085113 - ALUMINUM WINDOWS.DOC

UNIT TRAINING EQUIPMENT SITE ADD/ALTER

Copyright 2010 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

SECTION 085113 - ALUMINUM WINDOWS

Revise this Section by deleting and inserting text to meet Project-specific requirements.

This Section uses the term "Architect." Change this term to match that used to identify the design professional as defined in the General and Supplementary Conditions.

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

Retain or delete this article in all Sections of Project Manual.

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes aluminum windows for exterior locations.

1.3 PREINSTALLATION MEETINGS

Retain "Preinstallation Conference" Paragraph below if Work of this Section is extensive or complex enough to justify a conference.

A. Preinstallation Conference: Conduct conference at Project site.

Retain subparagraphs below if required. If retaining, revise to include product-specific requirements.

1. Review and finalize construction schedule and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

2. Review and discuss the finishing of aluminum windows that is required to be coordinated with the finishing of other aluminum work for color and finish matching.

3. Review, discuss, and coordinate the interrelationship of aluminum windows with other exterior wall components. Include provisions for anchorage, flashing, sealing perimeters, and protecting finishes.

4. Review and discuss the sequence of work required to construct a watertight and weathertight exterior building envelope.

5. Inspect and discuss the condition of substrate and other preparatory work performed by other trades.

If needed, insert list of conference participants not mentioned in Section 013100 "Project Management and Coordination."

1.4 ACTION SUBMITTALS

A. Product Data: For each type of product.

1. Include construction details, material descriptions, glazing and fabrication methods, dimensions of individual components and profiles, hardware, and finishes for aluminum windows.

B. Shop Drawings: Include plans, elevations, sections, hardware, accessories, insect screens, operational clearances, and details of installation, including anchor, flashing, and sealant installation.

Retain "Samples" Paragraph below for single-stage Samples, with a subordinate list if applicable. Retain "Samples for Initial Selection" and "Samples for Verification" paragraphs for two-stage Samples.

C. Samples for Verification: For aluminum windows and components required, showing full range of color variations for finishes, and prepared on Samples of size indicated below:

1. Exposed Finishes: 2 by 4 inches (50 by 100 mm).

1.5 INFORMATIONAL SUBMITTALS

Coordinate "Qualification Data" Paragraph below with qualification requirements in Section 014000 "Quality Requirements" and as may be supplemented in "Quality Assurance" Article.

A. Qualification Data: For Installer.

Retain "Field quality-control reports" Paragraph below if Contractor is responsible for field quality-control testing and inspecting.

B. Sample Warranties: For manufacturer's warranties.

1.6 QUALITY ASSURANCE

A. Manufacturer Qualifications: A manufacturer capable of fabricating aluminum windows that meet or exceed performance requirements indicated and of documenting this performance by test reports, and calculations.

B. Installer Qualifications: An installer acceptable to aluminum window manufacturer for installation of units required for this Project.

Coordinate "Mockups" Paragraph below with air barrier Sections for building and preconstruction testing of integrated wall mockups that include windows; insert additional requirements if applicable.

Insert "Field Conditions" Article and requirements for field measurements for existing construction that requires custom-fabricated window replacements.

1.7 WARRANTY

When warranties are required, verify with Owner's counsel that warranties stated in this article are not less than remedies available to Owner under prevailing local laws.

A. Manufacturer's Warranty: Manufacturer agrees to repair or replace aluminum windows that fail in materials or workmanship within specified warranty period.

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

a. Failure to meet performance requirements.

b. Structural failures including excessive deflection, water leakage, condensation, and air infiltration.

c. Faulty operation of movable sash and hardware.

d. Deterioration of materials and finishes beyond normal weathering.

e. Failure of insulating glass.

Verify available warranties and warranty periods for units and components. Some manufacturers might insist that warranty periods begin on date of manufacture or sale.

2. Warranty Period:

a. Window: 10 years from date of Substantial Completion.

Warranty period for glazing units varies by type.

b. Glazing Units: 10 years from date of Substantial Completion.

Warranty period for aluminum finish depends on type. Baked-on enamel finishes often have 10-year warranties; high-performance fluoropolymer finishes often have 20-year warranties.

c. Aluminum Finish: 20 years from date of Substantial Completion.

PART 2 - PRODUCTS

See Editing Instruction No. 1 in the Evaluations in Section 085000 "Windows" for cautions about named manufacturers and products. For an explanation of options and Contractor's product selection procedures, see Section 016000 "Product Requirements."

2.1 MANUFACTURERS

Retain "Manufacturers" Paragraph and list of manufacturers below to require products from manufacturers listed or a comparable product from other manufacturers.

A. Basis-of-Design for Exterior Window Product: Subject to compliance with requirements, provide Kawneer North America; 8225TL Isolock or comparable product by one of the following:

1. Kawneer North America; an Alcoa company.

Retain "Basis-of-Design Product" Paragraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed. Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

Retain manufacturers in list below after verifying availability and suitability of products for application indicated. Insert other manufacturers if required.

2. Graham Architectural Products Corp.

3. TRACO.

4. Or approved equal.

B. Source Limitations: Obtain aluminum windows from single source from single manufacturer.

2.2 WINDOW PERFORMANCE REQUIREMENTS

See the Evaluations in Section 085000 "Windows" for discussions of performance requirements. Coordinate performance requirements with types of window operation (e.g., casement or double hung), glass type, and other variables. If performance requirements vary among operating types of windows, insert language to differentiate requirements among window types or show requirements in a schedule on Drawings.

A. Product Standard: Comply with AAMA/WDMA/CSA 101/I.S.2/A440 for definitions and minimum standards of performance, materials, components, accessories, and fabrication unless more stringent requirements are indicated.

Retain requirements for AAMA certification and labeling if needed. Not all manufacturers that test products according to AAMA/WDMA/CSA 101/I.S.2/A440 requirements participate in AAMA's third-party certification program for listing and labeling aluminum windows.

1. Window Certification: AMMA certified with label attached to each window.

B. Performance Class and Grade: AAMA/WDMA/CSA 101/I.S.2/A440 as follows:

1. Minimum Performance Class: CW.

AAMA/WDMA/CSA 101/I.S.2/A440 establishes a gateway Performance Grade for windows to qualify for each Performance Class. The gateway Performance Grade is 15 for Class R, 25 for Class LC, 30 for Class CW, and 40 for Class AW. For a particular project, the minimum Performance Grade for windows is typically based on the design pressure.

2. Minimum Performance Grade: 90.

Retain "Thermal Transmittance" Paragraph below if required to comply with requirements of authorities having jurisdiction. Options below are based on Energy Star requirements effective January 2010. First option is for Northern Climate Zone, second is for North-Central Climate Zone, third is for South-Central Climate Zone, and fourth is for Southern Climate Zone.

C. Thermal Transmittance: When tested in accordance with AAMA 1503, the conductive thermal transmittance (U-Factor) shall not be more than 0.58 BTU/hr/sf/F.

Options in "Solar Heat-Gain Coefficient (SHGC)" Paragraph below are based on Energy Star requirements effective January 2010. First option is for North-Central Climate Zone, second is for South-Central climate zone, and third is for Southern Climate zone.

CRFs are typically between 45 and 75. First option in "Condensation-Resistance Factor (CRF)" Paragraph below is suitable for most of the U.S. at 25 percent relative humidity where outdoor design temperature is below 0 deg F (minus 18 deg C); second option is suitable for same relative humidity at minus 10 deg F (minus 23 deg C). In northern states where winter outdoor design temperature is lower, increase factor. If buildings have mechanically controlled humidification, coordinate CRF with design conditions for humidity level. See AAMA 1503.

D. Condensation-Resistance Factor (CRF): Provide aluminum windows tested for thermal performance according to AAMA 1503, showing a CRF of 57.

E. Thermal Movements: Provide aluminum windows, including anchorage, that allow for thermal movements resulting from the following maximum change (range) in ambient and surface temperatures by preventing buckling, opening of joints, overstressing of components, failure of joint sealants, failure of connections, and other detrimental effects. Base engineering calculation on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss.

Differential values in "Temperature Change" Subparagraph below (for aluminum in particular) are suitable for most of the U.S.

1. Temperature Change: 120 deg F (67 deg C), ambient; 180 deg F (100 deg C) material surfaces.

CRFs are typically between 45 and 75. First option in "Condensation-Resistance Factor (CRF)" Paragraph below is suitable for most of the U.S. at 25 percent relative humidity where outdoor design temperature is below 0 deg F (minus 18 deg C); second option is suitable for same relative humidity at minus 10 deg F (minus 23 deg C). In northern states where winter outdoor design temperature is lower, increase factor. If buildings have mechanically controlled humidification, coordinate CRF with design conditions for humidity level. See AAMA 1503.

2.3 ALUMINUM WINDOWS

A. Operating Types: Provide the following operating types in locations indicated on Drawings:

1. Fixed.

AAMA/WDMA/CSA 101/I.S.2/A440 includes requirements for aluminum, thermal breaks, and other materials and window components. If more stringent requirements apply, insert them in this article.

B. Frames and Sashes: Aluminum extrusions complying with AAMA/WDMA/CSA 101/I.S.2/A440.

1. Thermally Improved Construction: Fabricate frames, sashes, and muntins with an integral, concealed, low-conductance thermal barrier located between exterior materials and window members exposed on interior side in a manner that eliminates direct metal-to-metal contact.

Retain "Glass" or "Insulating-Glass Units" Paragraph below to suit Project, or revise if other type of glazing unit is necessary.

Retain option in "Insulating-Glass Units" Paragraph below after verifying that manufacturers obtain glass units from glass manufacturers that participate in the IGCC program.

C. Insulating-Glass Units: ASTM E 2190, certified through IGCC as complying with requirements of IGCC.

1. Glass: ASTM C 1036, Type 1, Class 1, q3.

a. Tint: To match existing.

b. Kind: Fully tempered.

2. Lites: Two.

3. Filling: Fill space between glass lites with argon.

4. Low-E Coating: Pyrolytic on second surface.

Retain "Integral Louver Blinds" Subparagraph below if required. Verify availability with manufacturers.

D. Glazing System: Manufacturer's standard factory-glazing system that produces weathertight seal.

If retaining "Dual Glazing" Subparagraph below, verify availability with manufacturers.

Nonmagnetic stainless steel, Series 300, or a superior corrosion-resistant-coated metal may be required to meet specific customer or regional needs and for protection against corrosive environments, such as in urban, coastal, or industrial areas.

E. Weather Stripping: Provide full-perimeter weather stripping for each operable sash unless otherwise indicated.

F. Fasteners: Noncorrosive and compatible with window members, trim, hardware, anchors, and other components.

Generally retain "Exposed Fasteners" Subparagraph below. Revise if exposed fasteners are permitted.

1. Exposed Fasteners: Do not use exposed fasteners to the greatest extent possible. For application of hardware, use fasteners that match finish hardware being fastened.

2.4 ACCESSORIES

A. Subsills: Thermally broken, extruded-aluminum subsills.

B. Receptor System: Two-piece, snap-together, thermally broken, extruded-aluminum receptor system that anchors windows in place.

Insert other accessories, such as nail fins, if required.

2.5 FABRICATION

A. Fabricate aluminum windows in sizes indicated. Include a complete system for assembling components and anchoring windows.

B. Glaze aluminum windows in the factory.

C. Weather strip each operable sash to provide weathertight installation.

D. Weep Holes: Provide weep holes and internal passages to conduct infiltrating water to exterior.

Retain first paragraph below for lines where sash frames lap the wrong way to shed water.

E. Provide water-shed members above side-hinged sashes and similar lines of natural water penetration.

Retain "Mullions" Paragraph below if required for Project.

Bow and bay window assemblies usually contain casement, double-hung, or fixed window units.

2.6 GENERAL FINISH REQUIREMENTS

A. Comply with NAAMM's "Metal Finishes Manual" for recommendations for applying and designating finishes.

B. Protect mechanical finishes on exposed surfaces from damage by applying a strippable, temporary protective covering before shipping.

C. Appearance of Finished Work: Variations in appearance of abutting or adjacent pieces are acceptable if they are within one-half of the range of approved Samples. Noticeable variations in the same piece are not acceptable. Variations in appearance of other components are acceptable if they are within the range of approved Samples and are assembled or installed to minimize contrast.

2.7 ALUMINUM FINISHES

A. Finish designations prefixed by AA comply with the system established by the Aluminum Association for designating aluminum finishes.

Retain finishes in this article to suit Project. If retaining more than one, indicate location of each on Drawings, in a window schedule, or by inserts. Verify availability with manufacturers.

"Class II, Clear Anodic Finish" Paragraph below is standard finish with many manufacturers. Finish has a minimum coating thickness of 0.4 mil (0.010 mm).

"Class I, Color Anodic Finish" Paragraph below is heavy-anodized finish. Finish has a minimum coating thickness of 0.7 mil (0.018 mm).

B. Class I, Color Anodic Finish: AA-M12C22A42/A44 (Mechanical Finish: nonspecular as fabricated; Chemical Finish: etched, medium matte; Anodic Coating: Architectural Class I, integrally colored or electrolytically deposited color coating 0.018 mm or thicker) complying with AAMA 611.

1. Color: Dark bronze to match existing.

Options in "Color" Subparagraph above are examples only and may vary in color range and availability among manufacturers. Retain one or delete all and retain one of three options in "Color" Subparagraph below.

Revise "Baked-Enamel Finish" Paragraph below if specific products are required, or revise to suit manufacturers' finishes such as siliconized acrylic or polyester enamels or powder coatings. Some powder-coating systems might comply with the more stringent requirements in AAMA 2604; consult manufacturers.

"High-Performance Organic Finish (Two-Coat Fluoropolymer)" Paragraph below references AAMA standards for high-performance and superior performance organic coatings on extrusions and panels. Revise if specific products are required. Consult manufacturers for AAMA compliance and for percentage of polyvinylidene fluoride in their finishes.

For exact finish, insert names of coating manufacturers and products.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine openings, substrates, structural support, anchorage, and conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of the Work.

B. Verify rough opening dimensions, levelness of sill plate, and operational clearances.

C. Examine wall flashings, vapor retarders, water and weather barriers, and other built-in components to ensure weathertight window installation.

Always retain paragraph below.

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

3.2 INSTALLATION

A. Comply with manufacturer's written instructions for installing windows, hardware, accessories, and other components. For installation procedures and requirements not addressed in manufacturer's written instructions, comply with installation requirements in ASTM E 2112.

B. Install windows level, plumb, square, true to line, without distortion or impeding thermal movement, anchored securely in place to structural support, and in proper relation to wall flashing and other adjacent construction to produce weathertight construction.

C. Install windows and components to drain condensation, water penetrating joints, and moisture migrating within windows to the exterior.

D. Separate aluminum and other corrodible surfaces from sources of corrosion or electrolytic action at points of contact with other materials.

3.3 ADJUSTING, CLEANING, AND PROTECTION

A. Clean exposed surfaces immediately after installing windows. Avoid damaging protective coatings and finishes. Remove excess sealants, glazing materials, dirt, and other substances.

1. Keep protective films and coverings in place until final cleaning.

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

C. Protect window surfaces from contact with contaminating substances resulting from construction operations. If contaminating substances do contact window surfaces, remove contaminants immediately according to manufacturer's written instructions.

END OF SECTION 085113