A roof hatch with a single leaf that includes several innovative features:
The PIR insulation is CFC and HCFC free, ODP zero and has a GWP rating of less than two. The roof hatch has a weather protected exterior push button handle and a smooth action interior handle. All roof hatch detail sizes below are "internal clear opening" dimensions.
The roof door has doubled looped steel tabs that can be securely padlocked from the exterior or interior for added security options. The 343mm roof hatch access upstand has a 102mm base for an easy installation and an integral flashing for weatherproofing. All edges are rounded for safety. The hinges are hardened steel security hinges.
The Roof Hatch door is counter balanced with two fully enclosed, counter balanced gas strutt, complete with an automatic lock open arm built, in to one strutt. The roof hatch has an olive green primed finish, that needs a top coat, but can be powder coated in a specified RAL colour, at an extra over cost.