Product Description
Product Spec Sheet : 
30" x 54" ADC-NB-50C Security Roof Hatch - Aluminum - Bilco
The 30" x 54" ADC-NB-50C Security Roof Hatch - Aluminum from Access Doors Canada ensures safe and reliable access for ship stairs.
Built with heavy-gauge aluminum and a robust design, the ADC-NB-50C is resistant to tampering, vandalism, and even forceful entry attempts. Ideal for frequent use, the hatch features Type 316 stainless steel hinge pins and powerful compression springs for effortless lift-assisted opening. Automatic hold-open arms further enhance convenience during operation, allowing for easy transport of tools, equipment, and materials.
The ADC-NB-50C boasts a sturdy, fully welded, and weather-sealed curb, ensuring it can endure any weather condition, from rain and snow to hail and scorching sun rays.
Why Should You Use the 30" x 54" ADC-NB-50C?
- Unmatched Security: Constructed from heavy-gauge, 11-gauge aluminum, the ADC-NB-50C offers exceptional resistance to tampering, making it ideal for high-security applications like banks, pharmaceutical buildings, and correctional facilities.
- Larger Opening for Efficient Access: The NB-50C features a larger standard opening than other hatches, creating an expanded entry point for safe and convenient ship stair access to rooftops.
- Effortless Entry and Secure Access: Experience smooth one-handed access with interior and exterior turn handles. Powerful compression springs and automatic locking arms always ensure effortless opening and secure closure.
- Superior Fire Protection: NB-50C offers a fire-resistant option that complies with UL 790 standards, providing the highest level of fire protection for your rooftop. (Please specify details of the fire-resistant version).
- Simplified Installation: NB-50C streamlines installation with a 3-½" mounting flange, overlapping cover design, and pre-drilled holes, allowing for secure fastening to roof decks.
- Weatherproof Construction: Permanently adhered EPDM rubber gaskets create a tight seal on the NB-50C's cover, keeping the elements out. Additionally, its aluminum construction offers exceptional resistance to corrosion from harsh weather conditions, including heavy rain.
- Structural Reinforcement and Energy Efficiency: The NB-50C 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 reduced energy consumption.
Product Specifications
- Measurements: 30" x 54"
- Material: Durable construction featuring an 11-gauge aluminum cover and frame for a lightweight yet robust design.
- Cover: Brake-formed hollow metal design incorporates 1" concealed fiberglass insulation for superior thermal and acoustic dampening. The cover features a 3" beaded, overlapping flange, fully welded at the corners for strength, and is internally reinforced to withstand heavy loads (40 lbs./sq. ft. live load).
- Curb: The 12"-high curb with integrated cap flashing ensures a watertight seal. It includes 1" fiberboard insulation for improved thermal performance and a 3-½" mounting flange with pre-drilled 7/16" holes for streamlined installation.
- Gasket: An extruded EPDM rubber gasket permanently adhered to the cover creates a secure seal.
- Hinges: Heavy-duty pintle hinges with 3/8" Type 316 stainless steel hinge pins ensure smooth operation and superior corrosion resistance.
- Latch: Slam latch with exterior and interior turn handles and padlock hasps provides convenient access options.
- Lift-Assistance: Compression spring operators enclosed in telescopic tubes offer controlled opening. An automatic hold-open arm with grip handle release allows for ease of use.
- Finish: Mill-finish aluminum provides a clean and professional aesthetic.
- Hardware: Compression spring tubes: Aluminum-engineered composite for lightweight construction with steel compression springs packed in grease for long-lasting performance. Hinges: Type 316 Stainless steel for superior corrosion resistance. Other Hardware: Zinc-plated for added durability.
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.
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