Drain Checks and Sump Repairs
The drain check is the simplest and most useful item in the file. We lift each strainer, clear debris, flush the line where access allows, and watch how fast the water leaves. A slow drain is recorded even when it clears, because slow drainage often means a partial blockage downstream or a pipe that has narrowed.
Sump problems are common on older roofs. The membrane around a drain can lose its bond, shrink away from the bowl or tear at the clamping ring. We repair the connection with materials matched to the system, replace damaged clamping rings and reset sumps that sit above the surrounding slope. Each repair is photographed before and after, and the log records the drain's position on the roof plan.
Interior evidence is part of the check. Stained ceiling tiles below a drain, damp insulation at a roof-drain pipe and condensation on the line itself all suggest a leak at the sump or a problem in the pipe. We ask facilities staff for any interior reports and mark the location on the plan. When an overflow event has already happened, the emergency response clears the blockage first and the repair follows.