal value of R-30 shall be consistant throughout all roof sections. All internal drains will have an 8 foot sump around and tapered to the internal drains and / or scupper.

1.2 RELATED SECTIONS

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

B. Related work specified elsewhere:

1. Division 7 Section "Modified Bitumen Roofing."

2. Division 7 Section "Flashing and Sheet Metal."

3. Division 6 Section “Rough Carpentry”

1.3 SUMMARY OF WORK

A. Gypsum/Insulating Concrete Decks

1. Mechanically fasten base sheet according to wind uplift calculations. See fastening instructions and design criteria in the drawings.

2. Application of rigid polyisocyanurate thermal insulation in full moppings of hot asphalt. Insulation to have average thermal value of R-30. Insulation to have a taper of ¼-inch per foot to drainage perimeters/fixtures.

3. Installation of ½ inch factory-primed gypsum coverboard in full moppings of hot asphalt over completed thermal insulation.



B. Tectum Decks


2. Install a single-ply smooth-surfaced modified bitumen vapor barrier in full moppings of hot asphalt.

3. Applications of rigid polyisocyanurate thermal insulation in full moppings of hot asphalt. Insulation to have average thermal value of R-30. Insulation to have a taper of ¼ inch per foot to drainage perimeters/fixtures.

4. Installation of 1/2inch factory-primed gypsum coverboard in full moppings of hot asphalt over completed thermal insulation.

C. Metal Decks

1. Mechanical attachment of the base layer rigid polyisocyanurate thermal insulation. See fastening instructions and design criteria in the drawings.

2. Application of subsequent layers of rigid and tapered polyisocyanurate thermal insulation in full moppings of hot asphalt. Insulation to have average thermal value of R-30. Insulation to have a taper of ¼ inch per foot to drainage perimeters/fixtures.

3. Installation of ½ inch factory primed gypsum coverboard in full moppings of hot asphalt over completed thermal insulation.

D. Gypsum/Insulating Concrete Deck Roof Section 5 (Hallway to Rotunda)


2. Application of 1.3 inch thick rigid polyisocyanurate thermal insulation in full moppings of hot asphalt.

3. Installation of ½ inch factory-primed gypsum coverboard in full moppings of hot asphalt over completed thermal insulation.

E. Gypsum/Insulating Concrete Deck Roof Section 6 (Rotunda)


1.4 REFERENCES

ASTM A-167-94a Specification for Stainless and Heat-Resisting Chromium Nickel Steel Plate, Sheet and Strip

ASTM A-653 Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvanized) by the Hot-Dip Process

ASTM B-29 Pig Lead

ASTM B-32 Solder Metal

ASTM C-165-95 Test Method for Measuring Compressive Properties of Thermal Insulation

ASTM C-208-95 Specifications for Cellulosic Fiber Insulating Board

ASTM C-209-92 Test Method for Cellulosic Fiber Insulating Board



ASTM C-272-91 Test Method for Water Absorption of Core Materials for Structural Sandwich Constructions

ASTM C-36 Specification for Gypsum Wallboard

ASTM C-518-91 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus

ASTM C-578-92 Specification for Rigid, Cellular, Polystyrene Thermal Insulation

ASTM C-728-91 Specification for Fiberboard Thermal Insulation Board

ASTM D-5 Test Method for Penetration of Bituminous Materials

ASTM D-36 Test Method for Softening Point of Bitumen (Ring and Ball Apparatus)

ASTM D-312 Specification for Asphalt Used in Roofing

ASTM D-412-92 Test Methods for Vulcanized Rubber and Thermoplastic Rubbers and Thermoplastic Elastomers-Tension

ASTM D-1621-94 Test Method for Compressive Properties of Rigid Cellular Plastics

ASTM D-1622 Test Method for Apparent Density of Rigid Cellular Plastics

ASTM D-1863 Specification for Mineral Aggregate Used on Built-Up Roofs

ASTM D-2126-94 Test Method for Response off Rigid Cellular Plastics to Thermal Humid Aging

ASTM D-2178 Standard Specification for Asphalt Glass Felts used in Roofing and Waterproofing

ASTM D-4601-94 Specification for Asphalt-Coated Glass Fiber Base Sheet Used in Roofing

ASTM D-5147 Sampling and Testing Modified Bituminous Sheet Material

CISPI Cast Iron Soil Pipe Institute, Washington, D.C.

FM Factory Mutual System, Norwood, Massachusetts

NRCA National Roofing Contractors Association, Chicago, IL

SMACNA Sheet Metal and Air Conditioning Contractors National Association

SDI Steel Deck Institute, St. Louis, Missouri

SPIB Southern Pine Inspection Bureau, Pensacola, Florida

UL Underwriter’s Laboratories, Inc., Northbrook, Illinois

FS HH-I-1972 Insulation Board, Polyisocyanurate

FS LLL-1-535B Insulation Board, Thermal (Fiberboard)

WH Warnock Hersey International, Inc., Middletown, Wisconsin



1.4 SUBMITTALS

A. Submit under provisions of Section 07550 - Submittals.

B. Product Data: Provide manufacturer’s specification data sheets for each product in accordance with Section 01 43 33.75.

C. Provide approval letters from insulation manufacturer for use of their insulation within this particular roofing system type.

D. Provide a sample of each insulation type.

E. Shop Drawings

1. Submit manufacturer’s shop drawings indicating complete installation details of tapered insulation system, including identification of each insulation block, sequence of installation, layout, drain locations, roof slopes, thicknesses, crickets and saddles.

2. Shop drawing shall include: Outline of roof, location of drains, complete board layout of tapered insulation components, thickness and the average “R” value for the completed insulation system.

F. Certification

Submit roof manufacturer’s certification that insulation fasteners furnished are acceptable to roof manufacturer.

2. Submit roof manufacturer’s certification that insulation furnished is acceptable to roofing manufacturer as a component of roofing system and is eligible for roof manufacturer’s system warranty.

3. Certify that the roof system is adhered and /or secured to properly to meet requirements of the FM I-90 listing.

4. Certify that the roof system furnished is listed by Factory Mutual Approval Standard 4470.


A. Fire Classification, ASTM E-108



B. Submit certification that the roof system furnished is approved and certified by Factory Mutual, Underwriters Laboratories or Warnock Hersey for external Fire E-108 Class 1A and that the roof system is adhered properly to meet or exceed 1-90.

B. Submit certification that the roof system furnished meets local or nationally recognized building codes for fire Class A and/or wind resistance.

1.6 DELIVERY, STORAGE AND HANDLING

A. Deliver products to site with seals and labels intact, in manufacturer's original containers, dry and undamaged.

B. Store all insulation materials in a manner to protect them from the wind, sun and moisture damage prior to and during installation. Any insulation that has been exposed to any moisture shall be removed from the project site.

C. Keep materials enclosed in a watertight, ventilated enclosure (i.e. tarpaulins).

D. Store materials off the ground. Any warped, broken or wet insulation boards shall be removed from the site.

PART 2 - PRODUCTS

2.1 APPROVED EQUIVALENT

A. Contractor must submit any product not specified at least seven days before the bid date to owner in order for product to be considered for approval. The owner will notify Contractor in writing of decision to accept or reject request. Basis of Design is manufactured by the Garland Company, Inc.

2.2 INSULATION MATERIALS

A. Provide thicknesses of insulation as indicated, provide combination of types and thicknesses to provide a complete system.

1. RIGID POLYISOCYANURATE ROOF INSULATION

a. Qualities: Rigid, closed cell polyisocyanurate foam core bonded to heavy duty glass fiber mat facers. A. Thicknes: 1.5 base layer of polyisocyranurate insualtion. All

roof sections will have minimum base layer.



B. Tapered Insualtion: ¼ inch minimum tapered insualtion system required on all roof sections, excluding roof sections 5&6, as indicated during the walk thru and /or pre-bid meeting.

C. All roofs sections shall have an average thermal value of R-value (30) throuhgout the entir ebuilding except aroundthe internal drains and throughwall scuppers. 8 foot sumps shall be installed around all internal drains and scuppers throughout the roof system.

b. Source

1. Garland 2. Hunter 3. GAF 4. Firestone

c. Insulation board shall meet the following requirements

1. FM listed under Roofing Systems 2. Federal Specification HH-I-1972, Class 1

d. Physical Properties: ISO Dimensional Stability ASTM D-2126 2% max. Compressive Strength ASTM D-1621 20 psi min. Vapor Permeability ASTM E-96 1 perm max. Foam Core Density ASTM D-1622 2.0 pcf min.

2.3 RELATED MATERIALS

A. Fiber Cant and Tapered Edge Strips: Performed rigid insulation units of sizes/shapes indicated, matching insulation board or fiberboard, as per the approved manufacturer.

1. Acceptable Insulation Manufacturers

a. Garland

b. GAF

c. Hunter

d. Commercial Innovations

A. Cover Board: Securerock insulation shall be used for all Cover Board Applications

C. Foam Adhesive: Type recommended by insulation manufacturer and approved by FM and UL for indicated ratings.

PART 3 - EXECUTION

3.1 INSPECTION OF SURFACES

A. Roofing contractor shall be responsible for preparing an adequate substrate to receive insulation.



1. Verify that work which penetrates roof deck has been completed.

2. Verify that wood nailers are properly and securely installed.

3. Examine surfaces for defects, rough spots, ridges, depressions, foreign material, moisture, and unevenness.

4. Do not proceed until defects are corrected.

5. Do not apply insulation until substrate is sufficiently dry.

6. Broom clean substrate immediately prior to application.

7. Use additional insulation to fill depressions and low spots that would otherwise cause ponding water.

8. Verify that temporary roof has been completed.

3.2 INSTALLATION

A. Adhere base, filler, and ¼ inch per foot in full mopings of hot asphalt over a properly prepared substrate. 1/2 inch Securerock will be installed over the ISO throughout the entire roof system excluding roof section #6. Once this secure rock is installed the modified roof system can be installed over the entire roof system.

1. All boards shall be cut and fitted where the roof deck intersects a vertical surface. The boards shall be cut to fit a minimum of ¼” away from the vertical surface.

3.3 CLEANING

A. Remove debris and cartons from roof deck. Leave insulation clean and dry, ready to receive roofing membrane.

END OF SECTION



SECTION 07 55 00 MODIFIED BITUMEN ROOFING PART 1 - GENERAL 1.1 SCOPE OF WORK

A. Provide all labor, equipment, and materials to install the roof system over the properly prepared substrate.

1.2 RELATED SECTIONS

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

B. Related work specified elsewhere: 1. Division 7 Section “Roof and Deck Insulation.” 2. Division 7 Section “Flashing and Sheet Metal.” 3. Division 6 Section “Rough Carpentry.”

1.3 SUMMARY OF WORK

A. Application of 2-Py Modified Bitumen Roof System in full mopping of hot asphalt. Finished Ply to be Granular-Surfaced.

B. Application of 2-Ply Torch-Grade Modified Bitumen Base Flashings. Finish Ply to be Granular-Surfaced.

C. Prior to application of the finish ply, at the direction of the project manager, install additional cast iron roof draws and associated insulation cast iron drain pipe to alleviate retained (ponded) water. See sheets 1-3 on drawings for allowances.

1.4 REFERENCES

ASTM D-41 Specification for Asphalt Primer Used in Roofing, Damp proofing and

Waterproofing ASTM D-312 Specification for Asphalt Used in Roofing ASTM D-451 Test Method for Sieve Analysis of Granular Mineral Surfacing for

Asphalt Roofing Products ASTM D-1079 Terminology Relating to Roofing, Waterproofing and Bituminous

Materials ASTM D-2822 Specification for Asphalt Roof Cement ASTM D-3019 Specification for Lap Cement used with Asphalt Roll Roofing ASTM D-5147 1991 Test Method for Sampling and Testing Modified Bituminous Sheet

Materials ASTM D-6162 Standard Specification for Styrene Butadiene Styrene (SBS) Modified

Bituminous Sheet Materials Using a Combination of Polyester and Glass Fiber Reinforcements

ASTM D-6163 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements



ASTM E-108 Test Methods for Fire Test of Roof Coverings FM Factory Mutual NRCA National Roofing Contractors Association UL Underwriters Laboratories WH Warnock Hersey SMACNA Sheet Metal & Air Conditioning Contractor’s National Association

1.5 SUBMITTALS A. Submit under provisions of Section 01 43 33.75 Submittals.

B. Submit certification that the roof system furnished is approved by Factory Mutual or Warnock Hersey for external fire E-108 Class 1A and that the roof system is adhered properly to meet or exceed 1-90.

C. Product Data for each type of product specified including manufacturer’s technical product data, installation instructions and recommendations for each type of roofing product required. Include data substantiating that materials comply with specified requirements.

D. For all modified bituminous sheet roofing, include independent test data according to ASTM designation D-5147-91 “Standard Test Methods for Sampling and Testing Modified Bituminous Sheet Material”, substantiating that materials comply with specified requirements.

E. Submit documentation verifying the specified roofing system (structural deck, insulation, and modified membranes) has been installed and performing satisfactory for a period of not less than six (6) years and applied over a minimum 400,000 square feet. In order to obtain a true comparison under the same weather conditions, these applications must be within a 150 mile radius of the project location.

F. Show evidence that the products and materials are manufactured in the United States and that materials provided conform to all requirements specified herein, and are chemically and physically compatible with each other and are suitable for inclusion within the total roof system specified herein.

G. Show evidence that the Installer specializes in modified bituminous roof application with a minimum five (5) years experience and who is certified by the roofing system manufacturer as qualified to install manufacturers roofing materials.

H. Provide a sample of each product.

I. Manufacturer’s sample warranty and executed warranty commencing on the date of substantial completion.

J. Certified copy of ISO 9001 compliance.

K. Any material submitted as an equal to specified material must submit additionally three prior jobs within 150 miles radius of project site where the proposed material has been used in a similar roofing system and applied over a minimum of 400,000 sq. ft. The three jobs must be at least six years old and be available for the Owner, or Owner’s Representative, to inspect.




A. Manufacturer Qualifications: Roofing system manufacturer shall have a minimum of 30

years experience in manufacturing modified bitumen roofing products in the United States and be ISO 9001 certified.

1. SBS and SIS modified cap sheet must meet FM test 4470 This test must have approvals dating back at least two (2) years. This test cannot have new approvals as it is a continuing monitor of manufacturing quality and field performance. This test must be performed using the deck, insulation and modified built up roofing system as specified. Similar applications which are not exact will not be considered.

2. Manufacturer of SBS and SIS (Styrene Butadiene Styrene/Styrene Isporene Styrene) must meet the following criteria:

a. Must have been manufacturing the exact specified modified cap sheet for a period not less than five (5) years, in the same configuration specified. Invoices proving polymer purchases may be requested by the Owner for verification purposes.

3. Manufacturer must be currently certified by the International Organization for

Standardization as meeting the minimum quality assurance standards outlined in the I.S.O. 9001 Program, and shall be registered in the current listing of I.S.O. certified manufacturers.

4. Manufacturer, at no cost to the Owner, must make annual inspections on the finished roofing areas for the duration of the warranty period and provide to the Owner any maintenance recommendations.

5. Manufacturer must inspect the job on a daily basis and submit weekly reports to the Owner/Architect to insure proper installation procedures are being followed in accordance with the written specification.

6. Manufacture must provide Owner a 30 year NDL warranty including the system materials and workmanship for the life of the warranty period.

B. Installer Qualifications: Installer (Roofer) shall be specializing in modified bituminous roof application with minimum 5 years experience and who is certified by the roofing system manufacturer as qualified to install manufacturer’s roofing materials.

C. It is the intent of this specification to provide a roof system with an external fire rating. The descriptions given below are general descriptions. The insulation, recovery board, and other components shall be required by the membrane manufacturer to provide a Class A fire resistance rating.

D. Installer’s Field Supervision: Require Installer to maintain a full-time Supervisor/Foreman on job site during all phases of modified bituminous sheet roofing work and at any time roofing work is in progress, proper supervision of workmen shall be maintained. A copy of the specification shall be in the possession of the Supervisor/Foremen and on the roof at all times.



E. It shall be the Contractors responsibility to respond immediately to correction of roof leakage during construction. If the Contractor does not respond within 24 hours, the Owner has the right to hire a qualified contractor and deduct the cost from the contract amount.

F. Insurance Certification: Assist Owner in preparation and submittal of roof installation acceptance certification as may be necessary in connection with fire and extended coverage insurance on roofing and associated work.

G. Pre-application Roofing Conference: Approximately 2 weeks before scheduled commencement of the roofing system and associated work, meet at project site with key personnel responsible for installation of the work, including MEP subcontractors, Owner, roofing system manufacturer’s representative, and other representatives directly concerned with performance of the Work, including (where applicable) Owner’s insurers, test agencies and governing authorities.

Objectives to include: 1. Review foreseeable methods and procedures related to roofing work, inclusive of site

access, staging, and protections. 2. Tour representative areas of roofing substrates (decks), inspect and discuss condition

of substrate, roof drains, curbs, penetrations and other preparatory work performed by other trades.

3. Review structural loading limitations of deck and inspect deck for loss of flatness and for required attachment.

4. Review roofing system requirements (drawings, specifications and other contract documents).

5. Review required submittals both completed and yet to be completed. 6. Review and finalize construction schedule related to roofing work and verify

availability of materials, Installer’s personnel, equipment and facilities needed to make progress and avoid delays.

7. Review required inspection, testing, certifying and material usage accounting procedures.

8. Review weather and forecasted weather conditions and procedures for coping with unfavorable conditions, including temporary roofing to maintain weathertightness.

9. Review notification procedures for weather or non-working days. 10. Review construction waste management and disposal and procedures.

1.7 DELIVERY, STORAGE AND HANDLING

A. Deliver products to site with seals and labels intact, in manufacturer’s original containers, dry and undamaged.

B. Store and handle roofing sheets in a dry, well-ventilated, weather-tight place to ensure no possibility of significant moisture exposure. Store rolls of felt and other sheet materials on pallets or other raised surface. Stand all roll materials on end. Cover roll goods with a canvas tarpaulin or other breathable material (not polyethylene).

C. Do not leave unused materials on the roof overnight or when roofing work is not in progress unless protected from weather and other moisture sources.



D. It is the responsibility of the Contractor to secure all material and equipment on the job site. If any material or equipment is stored on the roof, the Contractor must make sure that the integrity of the deck is not compromised at any time. Damage to the deck caused by the Contractor will be the sole responsibility of the Contractor and will be repaired or replaced at his expense.

1.8 MANUFACTURER’S INSPECTIONS

A. When the project is in progress, the Roofing System Manufacturer will provide the following:

1. Keep the Owner informed as to the progress and quality of the work as observed. 2. Provide job site inspections a minimum of one (1) time daily during work progress. 3. Report to the Owner in writing any failure or refusal of the Contractor to correct

unacceptable practices called to the Contractor’s attention. 4. Confirm after completion of the project and based on manufacturer’s observation and

tests that manufacturer has observed no applications procedures in conflict with the specifications other than those that may have been previously reported and corrected.

1.9 PROJECT CONDITIONS

A. Weather Condition Limitations: Do not apply roofing membrane during inclement weather or when a 40% chance of precipitation is expected.

B. Do not apply roofing insulation or membrane to damp deck surface.

C. Do not expose materials vulnerable to water or sun damage in quantities greater than can be weatherproofed during same day.

D. Proceed with roofing work only when existing and forecasted weather conditions will permit unit of work to be installed in accordance with manufacturer’s recommendations and warranty requirements.

1.10 SEQUENCING AND SCHEDULING

A. Sequence installation of modified bituminous sheet roofing with related units of work specified in other sections to ensure that roof assemblies including roof accessories, flashing, trim and joint sealers are protected against damage from effects of weather, corrosion and adjacent construction activity.

B. All work must be fully completed on each day. Phased construction will not be accepted. 1.11 WARRANTY

A. Upon completion of installation, and acceptance by the Owner and Manufacturer, the manufacturer will supply to the Owner the appropriate 30 year NDL warranty.

1. Warranty shall include all metal components.



B. Contractor shall submit a two-year warranty in accordance with the General Conditions and Section 01 43 33. 75

C. Membrane manufacturer will provide an annual inspection for the life of the warranty. PART 2 - PRODUCTS 2.1 GENERAL

A. When a particular trade name or performance standard is specified it shall be indicative of a minimum standard required. The minimum standard specified is the High Performance Two Ply – Hot Asphalt Applied Modified Bitumen Roof System manufactured by The Garland Company, Inc., Cleveland , Ohio.

B. Provide products as manufactured to the minimum standards for the WCBOE. Bidders proposing substitutes shall submit all required technical performance data information in 07 55 00 to Owner at least seven (7) days prior to bid due date.

1. Substitutes and alternative products the WCBOE minimum standard must comply in all respects with the quality and performance criteria specified. All testing information must be submitted and notarized by a third party accredited testing facility. Manufacturer’s data sheets will not be accepted. All materials submitted shall be submitted in triplicate and The Owner / Architect shall be the sole judge as to whether or not an item submitted as an equal is acceptable. Should the Contractor choose to submit products deemed equal, he shall assume all risk involved should the Owner find it unacceptable.

2.2 DESCRIPTION

A. Modified bituminous sheet roofing work including but not limited to:

1. Base Ply Field and Flashing Membranes, one play of recycled SBS Modified Membrane.

2. Top Ply Field and Flashing Membranes - One ply of recycled SBS / Polyurethane Modified Mineral Membrane.

3. Standard Type III bitumen hot applied asphalt adhesive.

2.3 BITUMINOUS MATERIALS

A. Membrane Adhesive: Basis of Design – Type III Asphalt to meet ASTM D 312



2.4 SHEET MATERIALS

A. Mechanically-attached Base Sheet: Basis of Design – Garland HPR Type II Base Sheet or Approved manufacture by The Garland Company, Inc.

1. Type II Base Sheet: Basis of Design – Garland HPR Type II Base Sheet ASTM D-4601 Type II a. Thickness: 55 mils b. Tensile Strength (ASTM D-5147) 2 in/min. @ 73.4 ±3.6°F MD 44 lbf/in CMD 44 lbf/in

B. Vaper Barrier: Basis of Design – Garland Type VI Premium Glasfelts or Approved manufacture by The Garland Company, Inc.

1. Type VI Premium Glasfelt: Basis of Design – Garland Type VI Premium Glasfelt or Approved manufacture by The Garland Company, Inc.

ASTM D 2178 Type VI a Thickness: 25 mils

b. Tensile Strength (ASTM D-5147) 2 in/min. @ 73.4 ±3.6°F MD 60 lbf/in CMD 60 lbf/in

C. Base Ply Field Membrane: Basis of Design – Garland FlexBase 80

1. Modified Mineral SBS - Recycled Modified Sheet ASTM D-6163 Type III Grade S a. Thickness: 80 mils b. Tensile Strength (ASTM D-5147) 2 in/min. @ 73.4 ±3.6°F MD 225 lbf/in CMD 225 lbf/in c. Tear Strength (ASTM D-5147) 2 in/min. @ 73.4 ± 3.6°F MD 300 lbf CMD 300 lb d. Elongation at Maximum Tensile (ASTM D-5147) 2 in/min. @ 73.4 ± 3.6°F MD 7.0% CMD 7.0% e. Low Temperature Flexibility (ASTM D-5147) -30°F (Passes) f. Recycled Content Pre/Post Consumer Combined = 15%

D. Top Ply Field Membrane: Basis of Design – Garland Optimax FR Mineral

1. Modified Mineral Membrane – Modified / Polyurethane - Recycled Modified Cap

Sheet - ASTM D-6163 Type III Grade G - Mineral a. Thickness: 145 mils b. Tensile Strength (ASTM D-5147)

2 in/min. @ 73.4 ± 3.6°F MD 220 lbf/in CMD 230 lbf/in c. Tear Strength (ASTM D-5147)

2 in/min. @ 73.4 ± 3.6°F MD 300 lbf CMD 300 lbf d. Elongation at Maximum Tensile (ASTM D-5147)

2 in/min. @ 73.4 ± 3.6°F MD 4.7% CMD 5.0% e. Low Temperature Flexibility (ASTM D-5147) -30°F (Passes) f. Reflectivity utilizing white starburst minerals = 45% - 50 % g. Recycled Content Post Industrial = 7%



E. Base Ply Flashing Membrane: Basis of Design – Garland HPR Torch Base Sheet

1. Modified Membrane SBS - Recycled Modified Sheet ASTM D-6163 Type III Grade S, ASTM D 5147 a. Thickness: 110 mils b. Tensile Strength (ASTM D-5147)


2 in/min. @ 73.4 ± 3.6°F MD 250 lbf/in CMD 250 lbf/in d. Elongation at Maximum Tensile (ASTM D-5147)

2 in/min. @ 73.4 ± 3.6°F MD 4.0% CMD 4.0% e. Low Temperature Flexibility (ASTM D-5147) Passes -30°F (-40°C) f. Recycled Content Post Industrial 6%

F. Top Ply Flashing Membrane: Basis of Design – Garland StressPly IV UV Mineral

1. Modified Membrane SBS - Recycled Modified Cap Sheet ASTM D-6162 Type III Grade S, ASTM D 5147 a. Thickness: 195 mils b. Tensile Strength (ASTM D-5147)


2 in/min. @ 73.4 ± 3.6°F MD 250 lbf/in CMD 250 lbf/in d. Elongation at Maximum Tensile (ASTM D-5147)

2 in/min. @ 73.4 ± 3.6°F MD 36.0% CMD 6.0% e. Low Temperature Flexibility (ASTM D-5147) -20°F (Passes) f. Recycled Content NA

2.5 RELATED MATERIALS

A. Roof Insulation: Reference Section 07 22 00 - Roof and Deck Insulation for requirements.

B. Roof Insulation Fasteners: Reference Section 07 22 00 - Roof and Deck Insulation for requirements.

C. Metal Flashing: Reference Section 07 60 00 – Flashing and Sheet Metal for requirements

D. Base Sheet Fasteners for Gypsum/Insulating Concrete. All to be approved by the roof system manufacture. Pull test will be required to determine appropriate fastener to be used.

E. Base Sheet Fasteners for Tectum. All to be approved by the roof system manufacture. Pull test will be required to determine appropriate fastener to be used.

F. Nails and Fasteners:

1. Non-ferrous metal or galvanized steel. 2. Copper nails shall be used with copper. 3. Aluminum or Stainless Steel nails shall be used with aluminum; stainless steel nails

shall be used with stainless steel.



4. Fasteners shall be self-clinching, penetrating type as recommended by the manufacturer of the deck material. Nails and fasteners shall be flush-driven through flat metal discs of not less than 1-inch diameter. Metal discs may be omitted when one-piece composite nails or fasteners with heads not less than 1-inch diameter are used.

G. Metal Discs: Flat discs or caps of zinc-coated sheet metal not lighter than 28 gauge and not

less than 1-inch in diameter. Discs shall be formed to prevent dishing. Bell or cup shaped caps are not acceptable.

H. Sealant: Polyurethane sealant as recommended by roof system manufacturer

2.6 ROOF ACCESSORIES

A. Roof Drains

1. Manufacturer: Josam, Watts, Zurn, or approved equal

2. Basis of Design: Zurn Z100, 15” diameter roof drain with Dura-Coated cast iron body with combination membrane flashing clamp/gravel guard and low silhouette dome a. Outlet size and type as required to tie into existing piping b. Cast iron dome. c. Underdeck clamp d. Secondary clamp collar when required by field conditions

B. Non-Penetrating Pipe Supports and Condensate and Conduit Struts

1. Manufacturer: Erico, Miro Industries, Inc., OMG Roofing Products, or approved equal.

2. Basis of Design: Miro Model RAH Pipe Support a. Self-lubricating polycarbonate roller mounted on stainless steel rod supported

by two stainless steel threaded rods, with height adjustment up to 7-1/2 inches or 12 inches above roof surface.

b. Base Material: UV stabilized polycarbonate resin. c. Size: As required by pipe diameter

3. Basis of Design: Miro Model 2.5 CS-5 Conduit and Condensate Strut a. Hot-dip galvanized strut, 12” long, for attaching pipe with clamps. b. Adjustable height stainless steel rods c. UV Stabilized polycarbonate base, 7.5” x 10”

C. Non-Penetrating Mechanical Equipment Supports

1. Manufacturer: Miro Industries, Inc., or approved equal.

2. Basis of Design: Miro Heavy Duty Mechanical Unit Supports a. Hot dip galvanized heavy duty grate plank system sized to support equipment. b. Hot dip galvanized adjustable height strut support legs and diagonal bracing.



c. UV stabilized polycarbonate resin base, 12”x16”, with rounded edges and drainage ports.

PART 3 - EXECUTION 3.1 EXAMINATION

F. Examine substrate surfaces to receive modified bitumen sheet roofing system and associated work and conditions under which roofing will be installed. Do not proceed with roofing until unsatisfactory conditions have been corrected in a manner acceptable to Roof System Manufacturer.

3.2 GENERAL INSTALLATION REQUIREMENTS

A. Cooperate with manufacturer, inspection and test agencies engaged or required to perform services in connection with installing the modified bitumen sheet system.

B. Insurance/Code Compliance: Where required, install and test the bituminous roofing system to comply with governing regulation and specified insurance requirements.

C. Protect other work from spillage of roofing materials and prevent materials from entering or clogging drains and conductors. Replace or restore other work damaged by installation of the bituminous roofing system work.

D. Coordinate installing roofing system components so that insulation and roofing plies are not exposed to precipitation or left exposed overnight. Provide cut-offs at end of each day’s work to cover exposed ply sheets and insulation with two (2) plies of #15 organic roofing felt with joints and edges sealed with roofing cement. Remove cut-offs immediately before resuming work.

E. Cold applied membrane adhesive coverage rates for interply application (2 to 2-1/2) two to two and a half gallons per 100 square feet (plus or minus 25% on total job average basis.)

F. Substrate Joint Penetrations: Prevent bitumen from penetrating substrate joints, entering building or damaging roofing system components or adjacent building construction.

G. Apply roofing materials as specified herein unless recommended otherwise by manufacturer’s instructions. Keep roofing materials dry before and during application. Do not permit phased construction. Complete application of roofing plies, modified sheet and flashing in a continuous operation. Begin and apply only as much roofing in one day as can be completed that same day.

H. Cut-Offs: At end of each day’s roofing installation, protect exposed edge of incomplete work, including ply sheets and insulation. Provide temporary covering of two (2) plies of #15 organic roofing felt set in full moppings of bitumen with joints and edges sealed.

3.3 BASE PLY FIELD MEMBRANE INSTALLATION

A. Prepare application surfaces.



B. Install (1) ply base ply modified membrane sheet in full-moppings of hot asphalt bitumen shingled uniformly to achieve one ply throughout over the prepared substrate. Shingle in proper direction to shed water on each large area of roofing. Prior to installation, cut sheets into 18’ lengths and allow to relax.

C. Lap ply sheet ends four inches. Stagger end laps twelve inches minimum.

D. Extend plies two inches beyond top edges of cants at wall and projection bases.

E. Install base flashing ply to all perimeter and projection details.

F. Do not walk on rolls during application

G. Broom sheets to ensure full adhesion.

3.4 TOP PLY FIELD MEMBRANE CAP SHEET INSTALLATION

A. The Top Ply modified membrane shall then by solidly bonded to the base ply with full moppings of hot asphalt bitumen.

B. The roll must push a puddle of hot asphalt in front of it with asphalt visible at all side laps. Care should be taken to eliminate air entrapment under the membrane broom plies.

C. Subsequent rolls of modified shall be installed across the roof as above with a minimum of 4” side laps and 8” end laps. The end laps shall be staggered. The modified membrane shall be laid in the same direction as the underlayers but the laps shall not coincide with the laps of the base layers.

D. Extend membrane 2” beyond top edge of all cants in full coatings of the cold adhesive as shown on the drawings.

E. At bleed out, broadcast mineral granules into asphalt while still molten 3.5 BASE FLASHING MEMBRANE INSTALLATION (GENERAL): Torch grade two ply

flashing system will be accepted as approved by the roof system manufacturer.

A. All curb, wall and parapet flashings shall be sealed with an application of mastic and mesh on a daily basis. No condition should exist that will permit moisture entering behind, around or under the roof or flashing membrane.

B. Prepare all walls, penetrations and expansion joints to be flashed and where shown on the drawings with asphalt primer at the rate of 100 square feet per gallon. Allow primer to dry tack free.

C. All plies will be adhered with torch-grade. Nailed off flashings at 8” O.C. at all vertical surfaces.

D. The entire sheet of flashing membrane must be solidly adhered to the substrate.

E. Provide 4 inch flashing membrane side laps.



F. Where applied over mineral granules, torch prime granules to embed in the membrane.

G. Counter flashing, cap flashings, expansion joints, and similar work to be coordinated with roofing work are specified in other sections.

3.6 CLEANING

A. Remove drips of bitumen from surfaces and material.

B. In areas where finished surfaces are soiled by bitumen or any other sources of soiling caused by work of this section, consult manufacturer of surfaces for cleaning advice and conform to their instructions.

3.7 SUBSTNATIAL COMPLETION AND FINAL INSPECTIONS

A. Prior to Substantial Completion, Contractor shall prepare a preliminary work list

identifying items requiring correction.

B. Provide 48 hour prior notice to request Substantial Completion walk-thru with Installer, Installer (s) of associated work, Owner, and Roofing System Manufacturer’s Representative to inspect the installed work and review the preliminary work list. Preliminary work list will be amended as required and become the basis for the formal Substantial Completion work list distributed to attendees.

1. Repair or replace (as required) deteriorated or defective work found at time of inspection to a condition free of damage and deterioration acceptable to the Owner and roofing system manufacturer and according to warranty requirements

2. The Roofing System Manufacturer reserves the right to request a thermographic scan of the roof during final inspection to determine if any damp or wet materials have been installed. The thermographic scan shall be provided by the Roofing Contractor at a negotiated price and at no cost to the Owner.

3. If core cuts verify the presence of damp or wet materials, the Roofing Contractor shall be required to replace the damaged areas at his own expense

C. Upon completion of the work list, Contractor shall provide 48 hours prior notice requesting final inspection.

D. Following the final inspection, acceptance will be made in writing by the roofing system manufacturer

END OF SECTION



SECTION 07 60 00 FLASHING AND SHEET METAL PART 1 - GENERAL 1.1 SCOPE OF WORK: A. Provide all labor, equipment, and materials fabricate and install the following.

1. Fascia, scuppers, and trim. 2. Counterflashings over bituminous base flashing. 3. Counterflashings for roof accessories. 4. Counterflashings at roof mounted equipment and vent stacks. 5. Base flashing coverings.

6. Coping cap at parapets. 7. Gutters, scuppers, conductor heads and down spouts. 8. Counterflashings at walls and penetrations. 9. Lead flashing for bituminous membranes.

10. Other components. 1.2 RELATED SECTIONS

A. Drawing and general provisions of the Contract, including General Supplementary Conditions

and Division 1 Specification Sections, Apply to this Section.

B. RELATED SECTIONS 1. Section 06 10 00 - Rough Carpentry 2. Section 07 55 00 - Modified Bitumen Roofing

1.3 REFERENCES

ASTM A-446 Specification for steel sheet ASTM B-209 Specification for aluminum sheet ASTM B-221 Specification for aluminum extruded shape FS QQ-L-201 Specification for Lead Sheet ASTM A792 Steel Sheet, Aluminum-Zinc Alloy-Coated, by the Hot-Dip Process ASTM B32 Solder Metal ASTM B209 Aluminum and Alloy Sheet and Plate ASTM B486 Paste Solder ASTM D226 Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing ASTM D486 Asphalt Roof Cement, Asbestos-free FS O-F-506 Flux, Soldering, Paste and Liquid WH Warnock Hersey International, Inc. Middleton, WI. FM Loss Prevention Data Sheet NRCA National Roofing Contractors Association - Roofing Manual SMACNA Architectural Sheet Metal Manual

1.4 SUBMITTALS

A. Submit under provisions of all technical performance criteria set forth in the specifications.



B. Product Data: Provide manufacturer's specification data sheets for each product in accordance with Section 07600.

C. Provide approval letters from metal manufacturer for use of their metal within this particular

roofing system type. D. Submit two samples, 12 x 12 inch in size illustrating typical external corner, internal corner,

valley, junction to vertical dissimilar surface, material and finish. E. Shop Drawings 1. For manufactured and shop fabricated gravel stops, fascia, scuppers, and all other sheet

metal fabrications.

2. Shop drawings: Indicate material profile, jointing pattern, jointing details, fastening methods, flashing, termination's, and installation details.

3. Indicate type, gauge and finish of metal.

F. Certification 1. Submit roof manufacturer's certification that metal fasteners furnished are acceptable to

roof manufacturer. 2. Submit roof manufacturer's certification that metal furnished is acceptable to roofing

manufacturer as a component of roofing system and is eligible for roof manufacturer's system warranty.

3. Submit certification that metal and fastening system furnished is Tested and Approved by

Factory Mutual for I-90 Wind Up-Lift Requirements. B. Manufacturer's Product Data

1. Metal material characteristics and installation recommendations. 2. Submit color chart prior to material ordering and/or fabrication so that equivalent colors

to those specified can be approved.

1.5 QUALITY CONTROL A. Reference Standards 1. Comply with details and recommendations of SMACNA Manual for workmanship,

methods of joining, anchorage, provisions for expansion, etc.

2. Factory Mutual Loss Prevention Data Sheet 1-49 windstorm resistance 1-90. B. Manufacturer's Warranty 1. Pre-finished metal material shall require a written 30-year non-prorated warranty

covering fade, chalking and film integrity. The material shall not show a color change greater than 5 NBS color units per ASTM D-2244 or chalking excess of 8 units per ASTM D-659. If either occurs material shall be replaced per warranty, at no cost to the Owner. The metal manufacturer must be the same manufacture as the low slope modified roof system. Multiple manufactures will not be accepted.



C. Contractor's Warranty 1. The Contractor shall provide the Owner with a notarized written warranty assuring that

all sheet metal work including caulking and fasteners to be watertight and secure for a period of two years from the date of final acceptance of the building. Warranty shall include all materials and workmanship required to repair any leaks that develop, and make good any damage to other work or equipment caused by such leaks or the repairs thereof.

1.6 QUALIFICATIONS

A. Fabricator and Installer: Company specializing in sheet metal flashing work with 5 years experience.

1.7 DELIVERY, STORAGE, AND HANDLING A. Deliver materials in manufacturer's original, unopened containers or packages with labels intact

and legible. B. Stack pre-formed and pre-finished material to prevent twisting, bending, or abrasion, and to

provide ventilation. Slope metal sheets to ensure drainage. C. Prevent contact with materials which may cause discoloration or staining. PART 2 - PRODUCTS 2.1 APPROVED EQUIVALENT

A. Contractor must submit any product not specified a minimum seven days before the bid date to Owner in order for product to be considered for approval. The Owner will notify Contractor, in writing, of decision to accept or reject request.

2.2 MATERIALS

A. Metal system is to be comprised of minimum Aluminum or Galvalume steel, coated on both sides

with an epoxy primer and on the weathering surface with a polyvinylidene fluoride or siliconized polyester baked organic coated finish. 1. Materials

a. Aluminum-Zinc alloy Coated Steel Aluminum-zinc alloy (galvalume) coated steel, ASTM A792, coating

designation AZ-50, in thickness of .0217 nom. /24 gauge; 36" to 48" by coil length, chemically treated, commercial or lock-forming quality.

*Subject to minimum quantity requirements *Standard Kynar 500 finish coating is only accepted. b. Colors shall be as specified and chosen by the Owner/Architect.

B. Miscellaneous Metals and Flashings:



1. Zinc-Coated Steel Sheet: ASTM A526, 0.20% copper, 22 gauge (0.0179"); designation

G90 hot-dip galvanized, mill phosphatized (for cleat). 2. Stainless Steel Sheet: Type 302/304, ASTM A167, 28 gage, (0.015"), annealed except

dead soft where fully concealed by other work, 2D (dull) finish. 3. Copper Sheet: ASTM B370, 16 oz. (0.0216), temper HOO (cold-rolled). 4. Lead-Coated Copper Sheet: ASTM B101. Type I, Class A (12-15 1 lb. of lead coating per

100 sq. ft.), 17.1 oz. (0.022"). 2.3 RELATED MATERIALS

A. Metal Primer: Zinc chromate type.

B. Plastic Cement: ASTM D 4586

C. Sealant: Specified on drawings.

D. Lead: Meets Federal Specification QQ-L-201, Grade B, four pounds per square foot.

E. Solder: ANSI/ASTM B32; 95/05 type.

F. Flux: FS O-F-506.

G. Underlayment: Self-adhering rubberized asphalt sheet as approved by the manufacterer.

H. Slip Sheet: Rosin sized building paper.

I. Fasteners:

1. Corrosion resistant screw fastener as recommended by metal manufacturer. Finish exposed fasteners same as flashing metal.

2. Fastening shall conform to Factory Mutual I-90 requirements or as stated on section

details, whichever is more stringent. J. Termination Bars: 1. Shall be aluminum unless otherwise recommended by membrane manufacturers. 2. Material shall be .125” x 1” (minimum) aluminum conforming to ASTM B-221, mill

finish. Bar shall have caulk cup as required. K. Gutter and Downspout Anchorage Devices: Type recommended by fabricator. PART 3 - EXECUTION 3.1 PROTECTION



A. Protect contact areas of dissimilar metals with heavy asphalt or other approved coating, specifically made to stop electrolytic action.

3.2 GENERAL

A. Install work watertight, without waves, warps, buckles, fastening stress, or distortion, allowing for

expansion and contraction. B. Fastening of metal to wood blocking shall comply with SMACNA Architectural Sheet Metal

Manual, Factory Mutual I-90 wind uplift specifications and/or manufacturer's recommendations whichever is of the highest standard.

C. All accessories or other items essential to the completeness of sheet metal installation, whether

specifically indicated or not, shall be provided and of the same material as item to which applied. D. Metal fascia and copings shall be secured to wood nailers at the bottom edge with a continuous

cleat. Cleats shall be at least one gauge heavier than the metal it secures. 3.3 INSPECTION A. Verify roof openings, curbs, pipes, sleeves, ducts, or vents through roof are solidly set, cant strips

and reglets are in place, and nailing strips located. B. Verify membrane termination and base flashings are in place, sealed, and secure. C. Beginning of installation means acceptance of existing conditions. D. Field measure site conditions prior to fabricating work. 3.4 MANUFACTURED SHEET METAL SYSTEMS A. Installing Contractor shall be responsible for determining if the sheet metal systems are in general

conformance with roof manufacturer's recommendations. B. Furnish and install manufactured sheet metal systems in strict accordance with manufacturer's

printed instructions. C. Provide all factory-fabricated accessories including, but not limited to, fascia extenders, miters,

scuppers, joint covers, etc. 3.5 SHOP FABRICATED SHEET METAL A. Installing Contractor shall be responsible for determining if the sheet metal systems are in general

conformance with roof manufacturer's recommendations. B. Metal work shall be shop fabricated to configurations and forms in accordance with recognized

sheet metal practices. C. Hem exposed edges. D. Angle bottom edges of exposed vertical surfaces to form drip.



E. All corners for sheet metal shall be lapped with adjoining pieces fastened and set in sealant. F. Joints for gravel stop fascia system, cap flashing, and surface-mount counterflashing shall be

formed with a 1/4” opening between sections. The opening shall be covered by a cover plate or backed by an internal drainage plate formed to the profile of fascia piece. The cover plate shall be embedded in mastic, fastened through the opening between the sections and loose locked to the drip edges.

G. Install sheet metal to comply with Architectural Sheet Metal Manual, Sheet Metal and Air Conditioning Contractor's National Associations, Inc.

H. Refer to the project drawings for specific details.

END OF SECTION

ROOF REPLACEMENT SPECIFICATION MANUAL FOR WICOMICO …€¦ · SECTION 01 43 33.75 – ROOFING...

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Transcript of ROOF REPLACEMENT SPECIFICATION MANUAL FOR WICOMICO …€¦ · SECTION 01 43 33.75 – ROOFING...