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Type GS Roof Hatch and SkylightZoom In

Type GS Roof Hatch and Skylight

Type GS roof hatches, 36" x 30" (914mm x 762mm),provide all the security and convenience of the Type S hatch with the added benefits of a skylight. The products features a polycarbonate dome cover, aluminum construction, and easy one-hand operation. Also available in other standard roof hatch sizes and custom sizes can be supplied when specified.


Roof Hatch Model: Type GS-50

Now Available in
Thermally Broken

Click here for more information
Standard Features and Benefits  
  • Engineered with compression spring operators to provide smooth, easy, one-hand operation, regardless of size
  • Automatic hold-open arm locks the cover in the open position to ensure safe egress
  • Overlapping cover design, full welded corners on cover and curb, EPDM rubber gasket, and fully insulated cover and curb
    ensure weathertightness and energy efficiency
  • Constructed with corrosion resistant materials to provide many years of trouble free, dependable service
  • Heavy gauge construction and positive latching mechanism
    maintain building security
  • Curb features the Bil-Clip flashing system, an innovative method to quickly and easily secure single-ply roofing material to Bilco roof product
  • Available in many sizes and curb configurations to satisfy any requirement or installation
    Guide Specifications

Ladder sold
by others
  • Material: Cover and frame are 11 gauge (2.3 mm) aluminum.
  • Cover: Aluminum extrusion with built-in condensation drainage channel and clear polycarbonate dome or double domes. Dome(s) is coated for UV-resistance
  • 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.
  • Gasket: Extruded EPDM rubber gasket permanently adhered to cover.
  • Hinges: Heavy-duty pintle hinges with 3/8" (9 mm) Type 316 stainless steel
    hinge pins.
  • Latch: Slam latch with interior and exterior turn handles and padlock hasps.
  • Lift Assistance: Compression spring operators enclosed in telescopic tubes. Automatic hold-open arm with grip handle release.
  • Finish: Mill Finish.
  • Hardware: Engineered composite compression spring tubes and steel compression springs packed in grease.Type 316 Stainless steel hinges. All other hardware is zinc plated/chromate sealed.
U.S. Patents  5,960,596  6,347,818