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Product Spec Sheet: 
30" x 54" Ship Stair Access Thermally Broken Roof Hatch Railing System - Bilco
While the Type NB permits more effortless movement of maintenance personnel, tools, and equipment, it is still necessary to add a permanent means of fall protection using our Type RL2-NBTB Ship Stair Access Thermally Broken Roof Hatch Railing System.
This product resists harmful condensation and provides superior energy efficiency, making it perfect for roof hatches installed in rooftops or roof decks. It has a standard 2'-6" x 4'-6" frame opening with a left-hand swing gate location. For weather and corrosion-resistance, this product comes with 1 ¼" schedule 40 pipes in 6061 T6 aluminum alloy rails and aluminum post supports.
It has a self-closing gate for security and more comfortable access, paired with corner brackets and stainless steel pin hinges. When installed, the top of the rail is set 42" above the roof surface or deck. Avail this product and get all the parts and fasteners as part of the package.
Buy the Type RL2-NBTB today in high-visibility safety yellow finish! BestRoofHatches offers standard and special sizes to ensure that we can meet your unique needs.