Flat Roof Parapet Repair

It serves as an extension of the wall by which the roof is supported.

Flat roof parapet repair.

This new torch on flat roof is leaking because the parapet walls and the coping stones are defective water damage to the ceiling below from the leaking ceil. This video is about making a transition form a flat roof to a parapet wall with taracotta clay caps. Courtesy of max baker and the national research council of canada. Roof membrane temperatures ottawa canada summer day.

Just enough slope to drain water but also flat enough to be a problem if not constructed properly. The slope should be a minimum of 1 in 80 but in practice a minimum slope of 1 to 40 should be used to allow for deflection of the roof and for normal building tolerances. For clarity flat roofs actually have a slight slope to allow rain water to drain off the roof but they seem flat when compared with more traditional steeply sloped roofs. Many flat and low slope roofs are surrounded by parapet walls.

As a roof ages the roofing seams begin to separate often beginning where the flat roof meets the parapet wall. If you didn t get it right you concentrated the stresses at roof edges and you could suck in a parapet or tear or rip a membrane at the parapet photographs 3 and 4. Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot. This short repair video shows how to tie in a flat roof to a parapet wall with an l flashing using only surecoat roof coating and poly mesh.