Roof Parapet Height

With it parapet walls are indicated automatically on the roof sketch as flattened panels similar to an unfolded pizza box.

Roof parapet height.

Roof membrane temperatures ottawa canada summer day. If you didn t get it right you concentrated the stresses at roof edges and you could suck in a parapet or tear or rip a membrane at the parapet photographs 3 and 4. Unfortunately many buildings get close to this height without quite meeting the height required by osha to provide fall protection. Courtesy of max baker and the national research council of canada.

The height of the parapet shall be not less than 30 inches 762 mm above the point where the roof surface and the wall intersect. Osha construction regulations require guardrails for elevated work 6 feet or more above the ground to be a height of 42 inches 1 1 m plus or minus 3 inches 8 cm 29 cfr 1926 502 b 1 www osha gov pls oshaweb owa disp show document p id 10758 p table standards. If a reinforced concrete beam is provided at the top of the wall the minimum height above the wall anchor may be 6 inches 152 mm. Where building parapet heights exceed 42 inches special provisions shall be employed to provide a safe means of access to the top of the parapet for rigging purposes if such access is necessary to the safe performance of the work.

Accounting for roof penetrations when dealing with parapet walls the extra material needed to cover the vertical surface of the inside face of the parapet isn t the only added factor to take into consideration. There are several solutions to help you raise the height of your parapet that are cost effective and aesthetically pleasing. This is in response to your letter of january 28 1983 concerning perimeter protection at setback roof levels. Parapet corrective work must be performed in conjunction with the installation of tension roof anchors.

G parapets of excessive height.