Parapet Roof Measurements

Height of roofing at wall.

Parapet roof measurements.

Also there may be several roof penetrations and other obstacles that should be factored into the measurement. 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. 2015 ibc code commentary.

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. 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. In order for a roof parapet to provide adequate fall protection a roof parapet railing should be at least 42 in height.

First of all commercial and multi unit residential buildings are a lot bigger than single family homes in most cases. The minimum height of a parapet wall above the roof surface is 30 inches. Do not lap tpo over top of parapet unless required by unique construction conditions. 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.