5-084413_Glazed_Aluminum_Curtain_Walls.pdf

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GLAZED ALUMINUM CURTAIN WALLS

SECTION 084413 GLAZED ALUMINUM CURTAIN WALLS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Glazed Aluminum Curtain Wall Systems, including perimeter trims, stools, accessories, shims and anchors, and perimeter sealing of curtain wall framing.

2. Entrance Doors and Hardware.

1.2 DEFINITIONS

A. Definitions: For fenestration industry standard terminology and definitions refer to American

Architectural Manufactures Association (AAMA) – AAMA Glossary (AAMA AG).

1.3 INFORMATIONAL SUBMITTALS

A. Qualification Data:

1. For Installer.

2. For professional engineer's experience with providing delegated-design engineering services of the kind indicated, including documentation that engineer is licensed in Illinois.

B. Product Data: For each type of product indicated. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes.

C. Shop Drawings: For glazed aluminum curtain walls. Include plans, elevations, sections, full-size details, and attachments to other work.

D. Samples for Initial Selection: For units with factory-applied color finishes.

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

F. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified preconstruction testing agency, for glazed aluminum curtain walls, indicating compliance with performance requirements.

G. Fabrication Sample: Of each vertical-to-horizontal intersection of aluminum-framed curtain wall systems, made from 12" (304.8 mm) lengths of full-size components and showing details of the following.

1. Joinery.

1. Glazing.

1.4 CLOSEOUT SUBMITTALS

A. Maintenance data.

1.5 QUALITY ASSURANCE

A. Installer Qualifications: Installer who has had successful experience with installation of the same or similar systems required for the project and other projects of similar size and scope.

B. Manufacturer Qualifications: A manufacturer capable of fabricating glazed aluminum curtain walls that meet or exceed performance requirements.

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C. Source Limitations: Obtain aluminum curtain wall system through one source from a single manufacturer.

D. Product Options: Information on Drawings and in Specifications establishes requirements for aesthetic effects and performance characteristics of assemblies. 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.

1. Do not modify 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.

E. Pre-installation Conference: Conduct conference at Project site to comply with requirements in Division 01.

1.6 PROJECT CONDITIONS

A. Field Measurements: Verify actual locations of structural supports for glazed aluminum curtain walls by field measurements before fabrication and indicate measurements on Shop Drawings.

1.7 WARRANTY

A. Manufacturer’s Warranty: Submit, for Owner’s acceptance, manufacturer’s standard warranty.

1. Warranty Period: Two (2) years from Date of Substantial Completion of the project provided however that the Limited Warranty shall begin in no event later than six months from date of shipment by manufacturer.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. General Performance: Comply with performance requirements specified, as determined by testing of glazed aluminum curtain walls representing those indicated for this Project without failure due to defective manufacture, fabrication, installation, or other defects in construction.

2. Glazed aluminum curtain walls shall withstand movements of supporting structure including, but not limited to, story drift, twist, column shortening, long-term creep, and deflection from uniformly distributed and concentrated live loads. Failure also includes the following.

a. Thermal stresses transferring to building structure.

b. Glass breakage.

c. Loosening or weakening of fasteners, attachments, and other components.

d. Failure of operating units.

B. Delegated Design: Design glazed aluminum curtain walls, including comprehensive engineering analysis by a qualified professional engineer, using performance requirements and design criteria indicated.

C. Wind loads: Provide Curtain Wall system; include anchorage, capable of withstanding wind load design pressures of 25 lbs./sq. ft., inward and outward. The design pressures are based on the International Building Code; 2015 Edition.

D. Air Infiltration: The test specimen shall be tested in accordance with ASTM E 283. Air infiltration rate shall not exceed 0.06 cfm/ft2 (0.3 l/s · m2) at a static air pressure differential of 6.2 psf (300 Pa).

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E. Water Resistance, (static): The test specimen shall be tested in accordance with ASTM E 331.

There shall be no leakage at a static air pressure differential of 12 psf (575 Pa) as defined in

AAMA 501.

F. Water Resistance, (dynamic): The test specimen shall be tested in accordance with AAMA 501.1.

There shall be no leakage at an air pressure differential of 12 psf (575 Pa) as defined in AAMA 501.

G. Uniform Load: A static air design load of 40 psf (1915 Pa) shall be applied in the positive and negative direction in accordance with ASTM E 330. There shall be no deflection in excess of L/175 of the span of any framing member at design load. At structural test load equal to 1.5 times the specified design load, no glass breakage or permanent set in the framing members in excess of 0.2% of their clear spans shall occur.

H. Energy Efficiency:

1. Thermal Transmittance (U-factor): When tested to AAMA Specification 1503, the thermal transmittance (U-factor) shall not be more than: 0.57 (clear glass) per NFRC 100.

I. Condensation Resistance (CRF): When tested to AAMA Specification 1503, the condensation resistance factor shall not be less than 68frame and 59glass (clear glass).

J. Sound Transmission Loss: When tested to ASTM E90, the Sound Transmission Class (STC) shall not be less than 31 and the outdoor-indoor transmission class (OITC) shall not be less than 25 based upon 1" (25.4) insulating glass (1/4" annealed, 1/2" argon, 1/4" annealed).

K. Windborne-Debris-Impact-Resistance Performance: Shall be tested in accordance with ASTM E 1886 and information in ASTM E 1996 and TAS 201/203.

1. Large – Missile Impact: For aluminum-framed systems located within 30 feet (9.1 m) of grade.

2. Small – Missile Impact: For aluminum-framed systems located above 30 feet (9.1 m) of grade.

2.1 MANUFACTURERS

A. Basis-of-Design Product.

1. Kawneer Company Inc..

2. 1600 Wall System2 Curtain Wall.

a. Frame depth options: 2-1/2" x 6" (63.5 x 152.4) or 2-1/2" x 7-1/2" (63.5 x 190.5) – as indicated, outside glazed, structural silicone glazed (SSG) format, with 1" (25.4) insulating glass and 1/4" (6.3) monolithic glazing.

3. Tested to AAMA 501, ASTM E 1886, E 1996 and TAS 201, 202, 203.

B. Subject to compliance with requirements, provide a comparable product by the following.

1. EFCO Corporation.

2. Oldcastle BuildingEnvelope.

3. Pittco Architectural Metals, Inc.

4. Tubelite Inc.

5. U.S. Aluminum; a brand of C.R. Laurence.

2.2 MATERIALS

A. Aluminum Extrusions: Alloy and temper recommended by glazed aluminum curtain wall manufacturer for strength, corrosion resistance, and application of required finish and not less than 0.070" (1.78) wall thickness at any location for the main frame and complying with ASTM B 221: 6063-T6 alloy and temper.

B. Aluminum sheet alloy: Shall meet the requirements of ASTM B209.

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C. Fasteners: Aluminum, nonmagnetic stainless steel or other materials to be non-corrosive and compatible with aluminum window members, trim hardware, anchors, and other components.

D. Anchors, Clips, and Accessories: Aluminum, nonmagnetic stainless steel, or zinc-coated steel or iron complying with ASTM B 633 for SC 3 severe service conditions or other suitable zinc coating; provide sufficient strength to withstand design pressure indicated.

E. Pressure Plate: Pressure plate shall be aluminum and fastened to the mullion with stainless steel screws.

F. Reinforcing Members: Aluminum, nonmagnetic stainless steel, or nickel/chrome-plated steel complying with ASTM B 456 for Type SC 3 severe service conditions, or zinc-coated steel or iron complying with ASTM B 633 for SC 3 severe service conditions or other suitable zinc coating; provide sufficient strength to withstand design pressure indicated.

G. Sealant: For sealants required within fabricated curtain wall system, provide permanently elastic, non-shrinking, and non-migrating type recommended by sealant manufacturer for joint size and movement.

H. Thermal Barrier: Thermal separator shall be extruded of a silicone compatible elastomer that provides a minimum 1/4" (6.3) separation.

I. Tolerances: Reference to tolerances for wall thickness and other cross-sectional dimensions of glazed curtain wall members are nominal and in compliance with AA Aluminum Standards and Data.

2.3 CURTAIN WALL FRAMING

A. Framing Members: Manufacturer's standard extruded- or formed-aluminum framing members of thickness required and reinforced as required to support imposed loads.

1. Glazing System: Structural silicone glazed (SSG).

2. Glazing Plane: Front.

B. Glass: 1" (25.4) and 1-5/16" (33.3) insulating glass option. 1/4" (6.3) or 1" (25.4) for Spandrel applications.

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

D. Framing Sealants: Shall be suitable for glazed aluminum curtain wall as recommended by sealant manufacturer.

E. Fasteners and Accessories: Manufacturer's standard corrosion-resistant, nonstaining, nonbleeding fasteners and accessories compatible with adjacent materials. Where exposed shall be stainless steel.

F. Perimeter Anchors: When steel anchors are used, provide insulation between steel material and aluminum material to prevent galvanic action.

G. Packing, Shipping, Handling and Unloading: Deliver materials in manufacturer's original, unopened, undamaged containers with identification labels intact.

H. Storage and Protection: Store materials protected from exposure to harmful weather conditions.

Handle curtain wall material and components to avoid damage. Protect curtain wall material against damage from elements, construction activities, and other hazards before, during and after installation.

2.4 GLAZING

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A. Glazing: Comply with Division 08 Section “Glazing” and the following.

1. Basis of Design: 1600 Wall System™2 Curtain Wall: Outside glazed, structural silicone glazed (SSG) format with 1" (25.4) insulating glass.

B. Glazing Gaskets: Gaskets to meet the requirements of ASTM C864.

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

D. Bond-Breaker Tape: Manufacturer's standard TFE-fluorocarbon or polyethylene material to which sealants will not develop adhesion.

E. Glazing Sealants: As recommended by manufacturer for joint type.

2.5 ENTRANCE DOOR SYSTEMS

A. Manufacturers: Provide doors fully compatible with manufacturer of curtain wall system. Subject to compliance with requirements, provide products by one of the following:

1. EFCO Corporation.

2. Kawneer North America, an Arconic company.

3. Pittco Architectural Metals, Inc.

4. Tubelite Inc.

5. U.S. Aluminum; a brand of C.R. Laurence.

B. Entrance Doors: All glass entrance doors for manual-swing or automatic operation.

C. Door Design: As indicated.

D. Rails:

1. Basis of Design: C. R. Laurence Wedgelock door rails

2. Size: As indicated

3. Finish: Clear Anodized, match curtainwall framing

1.2 ENTRANCE DOOR HARDWARE

A. Entrance Door Hardware: Hardware not specified in this Section is specified in Section 087100 "Door Hardware."

B. General: Provide entrance door hardware and entrance door hardware sets indicated in "Entrance Door Hardware Sets" Article for each entrance door, to comply with requirements in this Section.

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. Sequence of Operation: Provide electrified door hardware function, sequence of operation, and interface with other building control systems indicated.

3. Opening-Force Requirements:

a. Egress Doors: Not more than 15 lbf (67 N) to release the latch and not more than 30 lbf (133 N) to set the door in motion.

b. Accessible Interior Doors: Not more than 5 lbf (22.2 N) to fully open door.

C. Designations: Requirements for design, grade, function, finish, quantity, size, and other distinctive qualities of each type of entrance door hardware are indicated in "Entrance Door Hardware Sets" Article.

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1. Basis of Design: C. R. Laurence operating hardware intended for use on manufacturer’s all glass door system.

a. Entrance door hardware sets provided represent the design intent, they are only a guideline and should not be considered a detailed or complete hardware schedule.

b. Provide entrance door hardware item(s) as required for similar purposes, even when item is not listed for a door in Entrance Door Hardware Schedule.

c. Necessary items that are not included in a Entrance Hardware Set should be added and have the appropriate additional hardware as required for proper application and functionality.

d. Entrance Door hardware supplier is responsible for providing proper size and hand of door for products required in accordance with Entrance Door Hardware Schedule and as indicated on drawings.

D. Pivot Hinges: BHMA A156.4, Grade 1.

1. Offset-Pivot Hinges: Provide top, bottom, and intermediate offset pivots at each door leaf.

E. Mortise Auxiliary Locks: BHMA A156.5, Grade 1.

F. Cylinders & Keying:

1. As specified in Section 087100 "Door Hardware."

2. BHMA A156.5, Grade 1.

G. Operating Trim: BHMA A156.6.

H. Closers: BHMA A156.4, Grade 1, with accessories required for a complete installation, sized as required by door size, exposure to weather, and anticipated frequency of use; adjustable to comply with field conditions and requirements for opening force.

I. Concealed Overhead Holders and Stops: BHMA A156.8, Grade 1.

J. Weather Stripping: Manufacturer's standard replaceable components.

1. Compression Type: Made of ASTM D2000 molded neoprene or ASTM D2287 molded

PVC.

2. Sliding Type: AAMA 701/702, 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 (12.7 mm).

2.6 ACCESSORY MATERIALS

A. Bituminous Paint: Cold-applied asphalt-mastic paint complying with SSPC-Paint 12 requirements except containing no asbestos, formulated for 30-mil (0.762 mm) thickness per coat.

2.7 FABRICATION

A. Form or extrude aluminum shapes before finishing.

B. Fabricate components that, when assembled, have the following characteristics.

1. Profiles that are sharp, straight, and free of defects or deformations.

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2. Accurately fitted joints.

3. Physical and thermal isolation of glazing from framing members.

4. Accommodations for thermal and mechanical movements of glazing and framing to maintain required glazing edge clearances.

5. Provisions for field replacement of glazing from exterior.

6. Fasteners, anchors, and connection devices that are concealed from view to greatest extent possible.

7. Internal weeping system or other means to drain water passing joints, condensation occurring within framing members, and moisture migrating within glazed aluminum curtain wall to exterior.

C. Curtain Wall Framing: Fabricate components for assembly using shear block system following manufacturer's standard installation instructions.

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

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

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

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

2.8 ALUMINUM FINISHES

A. Finish designations prefixed by AA comply with the system established by the Aluminum

Association for designating aluminum finishes.

B. Factory Finishing.

1. Clear Anodic Finish: AAMA 611, AA-M12C22A41, Class I, 0.018 mm

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas, 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: Install curtain wall systems plumb, level, and true to line, without warp or rack of frames with manufacturer’s prescribed tolerances and installation instructions. Provide support and anchor in place.

1. Dissimilar Materials: Provide separation of aluminum materials from sources of corrosion or electrolytic action contact points.

2. Glazing: Glass shall be outside glazed and held in place with extruded aluminum pressure plates anchored to the mullion using stainless steel fasteners spaced no greater than 9" (228.6) on center.

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3. Water Drainage: Each light of glass shall be compartmentalized using joint plugs and silicone sealant to divert water to the horizontal weep locations. Weep holes shall be located in the horizontal pressure plates and covers to divert water to the exterior of the building.

B. 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.

C. Related Products Installation Requirements.

1. Sealants (Perimeter): Refer to Joint Treatment (Sealants) Section.

2. Glass: Refer to Glass and Glazing Section.

a. Reference: ANSI Z97.1, CPSC 16 CFR 1201 and GANA Glazing Manual.

3.3 FIELD QUALITY CONTROL

A. Testing Agency: Contractor will engage a qualified testing agency to perform tests and inspections.

B. Field Tests: Architect shall select curtain wall units to be tested as soon as a representative portion of the project has been installed, glazed, perimeter caulked and cured. Conduct tests for air infiltration and water penetration with manufacturer’s representative present. Tests not meeting specified performance requirements and units having deficiencies shall be corrected as part of the contract amount.

1. Testing: Testing shall be performed per AAMA 503 by a qualified independent testing agency. Refer to Testing Section for payment of testing and testing requirements.

a. Air Infiltration Tests: Conduct tests in accordance with ASTM E 783. Allowable air infiltration shall not exceed 1.5 times the amount indicated in the performance requirements or 0.09 cfm/ft2, which ever is greater.

b. Water Infiltration Tests: Conduct tests in accordance with ASTM E 1105. No uncontrolled water leakage is permitted when tested at a static test pressure of two-thirds the specified water penetration pressure but not less than 8 psf (383 Pa).

C. Manufacturer’s Field Services: Upon Contracting Officer’s written request, provide periodic site visit by manufacturer’s field service representative.

3.4 ADJUSTING, CLEANING AND PROTECTION

A. Protection: Protect installed product’s finish surfaces from damage during construction. Protect aluminum curtain wall system from damage from grinding and polishing compounds, plaster, lime, acid, cement, or other harmful contaminants.

B. Cleaning: Repair or replace damaged installed products. Clean installed products in accordance with manufacturer’s instructions prior to owner’s acceptance. Remove construction debris from project site and legally dispose of debris.

C. Remove and replace glass that has been broken, chipped, cracked, abraded, or damaged during construction period.

1.3 ENTRANCE DOOR HARDWARE SETS

A. Finish: exposed finish of all entrance door hardware to match entrance door frames

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HARDWARE SET # 1

A. Type: Exterior Entrance Door – Pair B. Location: Doors 01 and 06 C. Intended operation: Auto Operator, dogged free to open during business hours, locked from exterior during non-business hours. Always free to exit.

ITEM DESCRIPTION

HINGES C. R. Laurence (CRL) Heavy duty pivot hinges EXTERIOR PULL 24” straight, 1” round ladder pull EXIT DEVICE CRL Blumcraft D-BP, keyed dogging LOCKSET (ELECTRONIC) CRL electromagnetic lock for use WITH NPS CARD KEY.

Fail Secure.

CYLINDERS CRL keyed cylinder, key per Section 08 71 00 CLOSER/AUTO OPERATOR CRL Heavy Duty Overhead Concealed Closer/Auto Operator THRESHOLD CRL Half saddle threshold with thermal break. Coordinate installation with recessed entrance mat WEATHER-STRIPING CRL Standard Weather-Striping at all door edges

HARDWARE SET # 2

A. Type: Interior Vestibule Door – Pair B. Location: Doors 03 and 05 C. Intended operation: Auto Operator, dogged free to open during business hours, ability to lock access from exterior as necessary. Always free to exit.

ITEM DESCRIPTION

HINGES C. R. Laurence (CRL) Heavy duty pivot hinges EXTERIOR PULL 24” straight, 1” round ladder pull EXIT DEVICE CRL Blumcraft D-BP, keyed dogging CYLINDERS CRL keyed cylinder, key per Section 08 71 00 CLOSER/AUTO OPERATOR CRL Heavy Duty Overhead Concealed Closer/Auto Operator THRESHOLD CRL accessible saddle threshold WEATHER-STRIPING CRL Standard Weather-Striping at all door edges

END OF SECTION 084413

END OF SECTION 084413