Flat Roof Scupper Leaks

Scuppers drains on flat roofs are prone to leakage.

Flat roof scupper leaks.

Scupper in good shape. Scuppers are perfect for getting water off a roof but if water flow is restricted and water backs up into the scupper again that will cause leaks. Sealing the most critical part of your roof the draining area scupper hope you like it guys. Flat roof leaks are common because of many factors.

The most likeliest cause of leaks is flashing. Scuppers flat roof repair the cause of a major leak was due to incorrect leader headers on the other side of the wall. Drains can be placed strategically in many areas of the roof. Wherever there is a transition from the roof surface to an object like a vent pipe wall or drain flashing is present.

Combine the two of them and its almost a gurantee there will we cracking in the corners of smooth stucco scuppers. Greetings from ca usa eric. The sketch at left common leak points at flat roof drainage systems. If it is wide enough the scupper will not get clogged with leaves.

Click to enlarge any image scupper drains become blocked by leaves or other debris through building drains upper right in the sketch become clogged internally and burst flooding the building or leaks occur around the drain itself where it penetrates the roof. This scupper is way to small for the size of this flat roof. Inner drainage systems can t be seen from outside. When you look for what is causing the leak then look at cracks at all the flashing on the roof.

Smooth stucco is prone to cracking. With rainstorm debris and leaves get washed off the roof low maintenance inexpensive a roof will not get flooded as in a drain or gutter.