Tomorrow's School Door is Here Today
Aluminum-member heavy-duty FRP doors shall be Cline Series 200BE FRP Doors shall be a minimum thickness of 1.75-inches (44.45mm) and a minimum 3-ply with a FRP composite skin thickness of 0.120-inch (3.05mm). Door facing shall be a composite, UV inhibited, glass fiber laminate (FRP) with a pebble-like embossed pattern. Reinforced polyester plastic panels shall be or exceed allowances per ASTM D3841. FRP face sheets shall be a Class C Flame Spread and Smoke Developed Rating (ASTM E 84), and have a flame spread of 120 and a smoke development of 290 for both interior and exterior faces of interior and exterior doors. Core shall be an organic based marine grade honeycomb core with high compression strength of 94.8 psi (ASTM C365), and internal aluminum hardware backup tube. The hardware backup tube shall be a minimum of 4.25-inches (107.95mm) in width, 1.375-inches (34.93mm) in depth with a wall thickness of 0.125-inches (3.18mm). Internal framing members shall be mechanically joined with #10 stainless steel threaded fasteners. [Option: Internal framing members shall be mechanically joined top and bottom, 3/8-inch plated steel tie rods secured with stainless nylock nuts.] Door edges and face sheets shall be flush in appearance; face sheets shall be trimmed with replaceable aluminum reglets of 6063-T5 alloy on perimeter edges. Lock stiles shall have aluminum bevel-edge and integral wool-pile weather stripping. Hinge stile to be prepared for standard template 4.5-inch x 4.5-inch butt hinge. [Option: Hinge stile to be smooth to accept standard geared hinges.] Beads and trim wall thickness shall be minimum thickness of 0.050-inch (1.27mm). Nominal door sizes shall be provided.
Standard clearances shall be:
- Hinge and lock stiles, 0.125-inch (3.18mm)
- Between meeting stiles on pairs, 0.250-inch (6.35mm)
- At top rails, 0.125-inch (3.18mm)
- Between door bottom and threshold, 0.125-inch (3.18mm)
- Bonding agents shall meet EPA requirements.
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