Flat Roof Parapet Height

Height of roofing at wall.

Flat roof parapet height.

Top of parapet below cap to be sealed with fluid applied flashing. Measuring a flat roof on a typical commercial building with a parapet can be arduous and complicated. There are several solutions to help you raise the height of your parapet that are cost effective and aesthetically pleasing. Like any roof with batt.

Do not lap tpo over top of parapet unless required by unique construction conditions. The minimum height of a parapet wall above the roof surface is 30 inches. 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.

The assembly is straight forward but what complicates matters is that the roof needs to be vented. In order for a roof parapet to provide adequate fall protection a roof parapet railing should be at least 42 in height. The parapet itself is standard wood framing with an applied siding in this case t g 1 4 cedar. First of all commercial and multi unit residential buildings are a lot bigger than single family homes in most cases.

2015 ibc code commentary. The parapet height may have to have a minimum height if it is part of a fire rated assembly between units depending upon the use and classification of the structure. The height of the building is calculated to the highest roof element not the parapet or mechanical protrusions vents chase etc. At the highest point of the sloped roof the parapet is about 10 tall at the lowest point the parapet is about 14 tall.