Find the water path through the building
An interior damp area may relate to a wall, joint, roof connection or another exterior assembly. The timing of water entry, the affected locations and previous repairs help focus the assessment.
The investigation should distinguish observed defects from suspected sources. Repeated sealing at the same visible stain may leave the actual entry point unresolved if water is reaching it from elsewhere.
Prepare and repair the affected assembly
Waterproofing work can include removal of failed material, preparation of the supporting surface and installation of a compatible repair system. Connections and terminations, where the system ends or meets adjacent materials, are part of that scope.
The appropriate approach depends on the materials and conditions found. Define the affected areas, access needs and any adjoining wall, roof or drainage work before selecting products or pricing the repair.
Check the work and plan follow-up
Agree on the observations or testing included in the project and any limitations that remain. If concealed conditions require further work, document them and the proposed change before closing the area.
Retain treated locations, product information and relevant maintenance guidance. A useful record explains what was repaired and gives the next investigation a starting point if water entry recurs.
What to compare in a written proposal
- Assessed assembly and condition
- Preparation and compatible system
- Terminations and adjacent-trade work
- Included checks and maintenance information