It serves as an extension of the wall by which the roof is supported.
Flat roof parapet repair.
As a roof ages the roofing seams begin to separate often beginning where the flat roof meets the parapet wall.
This gives the roofs of building a flat roof look.
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.
Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot.
This video is about making a transition form a flat roof to a parapet wall with taracotta clay caps.
Parapet walls offer protection against fire because they impede the spread of fire by making a boundary on slanting roof.
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.
Roof membrane temperatures ottawa canada summer day.
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.
Parapet walls are a practical solution for providing a boundary between neighboring properties roofs.
Many flat and low slope roofs are surrounded by parapet walls.
Just enough slope to drain water but also flat enough to be a problem if not constructed properly.