SERIES SA30 STEEL/ALUMINUM FIXED DETENTION WINDOWS SECTION 08651

Transcription

1 SERIES SA30 STEEL/ALUMINUM FIXED DETENTION WINDOWS SECTION PART 1 GENERAL 1.1 DESCRIPTION A. Work Included: 1. Furnish all labor and materials to complete the fabrication of detention windows as shown on the architect s drawings and as specified herein. All detention windows covered by this specification shall be fabricated by Hope s Windows Inc., Jamestown, New York, whose name and products are used to establish the standard of workmanship and quality construction required for this project. The architect must approve other bidders at least fifteen days prior to the bid date, through submission of samples and evidence showing that the bidder has been fabricating detention window products of this type and quality for at least five years. All windows must be domestically manufactured in the U.S.A. All work shall include, but not be limited to, the following: 2. Formed steel maximum detention (or moderate detention) fixed thermally improved windows having horizontal or vertical steel detention bars spaced 6 on center concealed within the rails. The round detention bars shall penetrate the flat detention bars concealed in the frame to form an integral detention grid. (Minimum detention windows shall have no detention bars.) 3. All detention window anchors, mullions, covers and trim. 4. Factory applied Hope s finishes. 5. Aluminum exterior frame to have clear anodized finish. 6. Detention screens (optional). 7. Installation B. Related work specified elsewhere: 1. Glass, glazing and glazing materials. 2. Perimeter caulking. 3. Miscellaneous structural items. 4. Anchors built in or encased in concrete, (embedment). 1.2 QUALITY ASSURANCE A. Manufacturer shall have not less than (10) years experience in the fabrication of steel detention windows and be a member of The Steel Window Institute (SWI). B. Experienced window installers shall do installation of windows. C. Allowable tolerances: Size dimensions +/- 1/16 inch. D. Source quality control: 1. Air infiltration test, meets or exceeds ASTM E283, maximum air infiltration.37 CFM/ Ft. of crack length with pressure differential across the window unit of 1.57 PSF. 2. Water penetration test, meets or exceeds ASTM E331, no water penetration for 15 minutes when the window is subjected to a rate of flow of 5 gal. /hr./sq. ft. with differential pressure across the window unit of 2.86 PSF. 3. Tool-resisting steel meets or exceeds ASTM A627-03, Grade 4, submit test reports from a qualified independent testing laboratory verifying that the window manufacturer s tool-resisting steel are in conformance with ASTM A Impact Test, meets or exceeds ASTM F Standard Test Methods for Detention Hollow Metal Vision Systems a. Impact Blows - Must withstand a minimum of 600 blows at each impact location (1200 total blows per frame without rail bar, 1800 total blows per frame with rail bar)

2 1.3 SUBMITTALS b. Glazing Test - The glazing and panels shall remain in place. No damage to the extent that forcible entry can be achieved. c. Frame Test No weld joints or the entire frame joint shall completely separate. d. The wall anchoring shall retain the frame in place throughout the test procedure to the extent that forcible entry cannot be achieved. 5. Uniform Load Deflection Test: Test unit accordance with ASTM E at 65-psf. 6. Condensation Resistance Test (CRF): Test unit for thermal performance in accordance with AAMA with condensation resistance factor of at least Thermal Transmittance Test (Conductive U-Value): Test unit in accordance with AAMA with U- Value of 65 or less. 8. Forced Entry Resistance Test: Unit tested in accordance with ASTM F for Type B Grade Quality of e-coat/ top-coat combination shall meet or exceed the following ASTM designations: ASTM D714- Paint Blistering Test, ASTM D4585 Humidity Test, ASTM B117 Salt Spray (Fog) Test, ASTM D1654 Painted Products in Corrosive Environments, ASTM G85 Cyclic Fog/Dry Test (Prohesion), ASTM D5894 Salt Fog/UV Painted Metal, ASTM D4541 Pull Off Strength of Coating Test. 10. Along with submittals, the window manufacturer shall provide the applicable test report from a qualified independent testing laboratory regularly engaged in testing windows to verify that his products conform to these test requirements. All testing must be current and meet minimum requirements in conformance with specifications A. Samples (as requested by architect): 1. Typical corner sample. 2. Color sample of finish. B. Shop drawings and manufacturer s literature: 1. Submit for approval shop drawings showing full size window and installation details including anchorage, fastening and recommended sealing methods. 2. Dimensioned elevations showing window opening and window sizes. 3. The manufacturer shall not commence any work until shop drawings have been approved. 4. Color charts for standard finishes and sealants. 1.4 PRODUCTS, STAGE AND HANDLING A. The general contractor shall be responsible for the protection and storage of the windows after delivery to the site. B. Store in designated areas as close as possible to point of installation. 1.5 WARRANTY A. Provided Hope s standard (1) year Warranty. PART 2 - PRODUCT 2.1 MATERIALS A. The perimeter interior framing shall be formed from 12-gauge steel. B. The perimeter exterior framing shall be Hope s aluminum thermal break sections extruded from alloy 6063-T52 with a minimum wall thickness of.125. The screws attaching the exterior and interior perimeter framing shall be stainless steel. C. Optional horizontal and/or vertical rail bars are available to receive and conceal steel detention bars without dividing the glass area. Rail bars shall be from 12-gauge steel.

3 D. Thermal break in the exterior aluminum frame shall be poured in thermal break material. E. Glazing rebate shall provide unobstructed glazing surface at least 3/4 in height. F. Maximum detention windows shall have detention bars of 7/8 or 1 round and 1/4 x 2 ½ flat tool-resisting steel conforming to ASTM specifications A627. (Moderate detention windows shall have detention bars of 7/8 or 1 round and 1/4 x 2 ½ flat mild steel.) G. Glazing beads shall be aluminum, extruded from alloy 6063-T52 with a minimum wall thickness of.062. Attaching screw shall be tamper-resistant stainless steel. H. Anchors shall be fabricated from steel angles with a minimum leg thickness of 3/16. (For pre-cast applications anchors shall be 3/8 diameter concrete anchor studs.) I. Detention screens (option - select one) 1. Fixed angle frame a. Frames shall be steel angles formed from #12-gauge steel. b. Clamp strip shall be #12-gauge steel. c. Screen cloth shall be stainless steel, Type 18/8, Alloy #304, woven 12-mesh to the inch from diameter wire, double crimped. (Option - stainless steel, Type 18/8, Alloy #304, woven 10-mesh to the inch from diameter wire, double crimped). 2. Fixed tubular frame a. Frames shall be fabricated from 3/4 x 1-1/2 x wall steel tubes. b. Braces shall be furnished where required. c. Screen cloth shall be stainless steel, Type 18/8, Alloy #304, woven 12-mesh to the inch from diameter wire, double crimped. (Option - stainless steel, Type 18/8, Alloy #304, woven 10-mesh to the inch from diameter wire, double crimped.) 3. Operable steel detention screens (optional) are available. - Consult Hope s for details and specifications. J. Screws shall be tamper-resistant truss-head plated steel. K. Painted Finish (Steel): 1. Pre-treatment. 2. Primer E-Coat (Electrodeposited epoxy primer). 3. Finish coat Factory applied polyurethane L. Finish (Aluminum): R1 Clear Anodize. 2.2 FABRICATION A. Fabricate windows in accordance with approved shop drawings. B. The perimeter framing shall consist of two units, exterior and interior sub-frames. The interior sub-frame shall be coped and welded at corners the full depth of the frame for maximum strength and weather tightness, with all exposed welds dressed smooth. The corners of the exterior sub-frame shall be coped and screwed. C. Optional horizontal and/or vertical imposts or rail bars shall be securely welded to the frame for maximum strength and weather tightness, with all welds dressed smooth or concealed. D. The interior sub-frame shall be equipped with threaded AVK nuts to which the exterior sub frame shall be securely attached. Drilled holes with pop rivet attachment shall not be acceptable. E. Anchors shall be located a maximum of 18 on center and shall be a minimum of 2 long.

4 F. All removable covers or trim, either exterior or interior, shall be attached with tamper-resistant screws spaced not more than 9 on center at the interior and spaced not more than 12 on center at the exterior. G. Horizontal or vertical 7/8 or 1 round steel detention bars shall penetrate and be securely welded to the concealed 1/4 x 2 ½ flat detention bars to form an integral detention grid. The 7/8 or 1 round detention bars shall be equipped with a feature that allows the rod to rotate freely and discourages a device from cutting into the bar. H. Where the height or width of a window requires, intermediate detention bars may be added that would allow the horizontal or vertical 7/8 or 1 round steel detention bars to penetrate and run continuously. This intermediate bar would prevent any deflection or spreading of the horizontal or vertical detention bars. For maximum detention, this intermediate bar shall be 1/4 x 2 ½ flat tool-resistant steel bar (1/4 x 2 ½ flat mild steel for moderate detention) concealed in a 12-gauge steel formed impost. The recommended width or height without an intermediate bar should not exceed 36. (Consult Hope s.) I. Glazing: 1. All frames shall be designed for outside glazing. 2. Provide continuous glazing beads to suit glass, security glass, as specified. 3. Glazing beads shall be attached with tamper-resistant screws spaced a maximum of 9 on center. J. Detention screens (option - select one) 1. Fixed angle frame a. Frames shall be welded solid at corners and welds dressed smooth. b. Secure screen cloth to frame using special security screws spaced 4 on centers, which penetrate the frame, screen cloth and clamp strip. c. The screen frame and clamp strip shall be factory finished to match the window finish. 2. Fixed tubular frame a. Fixed steel tubular frame security screen frame shall be mitered and machine welded at corners and dressed smooth. b. Braces shall be furnished where required. c. Hem screen cloth at edges and secure to screen frame with special security screws spaced 4 on centers. Screws shall penetrate the double thickness of screen mesh at hemmed edges and frame. d. The screen frame and braces shall be factory finished to match the window finish. 3. Operable steel detention screens (optional) a. Screen frames shall be finished to match the finish of the windows. b. Consult Hope s for details and specifications. K. Factory finishing (Steel): 1. Shot Blasting a. Before any machining or welding is performed, all hot-rolled steel sections shall be cleaned by shot blasting to remove any loose scale. 2. Bonderizing a. After fabrication, windows, mullions, covers, and trim shall be subjected to a 10 stage bonderizing pretreatment process that produces a non-metallic phosphate coating on the surface of the steel in preparation for e-coat priming system. 3. E-Coat Prime Painting a. Following the pretreatment, windows and accessories are e-coated with a cathodic epoxy primer of PPG Powercron 8000 or equivalent to insure all surfaces are evenly covered. Spray or dip primers shall not be acceptable. b. Immersed in a rinse of ultra-filtered RO water for 3 min to remove all the excess paint and removing any runs. c. A spray of ultra-filtered RO water repeats the above process to further improve surface conditions. d. The primer is oven baked to 335 degrees F for 15 minutes to a dry film thickness of mil.

5 PART 3 - EXECUTION 3.1 INSPECTION e. The material is then cooled in preparation for the finish coat. 4. Ultrathane Finish Painting a. Following the prime coat, all windows and accessories are given a spray coat of acrylic polyurethane and oven baked at 225 degrees F for 15 minutes to dry film thickness of 1.5 to 2.0 mils. b. The combined overall dry film thickness of the prime coat and finish coat shall be mils. c. The architect shall choose from an unlimited color selection. Color matching is available upon request, along with clear coats. Some colors may require clear coats for added protection. Consult your Hope s Representative for selection assistance. 5. E-Coat/top coat combination shall provide full documented compliance with all ASTM designations as outlined in Quality Assurance portion of the specifications. A. Window openings shall conform to details, dimensions and tolerances shown on the window manufacturer s approved shop drawings. B. The general contractor must correct conditions, which may adversely affect the window installation, before installation commences. 3.2 INSTALLATION A. Experienced personnel shall install Windows specified under this section. B. Install windows in openings in strict accordance with approved shop drawings. 1. Set windows plumb, level and true to line without warp or rack of frames. 2. Anchor windows securely to surrounding construction with minimum of 1 long welds at anchor points. Maximum distance between weld points will be The exterior joints between the windows, trim and mullions shall be properly sealed weather tight with an approved sealant and neatly pointed. C. Install detention screens (if specified). D. Repair any abraded areas of the factory finish. 3.3 CLEANING A. Window installer shall leave the window surfaces clean after installation and ready to receive glass and glazing. The window installer shall not be responsible for final cleaning. B. Any protection necessary due to cleaning adjacent materials shall be the responsibility of the general contractor.