Bilco NB-20 Type NB Roof Hatch, 30 x 54, Steel

Product Description

Bilco NB-20 Type NB Roof Hatch, 30 x 54, Steel

Type NB, 30" x 54" (762mm x 1372mm), ideal for installations where frequent use may be expected. Permits easier movement of maintenance personnel, tools and equipment. Available in galvanized steel, aluminum, or stainless steel construction.

Bilco NB-20 Type NB Roof Hatch, 30 x 54, Steel Features:
• 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 products
• Available in many sizes and curb configurations to satisfy any requirement or installation

Bilco NB-20 Type NB Roof Hatch, 30 x 54, Steel Specifications:
• Steel: Cover and frame are 14 gauge (1.9mm) G-90 paint bond galvanized steel.
• Cover: Breakformed, hollow-metal design with 1" (25.4mm) 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" (25.4mm) 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" (9.5mm) 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.
• Hardware: Steel: Engineered composite compression spring tubes. Steel compression springs with electrocoated acrylic finish. All other hardware is zinc plated/chromate sealed.

Product Details and Features

• Manufacturer and Model: Bilco NB-20
• Material: Steel
• Shipping Restrictions: Freight/Ground Only
• Destination Restrictions: Can't ship to Alaska, Hawaii