Ensure safe and reliable ship stair access with BA-NB-50TB 30” x 54” Thermally Broken Ship Stair Roof Hatch - Aluminum by Best Access Doors. Expect frequent ship stair access with this model’s 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. This innovative roof hatch features a thermally broken design that significantly reduces heat transfer, helping you maintain a comfortable and energy-efficient indoor environment
Get To Know BA-NB-50TB!
Larger Opening for Greater Access: BA-NB-50TB boasts a larger standard opening, providing an expanded entry point for easy integrations with ship stairs.
Decreases Energy Consumption: With 3” concealed PIR insulation, BA-NB-50TB provides an exceptional thermal resistance rating of R-20+ to your building, reducing heat loss and gain; perfect for all seasons.
Efficient Rooftop Entry: BA-NB-50TB 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 and a secure close, every time.
Easier Installations: With a 5-½" mounting flange and 7/8" predrilled holes, BA-NB-50TB easily and securely fastens to roof decks with a straightforward, streamlined process.
Weatherproofed Construction: BA-NB-50TB has EPDM rubber gaskets permanently adhered to its cover, providing a tight seal while leaving the elements out of your spaces. BA-NB-50TB's construction leaves it highly resistant to corrosion from elemental exposure.
Structural Reinforcement: BA-NB-50TB provides live-load support of up to 40 pounds per square foot of load-bearing support to your rooftops.
Specifications:
Dimensions: 30” x 54”
Material: 11-gauge aluminum cover and frame
Cover: Brake-formed hollow-metal design with 3" concealed PIR insulation, 5" beaded, overlapping flange, fully welded at the corners, internally reinforced for 40 psf live load
Curb: 12" in height with integral cap-flashing, 3" PIR insulation, fully welded at corners, 5-½" 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: Mill finish
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 BA-NB-50TB 30” x 54” Thermally Broken Ship Stair Roof Hatch - Aluminum by Best Access Doors!
Just a Click or a Call Away
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!
Product Downloads
Spec Sheet
BA-NB-50TB
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Real Reviews From Real Customers
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