Parapet Roof Measurements

Minimum of 12 to top of parapet.

Parapet roof measurements.

Height of roofing at wall. This is in response to your letter of january 28 1983 concerning perimeter protection at setback roof levels. 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. Measuring a flat roof on a typical commercial building with a parapet can be arduous and complicated.

Top of parapet below cap to be sealed with fluid applied flashing. The minimum height of a parapet wall above the roof surface is 30 inches. Skymeasure is a property measurement service created by roofing experts for roofing experts that provides a new level of accuracy simplicity and affordability. 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.

Unfortunately many buildings get close to this height without quite meeting the height required by osha to provide fall protection. 2015 ibc code commentary. Know your measurements before you arrive and gain the confidence you need to expedite critical projects without ever having to set foot on a roof. In order for a roof parapet to provide adequate fall protection a roof parapet railing should be at least 42 in height.