Type NB roof hatches are ideal for installations where frequent use may be expected. Permits easier movement of maintenance personnel, tools and equipment.

Features:

• Engineered with compression spring operators to provide smooth, easy, one-hand operation, regardless of size
• Overlapping cover design, full welded corners on cover and curb, EPDM rubber gasket, and fully insulated cover and curb ensure weather tightness and energy efficiency
• Automatic hold-open arm locks the cover in the open position to ensure safe egress
• Heavy gauge construction and positive latching mechanism maintain building security
• Constructed with corrosion resistant materials to provide many years of trouble free, dependable service
• Curb features the Bil-Clip® flashing system, an innovative method to quickly and easily secure single-ply roofing material to Bilco roof products