Minimum Parapet Height Flat Roof

Garya505 november 19 2014 10 26pm 1.

Minimum parapet height flat roof.

Some look like they re maybe 4 inches or so. 2015 ibc code commentary. Minimum of 12 to top of parapet. Bs 6229 2003 flat roofs with continuously supported coverings code of practice and bs 8217 2005 reinforced bitumen membranes for roofing code of practice both state that if unwanted water ingress into the building is to be avoided all weatherproofing upstands occurring around the roof area.

Which would include abutments rooflights and service vents etc must have a minimum height of 150mm. In order for a roof parapet to provide adequate fall protection a roof parapet railing should be at least 42 in height. Height of roofing at wall. This dimension should be measured from the finished surface of the roof which would.

How high does a roof parapet need to be. Unfortunately many buildings get close to this height without quite meeting the height required by osha to provide fall protection. I ve seen numerous references to a minimum flashing height of 8 inches for flat roofs yet when i look at some roofs and photos of roofs i see skylights with curbs that are way less than 8 inches high. 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.

The minimum height of a parapet wall above the roof surface is 30 inches.