Nobody expects to repaint the outside of a house every three years. But it happens constantly in Jamaica, and the usual conclusion is that the paint was no good.
Occasionally that is true. Far more often the paint was fine and the surface underneath it was never properly prepared — or there was water getting in that nobody dealt with.
Read The Failure, Not The Wall
How paint fails tells you why it failed. Learn to read it and you will know what actually needs fixing.
Peeling in sheets, back to bare surface
The paint never bonded. Either the surface was dusty, chalky or damp when it was applied, or bare patches were never primed. This is a preparation failure, and repainting over it will produce exactly the same result.
Blistering and bubbling
Water vapour is pushing out from behind the film. Something is wetting that wall from the other side — a plumbing leak, a failed roof seal, a blocked gutter overflowing, or ground moisture wicking up. The paint is a symptom. Fix the water first.
Chalking — powder on your hand
Normal ageing. UV has broken down the binder at the surface. It is not a failure as such, but you cannot paint over chalk. It must be washed off thoroughly or the new coat has nothing to grip.
Cracking that follows a pattern
Hairline cracks in the render moving through the paint film. Standard paint cannot bridge them. This is what elastomeric coatings exist for.
Dark streaks, especially on shaded walls
Mould and algae. This is living growth, not dirt, and painting over it does nothing — it grows back through the new coat within a season.
Mould has to be killed, not covered. Painting over it — even with paint that claims to be mould-resistant — is money thrown at a wall. The growth continues underneath and comes back through. Treat it, let it dwell, wash it off, and only then paint.
Preparation Is Most Of The Job
On a proper exterior repaint, the majority of the labour happens before the first coat of colour goes on. That is not padding. That is the part that determines whether you are back doing this again in three years or in ten.
- Wash down to remove dirt, chalk and salt residue
- Treat mould and algae at the root, then rinse
- Scrape and sand back everything loose
- Cut out and fill cracks properly
- Patch and make good damaged render
- Sand filled areas flush with the surface
- Prime all bare and repaired areas
- Let everything dry fully before coating
Skip any of those and you have built the next failure into the job.
Choosing For This Climate
Jamaican exteriors face intense UV, driving rain, high humidity and — near the coast — salt. That combination is harder on a paint film than almost anything a temperate climate produces.
For walls with any history of hairline cracking, an elastomeric coating is worth the extra cost. It stays flexible and bridges movement instead of splitting over it. On flat concrete roofs, use a proper waterproofing system rather than roof paint — different product, different job, considerably longer life. And on grille work and gates, the rust-inhibiting primer matters far more than the topcoat.
Wash Before You Paint. Always.
A pressure wash is not a separate nice-to-have — it is step one of the paint job. It removes the chalk, the mould spores, the dust and the salt, and it exposes any damage hiding under all of it.
We schedule pressure washing and painting back to back with proper drying time between, so you are booking one job with one contractor rather than trying to coordinate two.
Need Painting Done Properly?
NASTIC covers painting for homes and businesses across all 14 parishes, with written quotes before we start and our workmanship guarantee behind every job.