Peeling or blistering paint
Moisture, poor adhesion, contamination or an incompatible coating can separate the paint film from the background.
What a useful investigation should establish.
A proposal is more useful when it explains the likely cause, the evidence, the affected construction and why a particular repair is being considered.
- Inspect moisture, adhesion, friable surfaces, cracks, mould and previous coating type.
- Confirm plaster, fillers, sealants and repairs have cured sufficiently for the selected finish.
- Agree protection, access, colour, sheen, sample areas and the expected level of surface preparation.
- Choose compatible primers and coatings for the substrate and exposure, including permeable options where needed.
Options, not assumptions01 02 03 04
How the repair may be approached.
Protect and prepare
Cover retained surfaces, remove loose material, clean contamination and feather or fill defects to the agreed standard.
Prime the actual substrate
Bare plaster, stains, metal, timber and previously painted surfaces can need different primers or sealers.
Apply a compatible coating system
Coats, drying intervals and environmental conditions should follow the manufacturer’s data.
Inspect and complete
Consistent coverage, clean lines, cured repairs and agreed snagging are checked before handover.
Important limitation
Paint is not a damp-proofing system. Active leaks, mould conditions, unstable plaster and structural cracks need to be resolved first. “Breathable” is not a single performance category, so coating choice should be matched to the wall and repair build-up.