For applications requiring smaller vents, single leaf models are available in galvanized
steel or aluminum construction and can be provided with polycarbonate domes for
added daylight. By Bilco.Construction Specifications: Material-Steel:Cover and frame are 14 gauge G-90 paint bond galvanized steel Aluminum: Cover and frame are 11 gauge aluminum Cover: Breakformed, hollow-metal design with 1" concealed fiberglass insulation, 3" beaded, overlapping flange, fully welded at corners, and internally reinforced for 40 psf (195 kg/m2) live load Gasket: Extruded EPDM rubber gasket permanently adhered to the cover Hinges: Heavy-duty pintle hinges with 3/8" Type 316 stainless steel hinge pins Latch: Positive hold/release mechanism controlled by a single UL-listed 165°F (74°C) fusible link. Designed to hold the cover closed against a 90 psf (438 kg/m2) uplift force. Performance Rating: Comply with UL 790 Class A (burning brand test) Finish-Steel: Alkyd base red oxide primer; Aluminum: Mill finish Hardware-Steel: Engineered composite compression spring tubes. Steel compression springs with electrocoated acrylic finish. All other hardware is zinc plated/chromate sealed. Aluminum: Engineered composite compression spring tubes. Steel compression springs with electrocoated acrylic finish. Type 316 stainless steel hinges. All other hardware is zinc plated/chromate sealed. |





For applications requiring smaller vents, single leaf models are available in galvanized
steel or aluminum construction and can be provided with polycarbonate domes for
added daylight. By Bilco.
