Purchasing Division ADDENDUM NO. 2

Purchasing Division

ADDENDUM NO. 2 DATE: March 18, 2014 FROM: City of Grand Junction Purchasing Division TO: All Offerors RE: Grand Valley West Transfer Station Building Construction Project IFB-3793-14-SDH

Offerors responding to the above referenced solicitation are hereby instructed that the requirements have been clarified, modified, superseded and supplemented as to this date as hereinafter described.

Please make note of the following clarifications:

1) Bid Form: An updated Addendum 2 Bid Form shall be completed and submitted. Fillable form versions of all forms will be posted on our website at: http://www.gjcity.org/BidOpenings.aspx.

2) Davis Bacon Wages: The U.S. Department of Labor Prevailing Wage Resource Book has been posted on our website at: http://www.gjcity.org/BidOpenings.aspx.

3) Modified Davis Bacon Wages: The Department of Labor has modified the Davis Bacon Wage’s for: Type - (Building). The updated wages have been posted on our website at: http://www.gjcity.org/BidOpenings.aspx. Davis Bacon Type – (Highway) wages have not been updated.

4) Question 17: “8/A012 show a reflective shield but no insulation. 07 2100-3,2.4,A.4 indicates the insulation should be a R-10 with a minimum thickness of 2”. Please clarify.” Response: See addendum #01

5) Question 18: “A161: Vestibule 101, Lobby 102 & Vestibule 107 have CT1 for base material. At question is the stucco walls, do they get base or not? A/402 doesn’t show any at the stucco except under the brochure rack 7/A403 shows it under the brochure rack, but not in the vestibule. Please clarify.” Response: Provide CT as scheduled on base of stucco clad walls per A161. See Addendum #02 (wall tag to be 2A for wall with brochure rack).

6) Question 19: “2/A301: The bullet resistant wall goes to Grid G. Is the door to have any bullet resistant requirements?” Response: See Addendum #02

7) Question 20: “Window V, bullet resistant glazing, appears to be vertically butt glazed with no framing between lites. Is there any type of frame and is it butt glazed?” Response: Per section 08 8000; 2.11 and 3.8 the verticals are butt jointed with 4 inch security baffles directly behind each. The butt joints are connected to the panels with (2) clamps as specified. The head and jamb framing is two piece snap sash as specified. The sill is the stainless steel U-channel as specified.

http://www.gjcity.org/BidOpenings.aspx



8) Question 21: “The specs call out the interior storefront to be a 2” profile 450 front glazed

system, however A722/2 shows it as a center glazed that appears to be 1-3/4”. Which is correct?” Response: See Addendum #02

9) Question 22: “A721 entries show a 8” aluminum sill however A722/1 shows entry sill as 2”.

Which is correct?” Response: See Addendum #02

10) Question 23: “Doors show an 8” bottom rail. Should they be 10” for ADA?”

Response: See Addendum #02

11) Question 24: “Also, there is no prevailing wage determination for roofers or exterior sheet metal workers in the information that has been provided. If you have any idea where a wage could be determined I would appreciate that also” Response: See the Davis Bacon Add. Classification Process Book (aka: U.S. Department of Labor Prevailing Wage Resource Book) posted on our website.

12) Question 25: “Are the toilet paper dispensers also installed by the owner? Or should I put a number in our bid to install these items?” Response: See specification section 10 2800 Toilet, Bath and Laundry Accessories.

13) Question 26: “what goes the side walls of the drinking fountain?” Response: The wall tile pattern returns into recess on each sidewall. The rear wall only per detail 2/A403 receives the CT5.

14) Question 27: “on page a403, does ct-4 accent go between all rows of ct-2 or just 1 row?” Response: On sheet A403 the CT-4 accent tile band is noted as typical between the larger wall tiles.

15) Question 28: “…concerning the segmented walls with the silicone butt glazed vertical mullions…the SSG mullions will not wind load as drawn. He suggested with the current mullion spans to go to two (2) vertical non SSG mullions as per attached. Other options would be to go to a center glaze system and use an adjustable mullion or change the vertical mullion spans. How would you like us to proceed.” Response: See Addendum #02

16) Question 29: “Window V, bullet resistant glazing, appears to be vertically butt glazing with no framing between lites. Is there any type of frame and is it butt glazed?” Response: See response to question 20 above.

17) Question 30: “The specs call out the interior storefront to be a 2" profile 450 front glazed system, however A722/2 shows it as a center glazed that appears to be 1-3/4". Which is correct?” Response: See response to question 21 above.

18) Question 31: “A721 entries show a 8" aluminum sill however A722/1 shows entry sill as 2". Which is correct?” Response: See response to question 22 above.

http://publicweb-fs.ci.grandjct.co.us/trimviewdoc/?=SOLDOC/8335

19) Question 32: “Doors show an 8" bottom rail. Should they be 10" for ADA?” Response: See response to question 23 above.

20) Question 33: “A011 indicates 4 bench seating at each bus shelter 1/A021 indicates 2 bench seating with the two others being future Please clarify.” Response: See Addendum #02

21) Question 34: “The Kawneer #451-T offset specified for this project and our similar EFCO #433 offset product will not wind load at the sizes shown even by using steel in the system. If we were to go “center set” then we can get the system to load in the sizes shown but that will also require the possible use of heavy wall and possibly extra heavy wall EFCO #403. Can you tell me if you have any direction for us on this issue?” Response: See Addendum #02.

22) Question 35: “I have reviewed the invitation to bid documents for this project but can’t find any information regarding the completion time, if a Builders Risk Policy is required or if there are any liquidated damages. Can you suggest where I might find the answers to these questions?” Response: Please see the project specifications manual. Bid Form has a blank to be filled in by Contractor for time of completion. See REVISISION OF SECTION 107 for CDOT insurance requirements. Per REVISION OF SECTION 108; sub-section 108.9 there are no liquidated damages.

23) Question 36: “is there a plumbing finish fixture list ? & will the plumbing cont. supply them” Response: Refer to specification section 224000 for fixtures. Plumbing contractor shall provide the fixtures.

24) Question 37: “are the water closets wall hung”

Response: Refer to specification section 224000 for fixtures. They are wall hung.

25) Question 38: “i have concerns of 3/4" pex turning 180 degrees in 9 inches,, ( that is in order to keep straight & symmetrical ) my question is would the owner & engineer consider 1/2" pex since all loops are in the 350' range & 1/2" pex will deliver the amount of BTU to the slab” Response: Uponor (Wirsbo) lists the minimum bending radius for ¾” tubing as 4.5 inches, therefore 9 inches for a 180° bend. The tubing does not need to be bent to a 9 inch 180° bend because the tubing is allowed to be farther apart near the bend. ½ inch tubing will be too small for the required lengths and flow rates.

26) Question 39: “C005: Is the 18” ST line between the two manholes new? (West property line south) Is the line extended past the south manhole and capped?” Response: 18” storm pipe is existing. Manhole just south of 24 ½ Road bus access is existing but was either modified or replaced with new when City installed elliptical pipe north of this manhole. Manhole at southwest corner of property is new manhole that will be placed on top of existing 18” pipe – and is part of this project.

27) Question 40: “Storm MH (southwest corner) refers to Note #8. There isn’t a note #8 on C001 Storm Sewer Construction Notes.” Response: Numbering of the Storm Sewer Construction Notes was revised and #8 is now #7. Note is for the location of the lid on the new manhole.

28) Question 41: “C005: Are drains #1 to #8 to be designed around Small Area Inlets on D-11 of the City Standards?” Response: See Addendum #02.

29) Question 42: “We have found mention of liquidated damages throughout the RFP, but have not been able to find the dollar amount/day the penalty has been set at. Please clarify if there will be a set amount for the penalty, and if yes, provide the amount/day.” Response: Per REVISION OF SECTION 108; sub-section 108.9 there are no liquidated damages.

30) Question 43: “How does the CDOT 640 hours OJT program apply to this project when it is oriented to highway construction?” Response: Applies to both building/vertical construction as well as highway/site work construction as this project involves both.

31) Question 44: “How does the GC meet the guidelines for an approved plan which isn't structured for general construction?” Response: Applies to both building/vertical construction as well as highway/site work construction as this project involves both.

32) Question 45: “In talking with the CDOT person who approves OJT plans, she was not familiar with how this applies to general construction. How do we comply?” Response: Applies to both building/vertical construction as well as highway/site work construction as this project involves both.

The original solicitation for the project noted above is amended as noted.

All other conditions of subject remain the same.

Respectfully,

Nicholas C Jones, Buyer City of Grand Junction, Colorado

ADDENDUM No. 2 ATTACHMENT

Chamberlin Architects, P.C. 437 Main Street Grand Junction, CO 81501

PROJECT Grand Valley Transit West Transfer Station Project No. 1164

March 18, 2014

The original Specifications dated 2/14/14 and Drawings dated 2/14/14, for the project noted above are amended as noted in this Addendum. This Addendum may include revised Project Manual pages and/or Drawings that are to be inserted in the correct sequence in the Construction Documents. All bidders are required to include the items listed in the Addendum as part of their bid. This Addendum consists of Twenty Pages (20) pages total including attachments.

Drawing changes are clouded. Text deleted from the project manual by this addendum is indicated by Strikethrough (example). New text included in the Project manual is indicated in double underline typeface (example).

ITEM NO. DESCRIPTION

SPECIFICATIONS

ADD2-1. Section 03 3300 Cast-In-Place Concrete: Delete paragraph 2.6 in its entirety and replace with the following:

“2.6 VAPOR RETARDERS A. Plastic Vapor Retarder: ASTM E 1745, Class A. Include manufacturer's

recommended adhesive or pressure-sensitive tape. 1. Available Products:

a. Fortifiber Corporation; Moistop Ultra A.b. Raven Industries Inc.; Vapor Block 15.c. Reef Industries, Inc.; Griffolyn Type-65G.”

ADD2-2. Section 03 3300 Cast-In-Place Concrete: Delete paragraph 3.5 in its entirety and replace with the following:

“3.5 VAPOR RETARDERS A. Sheet Vapor Retarder: Place, protect, and repair sheet vapor retarder

according to ASTM E 1643 and manufacturer’s written instructions. recommended adhesive or pressure-sensitive tape. 1. Install in position as indicated in the details.2. Lap joints 6 inches and seal with manufacturer’s recommended tape.3. Seal all penetrations through the vapor retarder as per the

manufacturer’s written recommendations.

ADD2-3. Section 03 3300 Cast-In-Place Concrete: Paragraph 3.9; B, add the following sentence to the paragraph B as follows: “Rub surface with carborundum brick while concrete is steel green to even out surface without the addition of water.”

ADD2-4. Section 05 1200 Structural Steel Framing: Paragraph 1.1; sub-paragraph A, add item #4 as follows: “4. Architecturally Exposed Structural Steel (AESS) as indicated fabricated to

AISC 303.” ADD2-5. Section 05 1200 Structural Steel Framing: Add Paragraph 3.6 as follows:

“3.6 SCHEDULE A. Steel at the following locations shall be fabricated and erected as

Architecturally Exposed Structural Steel (AESS): 1. Bus shelter exposed steel framing.”

ADD2-6. Section 08 1113 Hollow Metal Doors and Frames: Revise paragraph 2.4; A, 7 as follows: “7. Glazing: Bullet resistant, polycarbonate glazing as per specification section 08

8000; paragraph 2.10 a. Size: As indicated in drawings specified above.”

ADD2-7. Section 08 4113 Aluminum Framed Entrances and Storefront: Delete the section in its entirety and replace with the attached revised section dated 3/18/14.

ADD2-8. Section.10 7500 Flagpoles: Under part 2; paragraph 2.1, sub-paragraph A Add the

following as approved equal manufacturers’: “1. Pole Tech Company, Inc 2. Valmont Flagpoles”

ADD2-9. Section 07 4113 Preformed Metal Soffit Panels: Section 3.3 Add sub-paragraph “C” as follows: “C. Where field cut openings are required to fit to other work or for the installation of

items within the panel field. The tolerance for cut openings shall be 1/8 inch maximum from true alignment in 10’-0” non-cumulative.”

ADD2-10. Section 235223 Boilers: Paragraph 2.1; sub-paragraph H delete in its entirety and add the

following: “H. Manufacturers: The following manufacturers are acceptable for substitutions for

the basis of design units scheduled. Manufacturer’s specific models have not been evaluated for compliance with the specifications. The supplier and contractor shall be responsible for determination of equivalency with the specified equipment, salient characteristics and required performance before choosing to use the substitutions as a basis for their bid. After the construction contract has been awarded, the Engineer and Owner shall review submittals to determine acceptability based on compliance or noncompliance with the specifications.

1. Patterson Kelly. 2. Laars. 3. Raypack. 4. HydroTherm 5. Burnham, 6. Lochinvar. 7. Or approved equal.”

ADD2-11. Section 238103 Packaged Rooftop Air Conditioning Units: Paragraph 2.1; sub-paragraph P delete in its entirety and add the following: “P. Manufacturers: The following manufacturers are acceptable for substitutions for

the basis of design units scheduled. Manufacturer’s specific models have not been evaluated for compliance with the specifications. The supplier and contractor shall be responsible for determination of equivalency with the specified equipment, salient characteristics and required performance before choosing to use the substitutions as a basis for their bid. After the construction contract has been awarded, the Engineer and Owner shall review submittals to determine acceptability based on compliance or noncompliance with the specifications.

1. Trane. 2. Aaon. 3. Lennox. 4. Carrier. 5. Or approved equal.”

DRAWINGS

ADD2-12. Sheet C005 Utility Composite: Revise drains out in the landscape areas drains #4 thru #8 to the City Small Area Drain type as shown on sheet D-11 of the City Standards. All other drains to remain as shown.

ADD2-13. Sheet A011 Architectural Site Plan: Revise note at SW bus shelter to read as follows:

“(2) TWO BENCH SEATS AT EACH BUS SHELTER, TYPICAL.”

ADD2-14. Sheet A021 Bus Shelter Plans and Elevations: Delete Details 4 and 5 in their entirety and replace with the revised details ASK-1 dated 3/18/14.

ADD2-15. Sheet A022 Bus Shelter Details: Detail 8, Add the following note:

“STUCCO COLORS: APPLY COLORS STC2 FROM THE BASE UP TO 5’-4” AT THE REVEAL LINE. APPLY STC1 TO THE AREA ABOVE 5’-4” AND THE SLOPED TOP.”

ADD2-16. Sheet A101First Floor Plan: Add wall type tag “2A” to the radius wall adjacent to column grid 6.

ADD2-17. Sheet A701 Door Types, Schedule, Details & Sign Types: Revise the door schedule as follows for door 103

“Door type: C (per specification section 08 1113; 2.4)”

ADD2-18. Sheet A721 Window Types: Add note as follows to all aluminum door locations on sheet:

“ALL ALUMINUM DOORS TO HAVE 10” HIGH BOTTOM RAIL”

ADD2-19. Sheet A721 Window Types: Window type V, add note as follows:

“PROVIDE 4 INCH SECURITY BAFFLES BEHIND EACH MITERED BUTT JOINT IN BULLET RESISTANT BARRIER SYSTEM. PROVIDE TWO CUSTOM CLAMPS SIMILAR TO #PB008BS AT EACH VERTICAL JOINT.PROVIDE BULLET RESISTANT VOICE TRANSMISSION ASSEMBLY CENTERED ON THE DEAL TRAY ”

ADD2-20. Sheet A722 Window Details: Add the following General Notes to the sheet:

“2. THE POSITION OF THE LEADING EDGE OF THE WINDOW FRAMING WILL STAY IN THE POSITION AS SHOWN IN THE DETAILS REGARDLESS OF THE FRAMING TYPE SCHEDULED.

3. AT DETAILS WHERE WINDOW FRAMING IS CHANGED TO CURTAINWALL HOLD THE EXTERIOR PERIMETER SEALANT BACK 1/2 INCH MINIMUM OR AS RECOMMENDED BY THE MANUFACTURER TO ALLOW DRAINAGE OF THE FRAMING SYSTEM.”

ADD2-21. Sheet A722 Window Details: Detail 1 - Revise detail to indicate the height of the aluminum storefront sill to be 8 inches.

ADD2-22. Sheet E101 Lighting Plan: Make the following changes/revisions

1. Revise lighting fixture designation as shown of sketches – See attached sketches ESK1 and ESK2 for sheet E101 dated 3/18/14.

2. Revise and add lighting fixtures to the lighting fixture schedule – See attached sketch ESK3 for sheet E101 dated 3/18/14.

3. Prior approval requests for the lighting fixture schedule. The following fixtures have been prior approved as follows:

a. Type “A” – Neoray - # 23DR-2T8-FSR-XX-U-EB-S1-S93. Approved as follows: Provide with GE Ultramax Ballast #78621.

b. Type “AA” – Neoray - # 23DR-1T8-FSR-XX-U-EB-S1-S93. Approved as follows: Provide with GE Ultramax Ballast #78621.

c. Type “AE” – Neoray - # 23DR-2T8-FSR-XX-U-EB-S1-S93-EM. Approved as follows: Provide with GE Ultramax Ballast #78621.

d. Type “AW” – Alight - # G5-4-T8SD-35-U-A-G-W-Q. Approved as follows: Provide with GE Ultramax Ballast #78621.

e. Type “G” – Halo Comm - # PD6A120-60VC. Approved as follows: Provide with TCP – LED lamp #LED17E26P3841KFL.

f. Type “P1” – Invue - # 2-VXM-400MP-MT-3S-BZ-MA1207BZ. Approved as follows: Provide double headed fixture.

g. Type “P2” – Invue - # 2-VXM-400MP-MT-3S-BZ-HS-MA1207BZ. Approved as follows: Provide double headed fixture.

h. Type “P3” – Invue - # VXS-1500MP-MT-2S-BZ-MA1207BZ. Approved .

i. Type “P4” – Invue - # 1-VXM-250MP-MT-2S-BZ-MA1207BZ / 1-VXM-250MP-MT-4S-BZ-MA1207BZ. Approved.

j. Type “P5” – Invue - # VXM-250MP-MT-2S-BZ-HS-MA1207BZ. Approved .

k. Type “P6” – Invue - # VXM-250MP-MT-2S-BZ-HS-MA1207BZ. Approved.

l. Type “P7” – Invue - # VXM-400MP-MT-3S-BZ-MA1207BZ. Approvied as follows: Provide type III fixture.

m. Type “P8” – Invue - # VXM-400MP-MT-3S-BZ-HS-MA1207BZ. Approved .

n. Type “P9” – Alight - # G5-4-T8SD-35-U-A-G-W-Q. Approved.

o. Type “PF” – Lumiere - # 6000A-MH150MP-SP-208-NXX-CP. Approved .

p. Type “R” – Failsafe - # FMR-D-14-228-UNV-90/86-EB81-WL-SF3. Approved.

q. Type “R” – Kenall - #RCA -4- 717-2-32 * 1-120 * 19 * EL-WL-PF with inner .007 UV overlay. Approved.

r. Type “PF” – Kim Lighting - # LTV710-SP-150PMH-208-SS10. Approved.

s. Type “X1” –Exitronix - # 902-U-NC-GC- * -BA. Approved.

t. Lighting Relay Panel – Greengate - # LK8 relay panel. Approvied as follows: Provide cabinet with 12 relays.

END OF ADDENDUM TWO (2)

1164 – GVT West Transfer Station Addendum #02 CDOT Project #STL R300-184 3/18/14 CDOT Project Code #18749

ALUMINUM-FRAMED ENTRANCES AND STOREFRONTS 08 4113 - 1

SECTION 08 4113 - ALUMINUM-FRAMED ENTRANCES AND STOREFRONTS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Storefront framing for window walls. 2. Storefront framing for punched openings and windows as scheduled. 3. Curtainwall framing for window walls as scheduled. 4. Manual-swing entrance doors.

1.2 DEFINITIONS

A. ADA/ABA Accessibility Guidelines: U.S. Architectural & Transportation Barriers Compliance Board's "Americans with Disability Act (ADA) and Architectural Barriers Act (ABA) Accessibility Guidelines for Buildings and Facilities."

1.3 PERFORMANCE REQUIREMENTS

A. General Performance: Aluminum-framed systems shall withstand the effects of the following performance requirements without exceeding performance criteria or failure due to defective manufacture, fabrication, installation, or other defects in construction: 1. Movements of supporting structure indicated on Drawings including, but not limited to,

deflection from uniformly distributed and concentrated live loads. 2. Dimensional tolerances of building frame and other adjacent construction. 3. Failure includes the following:

a. Deflection exceeding specified limits. b. Thermal stresses transferring to building structure. c. Framing members transferring stresses, including those caused by thermal and

structural movements to glazing. d. Loosening or weakening of fasteners, attachments, and other components. e. Sealant failure.

B. Delegated Design: Design aluminum-framed systems, including comprehensive engineering analysis by a qualified professional engineer, using performance requirements and design criteria indicated.

C. Wind Loads: As indicated on Drawings.

D. Air Infiltration: Provide aluminum-framed systems with maximum air leakage through fixed glazing and framing areas of 0.06 cfm/sq. ft.of fixed wall area when tested according to ASTM E 283 at a minimum static-air-pressure difference of 1.57 lbf/sq. ft.



E. Water Penetration under Static Pressure: Provide aluminum-framed systems that do not evidence water penetration through fixed glazing and framing areas when tested according to ASTM E 331 at a minimum static-air-pressure difference of 20 percent of positive wind-load design pressure, but not less than 6.24 lbf/sq. ft.

F. Water Penetration under Dynamic Pressure: Provide aluminum-framed systems that do not evidence water leakage through fixed glazing and framing areas when tested according to AAMA 501.1 under dynamic pressure equal to 20 percent of positive wind-load design pressure, but not less than 6.24 lbf/sq. ft..

1. Maximum Water Leakage: No uncontrolled water penetrating aluminum-framed systems or water appearing on systems' normally exposed interior surfaces from sources other than condensation. Water leakage does not include water controlled by flashing and gutters that is drained to exterior and water that cannot damage adjacent materials or finishes.

G. Thermal Movements: Provide aluminum-framed systems that allow for thermal movements resulting from the following maximum change (range) in ambient and surface temperatures. Base engineering calculation on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss.

1. Temperature Change (Range): 120 deg F, ambient; 180 deg F, material surfaces. 2. Test Performance: No buckling; stress on glass; sealant failure; excess stress on framing,

anchors, and fasteners; or reduction of performance when tested according to AAMA 501.5.

a. High Exterior Ambient-Air Temperature: That which produces an exterior metal-surface temperature of 180 deg F

b. Low Exterior Ambient-Air Temperature: 0 deg F.

3. Interior Ambient-Air Temperature: 75 deg F

H. Thermal Conductance: Provide aluminum-framed systems with fixed glazing and framing areas having an average U-factor of not more than 0.57 Btu/sq. ft. x h x deg F when tested according to AAMA 1503.

1.4 SUBMITTALS

A. Product Data: For each type of product indicated. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for aluminum-framed systems. Provide manufacturer’s standard installation instructions.

B. Shop Drawings: For aluminum-framed systems. Include plans, elevations, sections, details, and attachments to other work.

1. Include details of provisions for system expansion and contraction and for drainage of moisture in the system to the exterior.



2. Provide reaction / loading data for curtainwall system. Indicate reinforcing as required to comply with wind loading for conditions and layout shown.

C. Samples for Verification: For each type of exposed finish required, in manufacturer's standard sizes.

D. Other Action Submittals:

1. Entrance Door Hardware Schedule: See section 08 7100. Prepared by or under the supervision of supplier, detailing fabrication and assembly of entrance door hardware, as well as procedures and diagrams. Coordinate final entrance door hardware schedule with doors, frames, and related work to ensure proper size, thickness, hand, function, and finish of entrance door hardware. Coordinate door and frame preparation to receive electronic hardware as scheduled.

1.5 QUALITY ASSURANCE

A. Installer Qualifications: Manufacturer's authorized representative who is trained and approved for installation of units required for this Project.

B. Testing Agency Qualifications: Qualified according to ASTM E 699 for testing indicated.

C. Product Options: Information on Drawings and in Specifications establishes requirements for systems' aesthetic effects and performance characteristics. Aesthetic effects are indicated by dimensions, arrangements, alignment, and profiles of components and assemblies as they relate to sightlines, to one another, and to adjoining construction. Performance characteristics are indicated by criteria subject to verification by one or more methods including preconstruction testing, field testing, and in-service performance.

1. Do not revise intended aesthetic effects, as judged solely by Architect, except with Architect's approval. If revisions are proposed, submit comprehensive explanatory data to Architect for review.

D. Source Limitations for Aluminum-Framed Systems: Obtain from single source from single manufacturer.

E. Welding Qualifications: Qualify procedures and personnel according to AWS D1.2, "Structural Welding Code - Aluminum."

1.6 PROJECT CONDITIONS

A. Field Measurements: Verify actual locations of structural supports for aluminum-framed systems by field measurements before fabrication and indicate measurements on Shop Drawings.

1.7 WARRANTY



A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace components of aluminum-framed systems that do not comply with requirements or that fail in materials or workmanship within specified warranty period.

1. Failures include, but are not limited to, the following:

a. Structural failures including, but not limited to, excessive deflection. b. Deterioration of metals and other materials beyond normal weathering. c. Water leakage through fixed glazing and framing areas. d. Failure of operating components.

2. Warranty Period: 1 year from date of Substantial Completion.

1.8 MAINTENANCE SERVICE

A. Entrance Door Hardware:

1. Maintenance Tools and Instructions: Furnish a complete set of specialized tools and maintenance instructions as needed for Owner's continued adjustment, maintenance, and removal and replacement of entrance door hardware.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Basis of Design Product / System: Subject to compliance with requirements, provide Kawneer 451T SSG (exterior) and Kawneer 450 (interior) or comparable product by:

B. EFCO Corporation Model 403 Thermal exterior and 402 Interior.

C. Wausau or approved equal.

2.2 MATERIALS

A. Aluminum: Alloy and temper recommended by manufacturer for type of use and finish indicated.

1. Sheet and Plate: ASTM B 209. 2. Extruded Bars, Rods, Profiles, and Tubes: ASTM B 221. 3. Extruded Structural Pipe and Tubes: ASTM B 429. 4. Structural Profiles: ASTM B 308/B 308M. 5. Welding Rods and Bare Electrodes: AWS A5.10/A5.10M.

B. Steel Reinforcement: Manufacturer's standard zinc-rich, corrosion-resistant primer, complying with SSPC-PS Guide No. 12.00; applied immediately after surface preparation and pretreatment. Select surface preparation methods according to recommendations in SSPC-SP COM and prepare surfaces according to applicable SSPC standard.



1. Structural Shapes, Plates, and Bars: ASTM A 36/A 36M. 2. Cold-Rolled Sheet and Strip: ASTM A 1008/A 1008M. 3. Hot-Rolled Sheet and Strip: ASTM A 1011/A 1011M.

2.3 FRAMING SYSTEMS, GENERAL

A. Store front framing Members: Manufacturer's standard extruded-aluminum framing members of thickness indicated and reinforced as required to support imposed loads.

1. Construction: Thermally broken stick-frame. 2. Profile: 2” x 4-1/2” nominal dimensions. 3. Glazing System: Retained mechanically with gaskets on four sides with Structural

Silicone Glazed (SSG) intermediate vertical joints. 4. Glazing Plane: Front 5. Intermediate Mullions: Manufacturers standard. Structural glazed pivot mullion capable

of accepting glazing with variable angle of 172 degrees between sections.

B. Curtain wall framing Members: Manufacturer's standard extruded-aluminum framing members of thickness indicated and reinforced as required to support imposed loads.

1. Construction: Shear block stick-frame. 2. Profile: 2-1/2” x 6” nominal dimensions. 3. Glazing System: Retained mechanically with gaskets on two sides with Structural

Silicone Glazed (SSG) intermediate vertical joints. 4. Glazing Plane: Front 5. Intermediate Mullions: Manufacturers standard splayed intermediate mullions to accept

5to 15 degree outside splay.

C. Brackets and Reinforcements: Manufacturer's standard high-strength aluminum with nonstaining, nonferrous shims for aligning system components.

D. Fasteners and Accessories: Manufacturer's standard corrosion-resistant, nonstaining, nonbleeding fasteners and accessories compatible with adjacent materials.

1. Use self-locking devices where fasteners are subject to loosening or turning out from thermal and structural movements, wind loads, or vibration.

2. Reinforce members as required to receive fastener threads. 3. Provide concealed fasteners. If exposed fasteners are required, use countersunk Phillips

screw heads, finished to match framing system.

E. Concrete and Masonry Inserts: Hot-dip galvanized cast-iron, malleable-iron, or steel inserts, complying with ASTM A 123/A 123M or ASTM A 153/A 153M.

F. Concealed Flashing: Manufacturer's standard corrosion-resistant, nonstaining, nonbleeding flashing compatible with adjacent materials.

G. Framing System Gaskets and Sealants: Manufacturer's standard, recommended by manufacturer for joint type.



H. Extruded Sill Flashing: Kawneer 451T-HP-037 high performance extruded sub sill flashing or equal with attachment clips for securing framing sections to sub-sill without penetration of sub-sill for storefront framing.

I. Extruded Head Receptor: Manufacturer’s standard compensating head receptor. Kawneer 451T-VG-570 for storefront framing. To allow deflection of structure without compression of window system.

2.4 FRAMING SYSTEMS

A. Exterior Framing at Vestibule 101, Lobby 102 and Vestibule 107 [FS-1]: 1. Basis of Design Product: Kawneer 451T SSG (Thermally Broken). 2. Profile: 2” x 4-1/2” nominal dimensions. 3. Glazing System: Retained mechanically with gaskets on four sides with Structural

Silicone Glazed (SSG) intermediate vertical joints. 4. Glazing Plane: Front

B. Exterior Curtainwall Framing [CW-1]: 1. Basis of Design Product: Kawneer 1600 System 2 SSG. 2. Profile: 2-1/2” x 6” nominal dimensions. 3. Glazing System: Retained mechanically with gaskets on two sides with Structural

Silicone Glazed (SSG) intermediate vertical joints. 4. Glazing Plane: Front 5. Reinforcing: as required concealed within mullions.

C. Punched Windows in Exterior Walls [FS-2]: 1. Basis of Design Product: Kawneer 451T (Thermally Broken). 2. Profile: 2” x 4-1/2” nominal dimensions. 3. Glazing System: Retained mechanically with gaskets on four sides. 4. Glazing Plane: Front

D. Interior Framing at Vestibules 101 and 107 [FS-3]: 1. Basis of Design Product: Kawneer 450 (with optional 2 inch sightline). 2. Profile: 2” x 4-1/2” nominal dimensions (to match exterior framing) 3. Glazing System: Retained mechanically with gaskets on four sides. 4. Glazing Plane: Front Center

2.5 GLAZING SYSTEMS

A. Glazing: As specified in Division 08 Section "Glazing."

B. Glazing Gaskets: Manufacturer's standard compression types; replaceable, molded or extruded, of profile and hardness required to maintain watertight seal.

C. Spacers and Setting Blocks: Manufacturer's standard elastomeric type.

2.6 ENTRANCE DOOR SYSTEMS



A. Exterior Entrance Doors: Kawneer heavy wall wide stile 500 glazed entrance doors for manual-swing operation or comparable product by EFCO. 1. Door Construction: 1-3/4-inchoverall thickness, with minimum 0.125-inch-thick,

extruded-aluminum tubular rail and stile members. Mechanically fasten corners with reinforcing brackets that are deeply penetrated and fillet welded or that incorporate concealed tie rods.

2. Door Design: Heavy Wall Wide stile; 5-inch nominal width with 10-inch bottom rail, minimum wall thickness 0.188 inches

3. Glazing Stops and Gaskets: Square, snap-on, extruded-aluminum stops and preformed gaskets. a. Provide nonremovable glazing stops on outside of door.

2.7 ENTRANCE DOOR HARDWARE

A. General: Provide entrance door hardware for each entrance door to comply with requirements in this Section and Section 087100. 1. Entrance Door Hardware Sets: Provide quantity, item, size, finish or color indicated, and

products equivalent in function and comparable in quality to named products. 2. Opening-Force Requirements:

a. Egress Doors: Not more than 15 lbf to release the latch and not more than 30 lbf to set the door in motion and not more than 15 lbf to open the door to its minimum required width.

b. Accessible Interior Doors: Not more than 5 lbf to fully open door.

B. Opening-Force Requirements: 1. Delayed-Egress Locks: Lock releases within 15 seconds after applying a force of not

more than 15 lbf for not more than 3 seconds. 2. Latches and Exit Devices: Not more than 15 lbf required to release latch.

C. Hinges: As specified in Division 08 Section "Door Hardware.". .

D. Mortise Auxiliary Locks: As specified in Division 08 Section "Door Hardware.".

E. Cylinders: As specified in Division 08 Section "Door Hardware.".

F. Strikes: As specified in Division 08 Section "Door Hardware.".

G. Operating Trim: As specified in Division 08 Section "Door Hardware.".

H. Closers: As specified in Division 08 Section "Door Hardware.".

I. Panic Exit Devices: As specified in Division 08 Section "Door Hardware.".

J. Weather Stripping: Manufacturer's standard replaceable components. 1. Compression Type: Made of ASTM D 2000, molded neoprene, or ASTM D 2287,

molded PVC. 2. Sliding Type: AAMA 701, made of wool, polypropylene, or nylon woven pile with

nylon-fabric or aluminum-strip backing.



K. Weather Sweeps: Manufacturer's standard exterior-door bottom sweep with concealed fasteners on mounting strip.

L. Thresholds: BHMA A156.21, raised thresholds beveled with a slope of not more than 1:2, with maximum height of 1/2 inch. Interior doors do not require thresholds.

2.8 ACCESSORY MATERIALS

A. Joint Sealants: For installation at perimeter of aluminum-framed systems, as specified in Division 07 Section "Joint Sealants."

B. Bituminous Paint: Cold-applied, asphalt-mastic paint complying with SSPC-Paint 12 requirements except containing no asbestos; formulated for 30-mil thickness per coat.

C. Flashings: Minimum 0.032 inch thick aluminum to match mullion sections where exposed.

D. Aluminum Break metal: Match aluminum storefront thickness and finish.

2.9 FABRICATION

A. Form or extrude aluminum shapes before finishing.

B. Weld in concealed locations to greatest extent possible to minimize distortion or discoloration of finish. Remove weld spatter and welding oxides from exposed surfaces by descaling or grinding.

C. Framing Members, General: Fabricate components that, when assembled, have the following characteristics:

1. Profiles that are sharp, straight, and free of defects or deformations. 2. Accurately fitted joints with ends coped or mitered. 3. Means to drain water passing joints, condensation within framing members, and moisture

migrating within the system to exterior. 4. Physical and thermal isolation of glazing from framing members. 5. Accommodations for thermal and mechanical movements of glazing and framing to

maintain required glazing edge clearances. 6. Provisions for field replacement of glazing from exterior. 7. Fasteners, anchors, and connection devices that are concealed from view to greatest

extent possible.

D. Storefront Framing: Fabricate components for assembly using system as specified above.

E. Entrance Door Frames: Reinforce as required to support loads imposed by door operation and for installing entrance door hardware.

1. At exterior doors, provide compression weather stripping at fixed stops.

F. Entrance Doors: Reinforce doors as required for installing entrance door hardware.



1. At pairs of exterior doors, provide sliding-type weather stripping retained in adjustable strip and mortised into door edge.

2. At exterior doors, provide weather sweeps applied to door bottoms.

G. Entrance Door Hardware Installation: Factory install entrance door hardware to the greatest extent possible. Cut, drill, and tap for factory-installed and field installed entrance door hardware before applying finishes.

H. After fabrication, clearly mark components to identify their locations in Project according to Shop Drawings.

2.10 ALUMINUM FINISHES

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

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas and conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of the Work.

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

3.2 INSTALLATION

A. General:

1. Comply with manufacturer's written instructions. 2. Do not install damaged components. 3. Fit joints to produce hairline joints free of burrs and distortion. 4. Rigidly secure nonmovement joints. 5. Install anchors with separators and isolators to prevent metal corrosion and electrolytic

deterioration. 6. Seal joints watertight unless otherwise indicated.

B. Metal Protection:

1. Where aluminum will contact dissimilar metals, protect against galvanic action by painting contact surfaces with primer or applying sealant or tape, or by installing nonconductive spacers as recommended by manufacturer for this purpose.

2. Where aluminum will contact concrete or masonry, protect against corrosion by painting contact surfaces with bituminous paint.

C. Install components to drain water passing joints, condensation occurring within framing members, and moisture migrating within the system to exterior.



D. Cut, miter and seal extruded subsill at changes in direction. Seal to direct water out from system.

E. Set continuous sill members and flashing in full sealant bed as specified in Division 07 Section "Joint Sealants" to produce weathertight installation.

F. Install components plumb and true in alignment with established lines and grades, and without warp or rack.

G. Install glazing as specified in Division 08 Section "Glazing” and as recommended by storefront manufacturer.

H. Entrance Doors: Install doors to produce smooth operation and tight fit at contact points.

1. Exterior Doors: Install to produce weathertight enclosure and tight fit at weather stripping.

2. Field-Installed Entrance Door Hardware: Install surface-mounted entrance door hardware according to entrance door hardware manufacturers' written instructions using concealed fasteners to greatest extent possible.

I. Install perimeter joint sealants as specified in Division 07 Section "Joint Sealants" to produce weathertight installation.

3.3 ERECTION TOLERANCES

A. Install aluminum-framed systems to comply with the following maximum erection tolerances:

1. Location and Plane: Limit variation from true location and plane to 1/8 inch in 12 feet; 1/4 inch over total length.

2. Alignment:

a. Where surfaces abut in line, limit offset from true alignment to 1/16 inch. b. Where surfaces meet at corners, limit offset from true alignment to 1/32 inch.

B. Diagonal Measurements: Limit difference between diagonal measurements to 1/8 inch.

3.4 SCHEDULE

A. Provide framing as scheduled below for opening and window types as shown on the drawings Sheet A721. 1. CW-1(window wall): B, L, K, Q 2. FS-2(punched openings): A, N, M, C, D, E, F, G, H, R, S, T, U, P, W 3. FS-3(interior storefront frames): O, I, J

3.5 ADJUSTING

A. Adjust operating entrance door hardware to function smoothly as recommended by manufacturer.



3.6 CLEANING

A. Remove protective material from pre-finished aluminum surfaces.

B. Wash down surfaces with solution of mild detergent in warm water, applied with soft, clean wiping cloths. Take care to remove dirt from corners. Wipe surfaces clean.

C. Remove excess sealant by method acceptable to sealant manufacturer.

END OF SECTION 08 4113

BUS SHELTER PLAN100' - 0"

T.O. GRID 1110' - 6 1/2"

AB

T.O. GRID 2109' - 0"

2X2TUBING SCREENW/ PERF MTL. INFILL

MTL SOFFIT PANEL

8"6'

- 4"

5' - 3

"

EXP TS COL PAINT, TYP.

2'-0" WIDE SCUPPERBREAK IN FASCIA

1' - 0"1' - 0"

MTL FASCIA

EQ. EQ. (ASSUMED)

1/4 FILLET WELD ALL AROUNDSCREEN FRAMING CONNECTINGTO STRUCTURAL 5x5 T.S. COLS,TYP @ EACH LOC. (6) THUS

MITER FRAME

2

2

2BUS SHELTER PLAN100' - 0"

T.O. GRID 1110' - 6 1/2"

A B

T.O. GRID 2109' - 0"

SMOOTH RUBBEDEXP CONC. (TYP.)

1" STUCCO

EXP. TS . COLS,PNT

PRE-FINISHED MTL SOFFIT PNL

FINISHGRADE

8"2'

- 4"

JOIN

T SP

ACIN

G

3' - 0

"3'

- 0"

PRE-FINISHED MTL FASCIA

SCREEN(BEYOND)

1/2" REVEAL JT,TYP. CONT.AROUND

3A022

6A022

COPING

(ASSUMED)

STC 2

2

MITER FRAME2

PREPARED BY:PROJECT: PROJECT NO: SCALE:

DESCRIPTION:

DATE: ISSU

ED W

ITH

:

LOCATION:GRAND JUNCTION, COLORADO970.242.6804

RAPID CITY, SOUTH DAKOTA605.355.6804

03/18/14

ADD

#2

1/4" = 1'-0"1164 CAH

BUS SHELTER ELEVATIONS ASK-1

A021GVT WEST

0'2'

4'0'2'

4'A023

PLANTER END ELEVATION1

0'2'

4'0'2'

4'A023

END ELEVATION2

Purchasing Division ADDENDUM NO. 2

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Transcript of Purchasing Division ADDENDUM NO. 2