The L-50TB is an ideal Roof Access Hatch for installations where frequent access to the roof area is expected from full sized stairs with standard headroom.
At 760x2440mm, the L-50TB enables easier movement of maintenance personnel, tools and equipment to and from the roof area (Patent pending).
Features / Benefits
Thermally broken cover and frame design provide superior thermal performance.
Engineered with compression spring operators to provide smooth, easy, one-hand operation, regardless of size. All BILCO hatches meet the requirements of Manual Handling Regulations.
Automatic hold-open arm locks the cover in the open position to ensure safe egress. Grip handle allows for easy, one-hand release and closing.
Overlapping cover design, fully welded corners on cover and curb, closed-cell EPDM rubber gasket, and fully insulated cover and curb ensure weather tightness and energy efficiency.
Constructed with corrosion-resistant materials to provide many years of trouble-free, dependable service.
Heavy gauge construction and positive latching mechanism maintain building security. Curb features the Bil-Clip® Flashing System, an innovative method to quickly and easily secure single-ply roofing material to BILCO roof products.
Guide Specification L-50TB
MATERIAL |
Cover and frame are 2.3mm Aluminium
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COVER |
Brake-formed, hollow-metal design with 75mm concealed polyisocyanurate insulation, 127mm beaded overlapping flange, fully welded at corners, and internally reinforced for 195 kg/m² live load.
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CURB |
305mm in height with integral capflashing, 75mm polyisocyanurate insulation, fully welded at corners, and 140mm mounting flange with 11mm holes provided for securing frame to the roof deck.
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GASKET |
Extruded EPDM rubber gasket permanently adhered to cover. Air leakage performance 4.83m³/hr/m² @ 600Pa Tested to BS EN 12207: 2000
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HINGES |
Heavy-duty pintle hinges with 9.5mm Stainless Steel Type 316 hinge pins.
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LATCH |
Slam latch with interior and exterior turn handles and padlock hasps.
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LIFT ASSISTANCE |
Compression spring operators enclosed in telescopic tubes. Automatic hold-open arm with grip handle release.
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FINISH |
Mill finish Aluminium
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HARDWARE |
Plated steel compression spring tubes with steel compression springs packed in grease. Stainless Steel Type 316 hinges. All other hardware is zinc plated/chromate sealed.
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Weight |
138Kg
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NOTES |
National Physical Laboratory U-Value test report available upon request. Patent pending.
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For more information on L-50TB 760x2440mm Service Stair Access Roof Hatch talk to Bilco UK Ltd