Specifications - Section 08348/08 34 73
Acoustic Steel Door & Frame Assembly
Part 1 - General |
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1 . 1 |
Work Included Supply Only of; |
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Acoustic steel frames. |
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Acoustic steel doors,swing type. |
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Door gasketing along perimeter jambs & header. |
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Door bottom gasketing. |
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Acoustic glazing.
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1 . 2 |
Related Work |
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Building frames into walls. |
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Installation of doors and hardware. |
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Drilling and tapping of doors and frames for surface mounted hardware. |
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Caulking of joints between frames and other building components. |
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Finish hardware. |
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Finish painting. |
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Fasteners for frame product in previously placed concrete, masonry or structural steel.
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1 . 3 |
Requirements of Regulatory Agencies |
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Install fire labelled steel door and frame products in accordance with NFPA-80, current edition, except where specified otherwise. |
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Product shall be tested in conformance with established test procedures for measuring acoustic performance and in particular with ASTM E90-90 and ASTM E413-87.
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1 . 4 |
Compliance with Required Acoustic Performance |
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As part of the submittal process the manufacturer of the door/frame units shall submit independent test data from a recognized licenced laboratory indicating compliance with the Sound Transmission Class (STC) specified by the project architect or engineer.
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1 . 5 |
Warranty |
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Material and workmanship shall be warranted by manufacturer for a period of five (5) years from the date of supply. Warranty shall apply to replacement or retrofit of product only.
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1 . 6 |
Approved Manufacturers |
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Ambico Limited
1120 Cummings Avenue
Ottawa, Ontario, Canada,
K1J 7R8
Phone (613) 746-4663
Fax (613) 746-4721
Toll Free Phone (North America): 888 423-2224
Toll Free Fax (North America): 800 465-8561
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Part 2 - Products |
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2 . 1 |
Materials |
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Steel: Commercial grade zinc coated steel to ASTM A653 |
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Acoustic Composite Core: Core material for units shall be manufacturer's proprietary standard, tested as part of a fully operable assembly in accordance with ASTM E90-90 and ASTM E413-87 to provide the Sound Transmission Class (STC) specified by the architect. |
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Primer: Rust inhibitive touch-up only.
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2 . 2 |
Fabrication |
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General:
A. : Frames and doors shall be manufacturer's proprietary standard, tested as part of a fully operable assembly in conformance with ASTM E90-90 and ASTM E413-87 to provide the Sound Transmission Class (STC) specified by the architect.
B. : Frames and doors shall be blanked, reinforced, drilled and tapped for mortised, templated hardware.
C. : Frames and doors shall be reinforced where required for surface mounted hardware.
D. : Frames shall be prepared for and supplied complete with manufacturer's proprietary design of frame gasketing system.
E. : Provide factory-applied, touch-up primer at areas where zinc coating has been removed during fabrication.
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2 . 3 |
Fabrication - Frames, Welded Type |
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Frame product shall be accurately mitred and securely welded on the inside of the profile. |
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Welded joints shall be ground to a smooth, uniform finish. |
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Floor anchors shall be securely attached to the inside of each jamb profile. |
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Weld in two (2) temporary jamb spreaders per frame to maintain proper alignment during shipment. |
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Glazing stops shall be accurately fitted, butted at corners and fastened to frame sections with counter-sunk, oval head, sheet metal, tamperproof screws.
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2 . 4 |
Fabrication - Doors |
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Doors shall be swing type, flush, with provision for acoustic glass as indicated on schedules. |
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Longitudinal edges shall be seamless. Seams shall be welded, filled and ground smooth. |
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Top and bottom of doors shall be provided with inverted, recessed channels spot welded to door faces, and flush, closed top channels. |
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Core shall be proprietary acoustic composite core as tested by manufacturer to meet specified STC rating.
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2 . 5 |
Acoustic Glazing |
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Acoustic glass shall be factory installed. The acoustic level of the glass shall conform to that of the door/frame unit.
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Part 3 - Execution |
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3 . 1 |
Site Storage and Protection of Materials |
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All materials shall be thoroughly inspected upon receipt and all discrepancies, deficiencies and/or damages shall be immediately reported in writing to the supplier.
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3 . 2 |
Installation |
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Set frames plumb, square, level and at correct elevation in accordance with manufacturer's installation instructions. |
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Fire labelled frames shall be installed in accordance with NFPA-80, most current edition. |
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Secure anchorages and connections to adjacent construction. |
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Make allowance for deflection to ensure structural loads are not transmitted to frame product. |
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Mask glazing prior to on-site painting. |
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Install doors and hardware in accordance with hardware templates and manufacturer's instructions. |
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Adjust operable parts for correct clearances and function.
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