Product Description
Product Spec Sheet: 
30” x 54” Security Roof Hatch – Steel
Ensure safe and reliable ship stair access with BAC-NB-20C 30” x 54” Security Roof Hatch – Steel by Best Access Doors. BAC-NB-20C comprises heavy-gauge steel and a robust construction that will withstand tampering, vandalism, and breach attempts.
BAC-NB-20C allows frequent ship stair access with Type 316 stainless steel hinge pins and powerful compression springs for lift-assisted access. With automatic hold-open arms, operators can easily transport tools, equipment, and other material. Count on BAC-NB-20C's sturdy, fully welded, and weather-sealed curb to hold up against the harshest conditions; be it rain, sleet, rain, hail, snow, or sun rays, BAC-NB-20C will perform!
Why Choose BAC-NB-20C?
Enhanced Security: BAC-NB-20C comprises heavy, 14-gauge steel leaving it highly resistant to tampering; ideal for use in high security facilities such as banks, pharmaceutical buildings, and correctional facilities.
Efficient Rooftop Entry: BAC-NB-20C grants easy access to rooftops with the use of interior and exterior turn handles and powerful compression springs with automatic locking arms, ensuring easy access every time.
UL 790 Compliant: BAC-NB-20C fortifies your structures with tamper-resistant heavy-gauge steel and a Class A UL 790 rating providing the highest level of fire resistance for rooftops.
Easier Installations: With a 3-½" mounting flange and 7/8" predrilled holes, BAC-NB-20C easily and securely fastens to roof decks with a straightforward, streamlined process.
Weatherproofed Construction: BAC-NB-20C has EPDM rubber gaskets permanently adhered to its cover, providing a tight seal while leaving the elements out of your spaces. BAC-NB-20C's construction leaves it highly resistant to corrosion from elemental exposure.
Structural Reinforcement: BAC-NB-20C provides live-load support of up to 40 pounds per square foot of load-bearing support to your rooftops.
Optimized Energy Efficiency: BAC-NB-20C has 1" thick fiberboard insulation within its curb, reinforced by 1" thick fiberglass within its cover for enhanced thermal resistance and excellent insulation.
Specifications:
- Dimensions: 30” x 54”
- Material: 14-gauge 304 stainless steel
- Cover: Brake-formed hollow-metal design with 1" concealed fiberglass insulation, 3" beaded, overlapping flange, fully welded at the corners, internally reinforced for 40 psf live load
- Curb: 12" in height with integral cap-flashing, 1" fiberboard insulation, fully welded at corners, 3-½" mounting flange with 7/16" holes
- Gasket: Extruded EPDM rubber gasket permanently adhered to cover
- Hinges: Heavy-duty pintle hinges with 3/8" Type 316 hinge pins
- Latch: Slam latch with exterior and interior turn handles and padlock hasps
- Lift-Assistance: Compression spring operators enclosed in telescopic tubes. Automatic hold-open arm with grip handle release
- Finish: Type 304 stainless steel with mill finish and electrochemical passivation of welds
- Hardware: Aluminum – Engineered composite compression spring tubes with steel compression springs packed in grease; Type 316 Stainless steel hinges; all other hardware zinc-plated
Effortlessly access rooftops for inspections, installations, and maintenance with BAC-NB-20C 30" x 54" Security Roof Hatch – Steel by Best Access Doors!
We're Here for You!
At Best Access Doors, we are committed to our customer's satisfaction! Simply choose your size, and if you have general product questions, custom requests, or would like to make a large order, count on our world-class product specialists to guide you through every step!
Connect with us at your convenience at (800)-483-0823; we would love to help!