Flat Roof Parapet Repair

Courtesy of max baker and the national research council of canada.

Flat roof parapet repair.

Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot. Parapet walls offer protection against fire because they impede the spread of fire by making a boundary on slanting roof. This video is about making a transition form a flat roof to a parapet wall with taracotta clay caps. This gives the roofs of building a flat roof look.

It serves as an extension of the wall by which the roof is supported. 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. Roof membrane temperatures ottawa canada summer day.

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. 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. Just enough slope to drain water but also flat enough to be a problem if not constructed properly. 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.