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Type D Roof Hatch - Equipment AccessZoom In

Type D Roof Hatch - Equipment Access

Type D roof hatches provide a convenient way to install or remove large pieces of equipment from a building. Equipment access roof scuttles are available in steel, aluminum, and stainless steel construction. Hatches are custom fabricated to meet your size requirements (Note: larger sizes may require aluminum construction for proper operation).


Roof Hatch Models: Type D-20, D-40, D-50

Standard Features and Benefits
  • Engineered with compression spring operators to provide smooth, easy, one-hand operation, regardless of size
  • Automatic hold-open arms lock the covers in the open position to ensure safe egress
  • Overlapping cover design, full welded corners on covers 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 products
  • Available in many sizes and curb configurations to satisfy any requirement or installation
Guide Specifications
  • Material (select one):
    Steel: Covers and frame are 14 gauge (2mm) G-90 paint bond galvanized steel.
    Aluminum: Covers and frame are 11 gauge (2.3mm) aluminum.
    Stainless Steel: Covers and frame are 14 gauge (2mm) type 304 stainless steel.
  • Covers: Brakeformed, hollow-metal design with 1" (25mm) concealed fiberglass insulation, 3" (76mm) beaded, overlapping flange, fully welded at corners, and internally reinforced for 40 psf (195 kg/m2) live load.
  • Curb: 12" (305mm) in height with integral capflashing, 1" (25mm) fiberboard insulation, fully welded at corners, and 3-1/2" (89mm) mounting flange with 7/16" holes (11mm) 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" (9mm) type 316 stainless steel hinge pins.
  • Latch: Single leaf: Slam latch with interior and exterior turn handles and padlock hasps. Double leaf: Enclosed two point spring 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:
    Steel: Alkyd base red oxide primer.
    Aluminum: Mill Finish.
    Stainless Steel: Type 304 stainless steel with bead blast finis
  • Hardware: 
    Steel: Engineered composite compression spring tubes with steel compression springs packed in grease.  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.
    Stainless Steel: Type 316 stainless steel.

U.S. Patents  5,960,596  6,347,818