This minimises the chance of condensation forming and guarantees energy cost savings.
Roof access stair hatch.
U w 0 319 w m k.
When the length of a hatch reaches 5 5 or longer a 2 point slam lock is used.
Each roof hatch is tested in the plant to assure smooth opening and closing with one hand.
Rht gorter roof hatches provide safe roof access combined of course with exceptional insulation.
Type l roof hatch service stair access.
Double leaf or two cover roof hatches are also available on the market.
Nystrom roof hatches provide safe and convenient access to commercial building roof areas using interior ladders and stairs.
Babcock davis roof hatches provide safe and convenient access to commercial building roof areas using interior ladders and stairs.
Available in galvanized steel aluminum or stainless steel construction.
For ultimate corrosion resistance and outstanding exterior durability babcock davis provides powder coat finish.
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.
All products feature engineered lift assistance for easy one hand operation.
Such hatches shall be located within the stair enclosure and be provided with a stationary noncombustible access ladder or alternating tread device.
A type l roof hatch permits easier movement for maintenance personnel tools and equipment from a full size stairway.
These hatches are typically located over a ladder or staircase that provides access to the roof.
If a ladder is used the hatch may be rather small since the person comes straight up to the roof.
For ultimate corrosion resistance and outstanding exterior durability nystrom provides powder coat finish.
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.
A variety of special sizes are also available to provide an accessible way to install or remove large pieces of equipment from a building.
All open roof hatches regardless of size or.
These hatches are generally larger in order to accommodate the installation or removal of equipment or machinery into a building.
Recommended minimum sizes for various types of roof access are shown above.
Galvanized or aluminum acudor ship stair roof hatches are designed to provide convenient economical access to the roof of a building for maintenance.
As the angle of ascent decreases the hatch must be larger to prevent head bumping accidents.
If movement of bulky materials through the hatch is anticipated double leaf.
Nystrom s complete line of roof hatch and safety products meet building codes fire and life safety requirements.
The rht roof hatches thus have a full thermally broken curb and cover and a proven high insulation value of.
