Ensure safe and reliable ship stair access with BA-NB-20HZ 30” x 54” Ship Stair Roof Hatch – Steel - MDA Approved by Best Access Doors. BA-NB-20HZ comprises heavy-gauge steel and a robust construction that will withstand extreme weather conditions and is tested and certified for use in hurricane zones.
BA-NB-20HZ allows frequent 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 BA-NB-20HZ's sturdy, fully welded, and weather-sealed curb to hold up against the harshest conditions; be it rain, heavy winds, or worse, BA-NB-20HZ will perform!
Larger Opening for Greater Access: BA-NB-20HZ boasts a larger standard opening, providing an expanded entry point for safe ship stair access to rooftops.
Efficient Rooftop Entry: BA-NB-20HZ grants easy one-handed access to rooftops with the use of interior and exterior turn handles and powerful compression springs. And with automatic locking arms, easy access is ensured, every time.
UL 790 Compliant: BA-NB-20HZ 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, an overlapping cover design, and 7/8" predrilled holes, BA-NB-20HZ easily and securely fastens to roof decks with a straightforward, streamlined process.
Weatherproofed Construction: BA-NB-20HZ has EPDM rubber gaskets permanently adhered to its cover, providing a tight seal, leaving the elements out of your spaces. BA-NB-20HZ's construction leaves it highly resistant to corrosion from elemental exposure, including heavy rain.
Structural Reinforcement: BA-NB-20HZ provides live-load support of up to 40 pounds per square foot of load-bearing support to your rooftops.
Optimized Energy Efficiency: BA-NB-20HZ has 1" thick fiberboard insulation within its curb, reinforced by 1" thick fiberglass within its cover for enhanced thermal resistance and reduced energy consumption.
Specifications:
Dimensions: 30” x 54”
Material:14-gauge G-90 paint bond galvanized steel frame and door with G-90 paint bond galvanized 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: Enclosed two-point spring latch or interior and exterior turn handle with padlock hasps Note: Please contact our team to specify
Lift-Assistance: Compression spring operators enclosed in telescopic tubes. Automatic hold-open arm with grip handle release
Finish: Alkyd based red oxide primer
Hardware: Aluminum – Engineered composite compression spring tubes with steel compression springs packed in grease; Type 316 Stainless steel hinges; all other hardware zinc-plated
Maintain consistent, worry-free ship stair access with complete peace of mind by adding BA-NB-20HZ 30” x 54” Ship Stair Roof Hatch – Steel – MDA Approved from Best Access Doors!
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Connect with us at your convenience at (800)-483-0823; we would love to help!
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Spec Sheet
BA-NB-20HZ
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Real Reviews From Real Customers
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