An interior stain can provide clues without revealing the exact exterior failure.
The inspection may need to check the roof area upslope from the stain along with nearby walls, flashing and penetrations.
This is particularly important when a leak appears only during heavy or wind-driven rain.
Roofing Material Condition
Older roofing does not always deteriorate evenly.
Exposure, previous repairs and roof geometry can leave some sections in better condition than others.
A repair decision should reflect the specific area being worked on.
Metal Roof Service
Metal roofs can be evaluated for:
- fastener condition on applicable systems;
- seams;
- flashing;
- penetrations;
- panel damage;
- previous repairs.
Localized metal-roof failures can often be addressed separately from the entire roof.
Replacement
If different parts of the roof continue developing new problems, replacement may be a more efficient use of the project budget than repeated trips for unrelated repairs.