Roof Access Hatch – Commercial (RAH-C) are available in 18 standard sizes with special sizes available to order; up to a maximum size of 1000mm x 3300mm. The Ladderway access hatch provides access for vertical ladders, with the larger Ladderway sizes available to facilitate the easy movement of equipment into and out of a building. The Stairway access hatch provides access to stairs, and the length of opening provides headroom for use with stairways from 30° to 75°.
They may be supplied with clear or opal diffused polycarbonate, bringing the benefit of natural daylight into the building; or with a solid insulated cover available in mill finish aluminium or coated to any standard RAL colour. They are available with aluminium upstands 300mm high, finished white polyester powder coated internally as standard and insulated externally with PIR 60 mm insulation giving an exceptionally robust and thermally efficient performance. They are also available with an adaptor base to install directly to the top of a builders upstand curb.
Polycarbonate Multiwall 20mm: 1.66
Solid Insulated Cover 20mm: 1.40
Upstand aluminium: 0.36
Fire Rating to BS 476: Part 3: AA
Impact Resistance – soft body: 1200 Joules
Impact Resistance – soft body: Class B
Sound Resistance: 28 dB
Upward Load: 1500 N
Downward Load: 1000 N
Water Tightness: Pass
Air Permeability: Pass
|Models||Maximum Size||Lid Finishes|
|18 Sizes||1000mm x 3300mm||Polycarbonate or solid insulated|