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Bilco NB-40

Name: Bilco NB-40 Type NB Roof Hatch - Ship Stair Access - 30" x 54" - Aluminum Cover - Galvanized Steel Curb
Brand: Bilco
SKU: Bilco NB-40
Price: 2041.78 USD

Bilco NB-40 Type NB Roof Hatch - Ship Stair Access - 30" x 54" - Aluminum Cover - Galvanized Steel Curb

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Bilco NB-40 Type NB Roof Hatch - Ship Stair Access - 30" x 54" - Aluminum Cover - Galvanized Steel Curb

Price: $2,041.78 USD

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Product Description:


Type NB Roof Hatch - Ship Stair Access - 30" x 54" - Aluminum Cover - Galvanized Steel Curb

Standard Features and Benefits: Type NB roof hatches, 30" x 54" (762mm x 1372mm), are ideal for installations where frequent use may be expected. Permits easier movement of maintenance personnel, tools and equipment. 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 weather tightness 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: Aluminum - Cover and frame are 11 gauge (2.3 mm) aluminum. Cover: Brake formed, 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: 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. Performance Ratings: Complies with UL 790 Class A (burning brand test). 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.	Brochure Installation Instruction Operational Instructions Template

Questions and Answers

Q: fire rating

A: This unit featuring an Aluminum Cover does not carry any fire rating what-so-ever.

Q: can this be opened from the roof side

A: There is indeed a handle that runs through the unit to the exterior and it would be the Bilco RPRS8 Turn Handle Assembly - Shaft Length: 4-5/8" as seen here:

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provided the Bilco NB-40 Type NB Roof Hatch - Ship Stair Access - 30" x 54" - Aluminum Cover - Galvanized Steel Curb was not padlocked from either interior or exterior you would be able to enter however this unit features the ability to padlock the unit from both sides of the door.

Q: What is the R-value of the insulation supplied in this model?

A: The 3” (75mm) Polyisocyanurate cover = R = 20.3 as referred to on page 7 of the manufacturers full line product catalog as seen here:

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