Roof Hatch Models
Type GS-50, GSS-50 (special size)
Standard Features and Benefits
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Engineered with compression spring operators to provide smooth, easy, one-hand operation, regardless of size
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Automatic hold-open arm locks the cover in the open position to ensure safe egress
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Overlapping cover design, full welded corners on cover and curb, EPDM rubber gasket, and fully insulated cover and curb ensure weathertightness and energy efficiency
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Covers are designed with a perimeter channel and weep holes to catch and drain normal condensation. Double domes are available for added cover insulation.*
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Constructed with corrosion resistant materials to provide many years of trouble free, dependable service
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Heavy gauge construction and positive latching mechanism maintain building security
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Curb features the Bil-Clip® flashing system, an innovative method to quickly and easily secure single-ply roofing material to BILCO roof products
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Type GS roof hatch and type GSS roof hatch are available in many sizes and curb configurations to satisfy any requirement or installation
*Please consult BILCO for residential applications or for installation on buildings with severe differences in indoor and outdoor temperatures.
Guide Specifications
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Material: Cover and frame are 11 gauge (2.3 mm) aluminum.
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Cover: Aluminum extrusion with built-in condensation drainage channel and clear polycarbonate dome or double domes. Dome(s) is coated for UV-resistance.
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Curb: 12" (305 mm) in height with integral capflashing, 1" (25 mm) fiberboard insulation, fully welded at corners, and 3-1/2" (89 mm) mounting flange with 7/16" holes (11 mm) provided for securing frame to the roof deck.
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Gasket: Extruded EPDM rubber gasket permanently adhered to cover.
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Hinges: Heavy-duty pintle hinges with 3/8" (9 mm) Type 316 stainless steel hinge pins.
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Latch: Slam latch with interior and exterior turn handles and padlock hasps.
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Lift Assistance: Compression spring operators enclosed in telescopic tubes. Automatic hold-open arm with grip handle release.
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Finish: Mill finish aluminum.
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Hardware: Type 316 Stainless steel hinges. All other hardware is zinc plated/chromate sealed.
U.S. Patents 5,960,596 6,347,818
