Inspect roof coverings, flashing, terraces, gutters, drains, sealants and interior moisture signs. Request prior leak and repair records, and verify completed waterproofing with appropriate inspection and testing before accepting the work.
Which areas should be inspected?
- roof coverings and joints;
- flashing and penetrations;
- terraces and balconies;
- gutters and downpipes;
- ceilings and wall moisture.
Which records matter?
- contractor reports;
- warranties;
- repair invoices;
- photographs;
- testing and completion records.
Related reading: the house defect and warranty checklist, the flooding and monsoon season guide, and the property water-leak response checklist.
If interior moisture signs appear, also see the property mold and moisture checklist and, for condo units, who is responsible for a condo water leak.
Continue through Residences, Owners and the directory.
Inspect before the rainy season.
Treat the roof and drainage system as one water path.
Find inspection supportFrequently asked questions
Should the roof be checked during dry weather?
Yes, but combine the inspection with moisture evidence and prior leak history.
What records should be requested?
Ask for repair, warranty, contractor and leak-history records.
Should repairs be water-tested?
Use an appropriate inspection and testing method before accepting completion.
Sources & References
- Department of Public Works and Town & Country Planning
- Thai Industrial Standards Institute
- Office of the Consumer Protection Board
Primary and official sources are cited above. Government rules, fees and procedures in Thailand change over time and vary by office; always confirm current requirements with the relevant authority before relying on them. BAANLYY never takes paid placement in editorial content.
