B08_Attach_101_REV_1st_Bank_084413_Glazed_Aluminum_Curtain_Walls_0007.pdf

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PMIS 245589 GLAZED ALUMINUM CURTAIN WALLS

SECTION 08 44 13 - GLAZED ALUMINUM CURTAIN WALLS

PART 1 GENERAL

1.1 SUMMARY: The work of this Section Includes:

A. Glazed aluminum curtain walls and entrances.

1.2 RELATED SECTIONS:

A. Division 1 requirements

B. Section 04 20 00, “Unit Masonry”

C. Section 05 12 00, Structural Steel Framing”

D. Section 05 40 00, “Cold-Formed Metal Framing”

E. Section 07 92 00, “Joint Sealants”

F. Section 08 41 13, “Aluminum Entrances and Storefronts”

G. Section 08 71 00, “Door Hardware”

H. Section 08 80 00, “Glass and Glazing”

I. Section 09 22 16, “Non-Structural Metal Framing”

1.3 SUBMITTALS

A. Product Data: Submit product data for each type curtain wall series specified.

B. Shop Drawings: Submit shop drawings showing layout, profiles, and product components, including anchorage, accessories, finish colors and textures.

C. Samples: Submit verification samples for colors on actual aluminum substrates indicating full color range expected in installed system.

D. Quality Assurance / Control Submittals:

1. Test Reports: Submit certified test reports showing compliance with specified performance characteristics and physical properties.

2. Installer Qualification Data: Submit installer qualification data.

E. Closeout Submittals:

1. Warranty: Submit warranty documents specified herein.

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2. Project Record Documents: Submit project record documents for installed materials in accordance with Division 1 Project Closeout (Project Record Documents) Section.

1.4 QUALITY ASSURANCE

A. Qualifications:

1. Installer Qualifications: Installer experienced (as determined by contractor) to perform work of this section who has specialized in the installation of work similar to that required for this project. If requested by Contracting Officer, submit reference list of completed projects.

2. Manufacturer Qualifications: Manufacturer capable of providing field service representation during construction process.

B. Mock-Ups (Field Constructed): Install at project site a job mock-up using acceptable products and manufacturer approved installation methods. Obtain Contracting Officer’s acceptance of finish color, and workmanship standard.

1. Mock-Up Size: One full glass panel

2. Incorporation: Mock-up may be incorporated into final construction upon Contracting Officer’s approval.

C. Pre-Installation Meetings: Conduct pre-installation meeting to verify project requirements, substrate conditions, manufacturer’s installation instructions, and manufacturer’s warranty requirements.

1.5 PROJECT CONDITIONS / SITE CONDITIONS

A. Field Measurements: Verify actual measurements/openings by field measurements before fabrication; show recorded measurements on shop drawings. Coordinate field measurements, fabrication schedule with construction progress to avoid construction delays.

1.6 WARRANTY

A. Manufacturer's Warranty: Submit, for Contracting Officer's acceptance, manufacturer's standard warranty document executed by an authorized company official.

1. Warranty Period: Manufacturer’s one (1) year standard warranty commencing on the substantial date of completion for the project provided that the warranty, in no event, shall start later than six (6) months from the date of shipment.

PART 2 PRODUCTS

2.1 SYSTEM PERFORMANCE DESCRIPTION

A. Curtain Wall Framing System:

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1. Description: Framing shall be thermally improved. Horizontal and vertical framing members shall have a nominal face dimension of 2-1/2 inches. Depth as indicated on drawings. Framing system shall provide a flush glazed appearance on all sides with no protruding glass stops.

B. Performance Requirements: Provide aluminum curtain wall, storefront and entrance door systems that comply with performance requirements indicated, as demonstrated by testing manufacturer’s assemblies in accordance with test method indicated.

1. Air Infiltration:

a. Curtain Wall and Storefront: Completed curtain wall systems shall have 0.06 CFM/FT² (1.10 m³/h·m²) maximum allowable infiltration when tested in accordance with ASTM E 283 at differential static pressure of 6.24 PSF (299 Pa).

b. Entrance Doors (Single Acting Butt Hinges or Offset Pivots): Air infiltration shall be tested in accordance with ASTM E 283-91 at static pressure of 1.57 PSF (75 Pa). Infiltration shall not exceed 1.0 CFM/FT² of total door and frame area.

2. Water Infiltration (Curtain Wall and Storefront):

a. No uncontrolled water on indoor face of any component when tested in accordance with ASTM E 331 at a static pressure of 15 PSF (718 Pa).

b. No uncontrolled water on indoor face of any component when tested in accordance with AAMA 501.1 at a dynamic pressure of 15 PSF (718 Pa).

3. Wind loads (Curtain Wall and Storefront): Completed curtain wall system shall withstand wind pressure loads normal to the wall plane as indicated:

a. Positive pressure: 26.7 psf

b. Negative pressure: -35.7 psf

4. Deflection (Curtain Wall and Storefront): Maximum allowable deflection in any member when tested in accordance with ASTM E 330 with allowable stress in accordance with AA Specifications for Aluminum Structures.

a. For spans up to 13’-6” (4.1m): L/175 maximum.

b. For spans greater than 13’-6” (4.1m) but less than 40’-0” (12.2m): L/175 or L/240 + 1/4” (6.4mm).

5. Thermal Movement (Curtain Wall and Storefront): Provide for thermal movement caused by 180 degrees F. (82.2 degrees C.) surface temperature, without causing buckling stresses on glass, joint seal failure, undue stress on structural elements, damaging loads on fasteners, reduction of performance, or detrimental effects.

6. Thermal Performance (Curtain Wall and Storefront): Thermal Performance when tested in accordance with AAMA 507, AAMA 1503, and NFRC 100:

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a. Condensation Resistance Factor (CRFf): A minimum of 65 CRFf. (64 CRFg).

b. Thermal Transmittance U Value: 0.46 BTU/HR/FT²/ºF.

7. Acoustical Performance (Curtain Wall and Storefront): When tested in accordance with AAMA 1801:

a. Sound Transmission Class (STC) shall not be less than: 31 annealed; 34 laminated.

b. Outdoor–Indoor Transmission Class (OITC) shall not be less than: 26 annealed; 28 laminated.

8. Structural Performance (Entrance Doors): Door corner structural strength shall be tested per manufacturer’s dual moment test procedure and certified by an independent testing laboratory to ensure corner integrity and weld compliance. Certified test procedures and results are available upon request.

9. Uniform Load Test (Entrance Doors): +/- 50 psf.

10. Forced Entry Resistance (Entrance Doors): 300 lbs. satisfactory

2.2 MANUFACTURERS

A. Basis of Design (Curtain Wall and Storefront): YKK AP YCW 750 OG Aluminum Curtain Wall System.

B. Basis of Design (Entrance Doors): YKK AP 30D Medium-Stile Swing Entrances

C. Alternate Manufacturers:

1. Kawneer North America

2. Tubelight

3. Contracting Officer-approved equivalent

2.3 MATERIALS

A. Extrusions: ASTM B 221 (ASTM B 221M), 6063-T5 and 6063-T6 Aluminum Alloys.

B. Aluminum Sheet: Aluminum Sheet: ASTM B 209 (ASTM B 209M), 3003-H14 Aluminum Alloy, 0.080” (1.95 mm) minimum thickness.

C. Recycled content: 20%

D. Finish: High-Performance Organic Coating Finish

1. Fluoropolymer Type: Factory applied two-coat 70% Kynar resin by Arkema or 70% Hylar resin by Solvay Solexis, fluoropolymer-based coating system, Polyvinylidene Fluoride (PVF-2), applied in accordance with and meeting AAMA 2605 specifications.

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2.4 ALUMINUM-FRAMED CURTAIN WALL - EXTERIOR

A. Curtain Wall

1. System depth: 6 inches for 1-inch glazing

2. Sight Line: 2.5 inches

3. Outside-glazed with pressure plate; 4-sided capture

4. Thermally broken

2.5 ALUMINUM-FRAMED ENTRANCE

A. Storefront

1. System depth: 7.5 inches for 1-inch glazing

2. Sight Line: 2.5 inches

3. Outside-glazed with pressure plate; 4-sided capture

4. Thermally broken

B. Doors

1. Paired, single-acting

2. Stile Width: 3.5 inches

3. Bottom Rail Width: 10 inches

4. Glass Thickness: 3/4 inch

2.6 ACCESSORIES

A. Manufacturer’s Standard Accessories:

1. Fasteners: Zinc plated steel concealed fasteners; Hardened aluminum alloys or AISI 300 series stainless steel exposed fasteners, countersunk, finish to match aluminum color.

2. Sealant: System sealants selected by installer are to be permanently elastic, non-shrinking, non-migrating type recommended by sealant manufacturer for joint size, movement, and compatibility.

3. Glazing: Setting blocks, edge blocks, and spacers in accordance with ASTM C 864, shore durometer hardness as recommended by manufacturer; Glazing gaskets in accordance with ASTM C 864.

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2.7 GLAZING

A. Glass: Refer to Section 08 80 00, “Glass and Glazing” for glass materials.

1. #GL-3: Insulated, Decorative, Tempered Glass: Low-e coated, 1-inch thickness

2. #GL-4: Insulated, Ceramic-coated Spandrel Glass: Low-e coated, 1 inch thickness

3. #GL-5: Insulated, Decorative, Laminated Glass: Low-e coated, ¾-inch thickness

2.8 FABRICATION

A. Shop Assembly: Fabricate and assemble units with joints only at intersection of aluminum members with hairline joints; rigidly secure, and sealed in accordance with manufacturer’s recommendations.

2.9 FINISHES AND COLORS

A. Finish Type and Color:

1. High-performance organic coating

2. Color: Classic Bronze

B. Finishes Testing:

1. Apply 0.5% solution NaOh, sodium hydroxide, to small area of finished sample area;

leave in place for sixty minutes; lightly wipe off NaOh; Do not clean area further.

2. Submit samples with test area noted on each sample.

PART 3 EXECUTION

3.1 MANUFACTURER’S INSTRUCTIONS / RECOMMENDATIONS

A. Compliance: Comply with manufacturer’s product data, including product technical bulletins, installation instructions, and product carton instructions.

3.2 EXAMINATION

A. Site Verification of Conditions: Verify substrate conditions (which have been previously installed under other sections) are acceptable for product installation in accordance with manufacturer’s instructions.

3.3 PREPARATION

A. Adjacent Surfaces Protection: Protect adjacent work areas and finish surfaces from damage during product installation.

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3.4 INSTALLATION

A. General: Install manufacturer’s system in accordance with shop drawings, and within specified tolerances.

1. Protect aluminum members in contact with masonry, steel, concrete, or dissimilar materials using nylon pads or bituminous coating.

2. Shim and brace aluminum system before anchoring to structure.

3. Verify curtain wall system allows water entering system to be collected in gutters and wept to the exterior. Verify weep holes are open, and metal joints are sealed in accordance with manufacturers installation instructions.

4. System Perimeter Seals: Section 07 92 00, “Joint Sealants.”

3.5 FIELD QUALITY CONTROL

A. Manufacturer’s Field Services: Upon request, provide manufacturer’s field service consisting of site visit for inspection of product installation in accordance with manufacturer’s instructions.

B. Field Test: Conduct field test to determine watertightness of curtain wall system. Conduct test in accordance with ASTM E 1105, Procedure B for a minimum of 20 minutes.

3.6 ADJUSTING AND CLEANING

A. Adjusting: Adjust operating items as recommended by manufacturer. Adjust swing doors for operation in accordance with manufacturer's recommendations.

B. Cleaning: The General Contractor shall clean installed products in accordance with manufacturer’s instructions prior to Contracting Officer’s acceptance and remove construction debris from project site. Legally dispose of debris.

C. Protection: The Contractor shall protect installed product’s finish surfaces from damage during construction.

END OF SECTION 08 44 13