Minimum Roof Parapet Height

The minimum height of a parapet above any wall anchor shall be 12 inches 305 mm.

Minimum roof parapet height.

When conditions warrant the height of the top edge may exceed the 45 inch height provided the guardrail system meets all other criteria of this paragraph. T 1 t 2 equal or less than 200. However when a roof slopes down toward an exterior wall and parapet with a slope greater than 2 12 further analysis is required to determine if a taller parapet is necessary. 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.

Cavity wall thickness and parapet heights thickness parapet height h to be not more than. 1926 502 b 1 top edge height of top rails or equivalent guardrail system members shall be 42 inches 1 1 m plus or minus 3 inches 8 cm above the walking working level. Minimum of 12 to top of parapet. Unfortunately many buildings get close to this height without quite meeting the height required by osha to provide fall protection.

In order for a roof parapet to provide adequate fall protection a roof parapet railing should be at least 42 in height. The minimum height of a parapet wall above the roof surface is 30 inches. T 1 t 2 greater than 200 equal to or less than 250. A parapet height of 29 inches where employees are exposed to falls from a roof does not comply with the height requirement in 29 cfr 1910 23 e 1 and can not be considered acceptable by osha.

Standards 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. 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. Height of roofing at wall. There are several solutions to help you raise the height of your parapet that are cost effective and aesthetically pleasing.