![]() ![]() Cover: Breakformed, hollow-metal design with 1" (25.4mm) concealed fiberglass insulation, 3" (76mm) beaded, overlapping flange, fully welded at corners, and internally reinforced for 40 psf (195 kg/m2) live load.Stainless Steel: Cover and frame are 14 gauge (1.9mm) type 304 stainless steel Aluminum: Cover and frame are 11 gauge (2.3mm) aluminum. Steel: Cover and frame are 14 gauge (1.9mm) G-90 paint bond galvanized steel. Available in many sizes and curb configurations to satisfy any requirement or installation.Curb features the Bil-Clip? flashing system, an innovative method to quickly and easily secure single-ply roofing material to Bilco roof products.Heavy gauge construction and positive latching mechanism maintain building security.Constructed with corrosion resistant materials to provide many years of trouble free, dependable service. ![]() Overlapping cover design, full welded corners on cover and curb, EPDM rubber gasket, and fully insulated cover and curb ensure weathertightness and energy efficiency.Automatic hold-open arm locks the cover in the open position to ensure safe egress.Engineered with compression spring operators to provide smooth, easy, one-hand operation, regardless of size.Available in galvanized steel or aluminum construction. Type S, 36" x 30" (914mm x 762mm),the easy one-hand operation to the fully open or close position provides the ladder user the security of having one hand firmly on the ladder at all times.
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