Flat Roof Scupper Leaks

The sketch at left common leak points at flat roof drainage systems.

Flat roof scupper leaks.

Corners on windows doors and scuppers are prone to cracking. Drains can be placed strategically in many areas of the roof. 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.

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. Drain pipes are inside the building and therefore will not freeze during winter. Scuppers drains on flat roofs are prone to leakage. If it is wide enough the scupper will not get clogged with leaves.

Flat roof leaks are common because of many factors. The most likeliest cause of leaks is flashing. Scupper in good shape. Greetings from ca usa eric.

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. 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.

This scupper is way to small for the size of this flat roof. 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.