Roof Access Stair Hatch

Type l roof hatches 30 x 96 762mm x 2438mm are ideal for installations where frequent use may be expected.

Roof access stair hatch.

All products feature engineered lift assistance for easy one hand operation. Recommended minimum sizes for various types of roof access are shown above. For ultimate corrosion resistance and outstanding exterior durability babcock davis provides powder coat finish. When the length of a hatch reaches 5 5 or longer a 2 point slam lock is used.

A type l roof hatch permits easier movement for maintenance personnel tools and equipment from a full size stairway. Type l roof hatch service stair access. Hatches of length 4 6 or less are equipped with a 1 point zinc plated cablock and any hatch longer than this are equipped with a 2 point cablock. These hatches are generally larger in order to accommodate the installation or removal of equipment or machinery into a building.

Nystrom s complete line of roof hatch and safety products meet building codes fire and life safety requirements. Galvanized or aluminum acudor ship stair roof hatches are designed to provide convenient economical access to the roof of a building for maintenance. Such hatches shall be located within the stair enclosure and be provided with a stationary noncombustible access ladder or alternating tread device. U w 0 319 w m k.

A variety of special sizes are also available to provide an accessible way to install or remove large pieces of equipment from a building. These hatches are typically located over a ladder or staircase that provides access to the roof. Nystrom roof hatches provide safe and convenient access to commercial building roof areas using interior ladders and stairs. As the angle of ascent decreases the hatch must be larger to prevent head bumping accidents.

Bilco roof hatches provide safe and convenient access to roof areas by means of an interior ladder ship stair or service stair. The rht roof hatches thus have a full thermally broken curb and cover and a proven high insulation value of. If movement of bulky materials through the hatch is anticipated double leaf. Babcock davis roof hatches provide safe and convenient access to commercial building roof areas using interior ladders and stairs.

All open roof hatches regardless of size or. Service stair access service stair access roof hatch. In buildings in occupancy group r 2 complying with item 4 of section 1021 2 roof access shall be governed by item 4 6 of such section. This minimises the chance of condensation forming and guarantees energy cost savings.

If a ladder is used the hatch may be rather small since the person comes straight up to the roof. Each roof hatch is tested in the plant to assure smooth opening and closing with one hand. Available in galvanized steel aluminum or stainless steel construction.