30" x 54" Security Roof Access Hatch - Aluminum - Bilco

NB-50C 30" x 54" Security Roof Access Hatch - Aluminum - Bilco

The NB-50C Security Roof Access Hatch - Aluminum has a durable aluminum material for protection against corrosion. This security roof access hatch is perfect for buildings that need high security, like correctional facilities, banks, and mental institutions.   

Its heavy-duty slam latch with interior and exterior turn handle and padlock ensures security and saves energy costs with the NB-50C's 1-inch (25 mm) concealed fiberglass insulation, which is weather resistant.  

Why install the NB-50C?       

Affordable: The NB-50C security roof access hatch also provides a cost-effective solution to address your security roof access hatch needs for your commercial building. In addition, this product is easy to install without special tools and requires no maintenance.      

Super-Durability: This security roof access hatch is tough and long-lasting with its aluminum material. And no need to worry about corrosion with its 11 gauge (2.3 mm) aluminum mill finish that promises strength and aesthetics.    

Variety: If you are looking for multiple product options, you can choose from NB-50C's various sizes and options that will surely fit your commercial building.     

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 cap flashing, 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 the frame to the roof deck.  

• Gasket: An 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 the interior, 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, made with type 316 Stainless steel hinges. All other hardware is zinc-plated/chromate sealed.  

Call Us Today!     

Why Choose Access Doors and Panels? Because we are your reliable source of practical and handy access panels for your walls, ceilings, floors, and even your roofing system. We understand your access and security needs, so you can always talk to our expert product specialists and apply for credit! Call us at (800)-609-2917 and experience our excellent products and services!