085113-revised on Sept 9 2010.doc

ATTACHMENT 1

FA4626-10-R-0021

REMODEL DORM 740

PROJECT NZAS 04-1041

MALMSTROM AIR FORCE BASE

SECTION 085113 - ALUMINUM BLAST RESISTANT WINDOWS

PART 1 - GENERAL

1.1 WORK INCLUDED

A. Furnish and install aluminum architectural windows complete with hardware and related items as shown on Drawings and specified in this Section.

B. Basis of design product: Subject to compliance with requirements, provide Wausau 2250i-BHM Series Blast Hazard Mitigation Fixed & Awning windows or approved equal. Other manufacturers requesting approval to bid their product as an equal must submit the following:

1. A sample window (size and configuration) as per requirements of architect.

2. Test reports documenting compliance with requirements of Section 1.5.

C. Glass and glazing:

1. All units are to be factory glazed.

2. Reference Section 08800 for Glass and Glazing.

D. Provide 6 addition 3 foot - 0 inch by 4 foot - 0 inch high windows for Fire Department to use for practice.

1.2 TESTING AND PERFORMANCE REQUIREMENTS

A. Test Units:

1. Air, water and structural test unit sizes and configuration shall conform to requirement set forth in AAMA 101-97.

2. Blast Resistance shall conform to UFC 4-010-01 and B-3.1 Standard 10.

3. B-3.1 Standard 10. Windows, Skylights, and Glazed Doors. To minimize hazards from flying glass fragments, apply the provisions for glazing and window, skylight, and glazed door frames below for all new and existing inhabited buildings covered by these standards. Glazing and frames must work as a system to ensure that their hazard mitigation is effective. These provisions apply even if the minimum standoff distances are met. The specific requirements below, provided conventional standoff distances are met, will result in windows, skylights, and glazed doors that comply with this standard for windows provided their visual glazing openings do not exceed 3 square meters (32 square feet). For larger windows, refer to the DoD Security Engineering Design Manual.

4. B-3.1.1 Glazing. Use a minimum of 6-mm (1/4-in) nominal laminated glass for all exterior windows, skylights, and glazed doors. The 6-mm (1/4-in) laminated glass consists of two nominal 3-mm (1/8-in) glass panes bonded together with a minimum of a 0.75-mm (0.030-inch) polyvinyl-butyral (PVB) interlayer. For insulating glass units, use 6 mm (1/4 inch) laminated glass inner pane as a minimum and use 6 mm (3/16-inch) annealed glass outer pane as a minimum. For glazing alternatives to the 6-mm (1/4-in) laminated glass that provide equivalent levels of protection, refer to the DoD Security Engineering Design Manual.

5. B-3.1.2 Window and Glazed Door Frames. Provide window frames, mullions, and sashes and door rails and stiles of aluminum or steel as detailed below. Alternatively, use frames that provide performance to the required level of protection (see Tables 2.1 and 2.2). For existing buildings, complying with this standard may require replacement or significant modification of window frames, anchorages, and supporting elements.

6. B-3.1.2.1 Frame Member Design. Steel members may be designed using ultimate yield stresses and aluminum members may be designed based on a 0.2% offset yield strength. Equivalent static design loads for the window, skylight, and door members shall be 7 kilopascals (1 lb per square in) applied to the surface of the glazing and frame Deformations shall not exceed 1/60 of the unsupported member lengths. B-9 UFC 4-010-01 8 October 2003.

7. B-3.1.2.2 Glazing Frame Bite. The glazing shall have a minimum frame bite of 9.5-mm (3/8-in) for structurally glazed systems and 25-mm (1-in) for window systems that are not structurally glazed.

8. B-3.1.2.3 Connection Design. Equivalent static design loads for connections of the window or doorframe to the surrounding walls or roof, hardware and associated connections, and glazing stop connections shall be 75 kilopascals (10.8 lbs per square inch) for glazing panels with a vision area less than or equal to 1.0 square meters (10.8 square feet) and 30 kilopascals (4.4 lbs per square inch) for glazing panels with a vision area greater than 1.0 square meters (10.8 square feet) but less than or equal to 3.0 square meters (32 square feet). Loads shall be applied to the surface of the glazing and frame. Connections and hardware may be designed based on ultimate strength for steel and 0.2% offset yield strength for aluminum.

9. B-3.1.2.4 Supporting Structural Elements. Design supporting wall and roof elements and their connections based on their ultimate capacities. In addition, because the resulting dynamic loads are likely to be dissipated through multiple mechanisms, it is not necessary to account for reactions from the supporting wall or roof elements in the design of the remainder of the structure.

10. B-3.1.3 Mitigation. Where the minimum standoff distances cannot be met, provide glazing and frames that will provide an equivalent level of protection to that provided by the glazing and frames as described above and in Tables 2-1 and 2-2 for the applicable explosive weight in Table B-1.

11. B-3.1.4 Window and Glazed Door Replacement Projects. Whenever window or door glazing is being replaced in existing inhabited buildings as part of a planned window or glazing replacement project, whether or not the building meets the triggers in paragraph 1-6.2, install glazing and frames that meet all of the requirements above.

B. Test Procedures and Performance Standards:

1. Windows shall conform to all ANSI/AAMA 101-97 requirements.

2. Air Infiltration Test:

a. With window sash and ventilators closed and locked, test unit in accordance with ASTM E 283 at static air pressure of 6.24 psf.

b. Air infiltration shall not exceed .03 cfm per foot of perimeter crack length.

3. Water Resistance Test:

a. With window sash and ventilators closed and locked, test unit in accordance with ASTM E 331 at static pressure difference of 12.00 psf.

b. There shall be no uncontrolled water leakage.

4. Uniform Load Deflection Test:

a. With window sash and ventilators closed and locked, test unit in accordance with ASTM E 330 at a static air pressure difference (positive and negative) of 80 psf.

b. During the course of the test, no member shall deflect more than 1/175 of its span.

5. Uniform Load Structural Test:

a. With window sash and ventilators closed and locked, test unit in accordance with ASTM E 330 at a static air pressure difference of 120 psf.

b. At conclusion of test there shall be no glass breakage, permanent damage to fasteners, hardware parts, support arms or actuating mechanisms, nor any other damage which would cause the window to be inoperable.

6. Life Cycle Test:

a. Tested in accordance with AAMA 910, there shall be no damage to fasteners, parts, support arms, activating mechanisms, or any other damage which would make the window inoperable. Subsequent air infiltration and water resistance tests shall not exceed specified requirements.

7. Condensation Resistance Test (CRF):

a. With window sash and ventilators closed and locked, test unit in accordance with AAMA 1502.7.

b. Condensation Resistance Factor (CRF) shall be not less than 60.

8. Thermal Transmittance Test (Conductive U-value):

a. With window sash and ventilators closed and locked, test unit in accordance with AAMA 1503.1.

b. Conductive thermal transmittance (u-value) shall be not more than .48 BTU/hr/sf/F0.

9. Blast Resistance:

a. Windows and frames shall meet requirements of UFC-4-010-01 for design and structural performance.

1.3 QUALITY ASSURANCE

A. Provide test reports from AAMA accredited laboratories certifying the performance as specified in 1.5.

B. Test reports shall be accompanied by the window manufacturer’s letter of certification stating that the tested window meets or exceeds the referenced criteria for the appropriate ANSI/AAMA 101-97 window types.

C. Provide test reports or certified calculations showing the product meets the requirements of Standard 10, Appendix B, UFC 4-010-01 for the specific project application.

1.4 SUBMITTALS

A. High-light all descriptive literature to accomplish identification of specific components/items which are proposed to be furnished. Government will not react to descriptive material/literature which has not been hi-lited, except to reject the Submittal.

B. Product Data: Manufacturer’s specifications, recommendations and standard details for window units.

C. Shop Drawings: Include typical unit elevations, full- or half-scaled detail sections and typical installation details reviewed and approved by a professional engineer familiar with blast loads. Include type of glazing, screening, and window finish, size, and spacing of required fasteners.

D. Finish Samples: Two samples of each required finish, on an extruded shape of aluminum sheet.

E. Samples: If required by Architect, submit samples showing fabrication techniques, workmanship of component parts, design of hardware, and other exposed auxiliary items.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Store and handle windows and other components in strict compliance with manufacturer’s instructions.

B. Protect units against damage from the elements, construction activities and other hazards before, during, and after installation.

1.6 WARRANTY

A. The responsible contractor shall assume full responsibility and warrant for one year the satisfactory performance of the total window installation which includes that of the windows, hardware, glass (including insulated units), glazing, anchorage and setting system, sealing, flashing, etc. as it relates to air, water and structural adequacy as called for in the specifications and approved shop drawings. Any deficiencies due to such elements not meeting the Specifications shall be corrected by the responsible Contractor at his/her expense during the warranty period.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Aluminum:

1. Extruded aluminum shall be 6063-T5 alloy and temper.

B. Hardware:

1. Projected Ventilators:

a. Butt hinges as specified, Anti-rotational cam locking handles, friction holdopens and/or limit stops.

Delete Section 2.1.B.2

2. Single-hung Windows:

a. Self-balanced operation with stainless steel aircraft cables, sealed-bearing pulleys, and cam locks.

3. Provide hardware of sufficient strength to withstand maximum blast pressure.

C. Weatherstrip:

1. Replace existing with "Bulb or fin type neoprene, EPDM, Dual-Durometer PVC, Polypropylene, TPE or other suitable material as tested and approved by window manufacturer.

D. Glass and Glazing:

1. As specified in Section 088000 as calculated by a professional engineer.

E. Thermal Barrier:

1. Thermal barrier material shall be poured-in-place two part polyurethane, and shall be skip-debridged for structural integrity under blast loads.

2. Specified hardware shall not bridge the thermal barrier.

2.2 FABRICATION

A. General:

1. Aluminum frame and sash extrusion shall have a nominal wall thickness of 0.125-inch.

2. Mechanical fasteners, welded components and hardware items shall not bridge thermal barriers. Thermal barriers shall align at all frame and sash corners.

3. Depth of frame and sash combined shall not be less than 3-1/4 inch.

B. Frame:

1. Frame components shall be mitered or butt jointed, as appropriate to the type of construction required. All joints shall be welded or incorporate mechanical fasteners.

C. Sash:

1. All sash extrusions shall be tubular.

2. Each corner shall be mitered and welded or reinforced with an extruded aluminum corner key, hydraulically crimped with an epoxy adhesive.

3. Each sash shall have two rows of Monsanto Santoprene weatherstripping installed in specially designed dovetail grooves in all four sides of the sash extrusion.

D. Screens:

1. Screen frames shall be extruded or roll formed aluminum.

2. Screen mounting holes in the window frames shall be factory drilled.

3. Screen mesh shall be aluminum or fiberglass.

E. Glazing:

1. Shop and Field glazed units are to be structurally glazed with silicone per recommendation by an engineer familiar with blast loads. Glass stops shall be mechanically applied with no exposed fasteners.

F. Finish:

1. Anodic:

a. Finish all exposed areas of aluminum windows and components with electrolytically deposited color in accordance with Aluminum Association Designation:

AA Description

Description

AAMA Guide Spec.

AA-M12-C22-A31/41 II/I Clear Anod.

AAMA 607.1

AA-M12-C22-A34/44 II/I Color Anod.

AAMA 608.1*

b. Color is to be Dark Bronze.

c. *Available colors are light bronze, champagne, medium bronze, dark bronze, and black.

2. Organic:

a. Finish all exposed areas of aluminum windows and components with *Enter Description and AA Designation*

AA Description Description

AAMA Guide Spec.

AA-M12-C42-R1X

Kynar 500(r)/Hylar5000(tm)

Fluropon

2605-98

Kynar(r)/Hylar(tm) Acroflur(r) 2604-98

Flurocryl(tm)

2603-98

b. Color is to be Dark Bronze.

PART 3 - EXECUTION

3.1 INSPECTION

A. Job Conditions:

1. Verify that openings are dimensionally within allowable tolerances, plumb, level, contain solid anchoring surfaces and are in accordance with approved Shop Drawings.

3.2 INSTALLATION

A. Done in accordance with structural calculations signed and stamped by an engineer familiar with blast loads.

B. Anchoring fasteners shall be installed in accordance with calculations signed and stamped by an engineer familiar with blast loads.

C. Use only skilled tradesman with work done in accordance with approved Shop Drawings and Specifications.

D. Plumb and align window faces in a single plane for each wall plane. Erect windows and materials square and true, adequately anchored to maintain positions permanently when subjected to normal thermal and building movement and specified wind loads.

E. Adjust windows for proper operation after installation.

F. Furnish and apply sealants to provide a weathertight installation at all joints and intersections and at opening perimeters. Wipe off excess material and leave all exposed surfaces and joints clean and smooth.

3.3 ADJUSTING AND CLEANING

A. After completion of window installation, windows shall be inspected, put into working order and left clean, free of labels, dirt, etc. Protection from this point shall be responsibility of General Contractor.

END OF SECTION 085113

ALUMINUM BLAST RESISTANT WINDOWS

085113 - 2