VersaMount Roof Hatch Models

Type S-20VM, NB-20VM, L-20VM, S-50VM, NB-50VM, L-50VM

Standard Features and Benefits

• Built-in apron simplifies installation on existing curbs and ensures watertightness
• 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
• Available in many sizes and curb configurations to satisfy any requirement or installation

Guide Specifications

• Material (select one):
  • Steel: Cover and frame are 14 gauge (2 mm) G-90 paint bond galvanized steel.
  • Aluminum: Cover and frame are 11 gauge (2.3 mm) aluminum.
  • Stainless Steel: Cover and frame are 14 gauge (2 mm) type 304 stainless steel.
• Cover: Brakeformed, hollow-metal design with 1" (25 mm) concealed fiberglass insulation, 3" (76 mm) beaded, overlapping flange, fully welded at corners, and internally reinforced for 40 psf (195 kg/m2) live load.
• Curb: 4" (102mm) in height, breakformed hollow-metal design with 1" (25 mm) concealed fiberglass insulation, 2-5/8" (67 mm) mounting flange and 1-1/2" (38 mm) apron, fully welded at corners. Stainless steel anchor clips are included.
• Gasket: Extruded EPDM rubber gasket permanently adhered to the 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: Steel: Alkyd base red oxide primer. Aluminum: Mill Finish. Stainless Steel: Type 304 stainless steel with bead blast finis
• Hardware: 
  • Steel: All hardware is zinc plated/chromate sealed. 
  • Aluminum: Type 316 Stainless steel hinges. All other hardware is zinc plated/chromate sealed.

U.S. Patents  6,347,818  6,672,020

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CA Prop 65 Notice

WARNING : The State of California has deemed that this product can cause cancer, birth defects or other harmful effects. For more information, please visit For more information, Please visit: www.p65warnings.ca.gov/