Parapet Roof Measurements

Unfortunately many buildings get close to this height without quite meeting the height required by osha to provide fall protection.

Parapet roof measurements.

Minimum of 12 to top of parapet. 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. In order for a roof parapet to provide adequate fall protection a roof parapet railing should be at least 42 in height. Skymeasure is a property measurement service created by roofing experts for roofing experts that provides a new level of accuracy simplicity and affordability.

This is in response to your letter of january 28 1983 concerning perimeter protection at setback roof levels. First of all commercial and multi unit residential buildings are a lot bigger than single family homes in most cases. Top of parapet below cap to be sealed with fluid applied flashing. 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.

2015 ibc code commentary. Also there may be several roof penetrations and other obstacles that should be factored into the measurement. Do not lap tpo over top of parapet unless required by unique construction conditions. Height of roofing at wall.