Building Regulations Roof Access Hatch

If left open the hatch can pose a serious fall hazard.

Building regulations roof access hatch.

The opening size of the roof hatch should be considered and should not exceed 1000 x 1000mm. In order to be the right hatch to meet the regulations it needs to have a u value of 0 35 or lower. For more information about current building regulations and standards please contact gbc solutions. Every 50mm of roof construction depth requires 56mm added to the length of the opening.

They are present on most nonresidential buildings. Where opening width accommodates double stair width minimum internal skylight length reduces to 2 4m for a 900mm landing. Overall these are the regulations which govern the requirements for loft hatches and access panels within properties and buildings. Larger openings can be used however consideration must be given to the ease of opening and closing the cover.

While they provide great convenience to building personnel unattended roof hatches left in the open position can be dangerous. Roof hatches known sometimes as roof scuttles are designed to allow workers safe access to roof areas for hvac equipment maintenance roof renovations etc. Thusly workers need to often go to the roof and over the edge to wash the windows. A roof access hatch must also be able to be held open by an external device so it cannot close on itself and cause injury.

Where a stairway is provided to a roof access to the roof shall be provided through a penthouse complying with section 1510 2 of the california building code. The building owner would then want to provide safe access to the roof via a stair or alternating tread device check the building code for that provide fall protection on the roof and provide a davit system for window washing equipment. 1009 16 2 protection at roof hatch openings. A private stair in one dwelling permits a maximum pitch of 42 degrees.

In buildings without an occupied roof access to the roof shall be permitted to be a roof hatch or trap door not less than 16 square feet 1 5m2 in area and having a minimum dimension of 2 feet 610 mm.