ADC-NB-90

ADC-NB-90 Ship Stair Roof Hatch - Stainless Steel - Bilco 

Invest in simple, reliable, and durable ship stair access to rooftops with the ADC-NB-90 Ship Stair Roof Hatch - Stainless Steel from Access Doors Canada.

Constructed from high-quality stainless steel, the ADC-NB-90 boasts a sturdy, fully welded, and weather-sealed curb, ensuring it can withstand even the harshest conditions—rain, sleet, hail, snow, or scorching sunlight. Experience effortless operation with Type 316 stainless steel hinge pins and powerful compression springs for lift-assisted opening. Automatic hold-open arms enhance convenience, allowing operators to transport tools, equipment, and other materials easily.

The ADC-NB-90 is the perfect solution for frequent ship stair use on your rooftop. 

Why Should You Use the ADC-NB-90?  

  • Enhanced Ship Stair Integration: The ADC-NB-90 boasts a larger standard opening, creating a more spacious entry point for seamless integration with ship stairs. 
  • Effortless Rooftop Access: Experience smooth access to rooftops with interior and exterior turn handles. Powerful compression springs and automatic locking arms always ensure effortless opening and secure closure. 
  • Superior Fire Protection: NB-90 offers a fire-resistant option that complies with UL 790 standards, providing the highest level of fire protection for your rooftop.
  • Simplified Installation: The NB-90 features a 3-½" mounting flange and pre-drilled holes for streamlined and secure fastening to roof decks. 
  • Weatherproof Construction: Permanently adhered EPDM rubber gaskets create a tight seal on the NB-90's cover, keeping the elements out. It offers exceptional resistance to corrosion from harsh weather conditions. 
  • Structural Reinforcement and Energy Efficiency: The NB-90 provides live-load support of up to 40 lbs./sq. ft. and incorporates 1" thick fiberboard insulation within its curb, reinforced by 1" thick fiberglass within its cover for enhanced thermal resistance and excellent insulation. 

At Access Doors Canada, we take pride in ensuring our customers are fully satisfied with our products. Just choose the size and customization that fits your construction needs. Connect with us to request a quote or call us at (800) 679-3405. Our team of experts is ready to answer your questions. 

If you’ve bought one of our products, please feel free to contact us and give us your thoughts about them.