What's actually causing this
Exterior paint peels when moisture gets beneath the paint film. This happens from inadequate caulking around windows and trim, missing or blocked soffit vents (causing interior moisture to push outward), or applying new paint over a dirty or glossy surface.
What you'll need
Links go to Amazon search results — buy the part that matches your specific model. Uncle AI earns a small commission on purchases, at no extra cost to you.
- Paint scraper Shop →
- Pressure washer or scrub brush Shop →
- Exterior wood primer Shop →
- Exterior paint Shop →
- Caulk and caulk gun Shop →
Step-by-step fix
-
1
Address the moisture source first
Check caulking around windows, doors, and trim. Ensure gutters are directing water away from the wall. Check that soffit vents are clear.
-
2
Scrape all loose paint
Use a paint scraper to remove all peeling paint. Don't just paint over loose areas — the new paint will peel within months.
-
3
Clean the surface
Wash the entire area with a pressure washer or scrub with a trisodium phosphate (TSP) solution. Let dry fully — at least 24 hours.
-
4
Sand and feather edges
Sand the edges of the scraped areas with 80-grit sandpaper to eliminate hard lines. Smooth bare wood with the direction of the grain.
-
5
Prime and paint
Apply an oil-based or stain-blocking exterior primer to all bare wood. Let cure per the product spec (usually 24 hours). Apply two coats of exterior paint.
Roofing and siding contractors in Miami typically charge $90–160/hr. Roof replacement averages $6,000–15,000, while siding replacement runs $8,000–25,000+ depending on material and home size.
Roofing and exterior work typically requires Miami permits and inspections. Get quotes from at least two licensed contractors.
Stucco over concrete block is standard and hurricane-resistant. Hurricane shutters and impact windows are common. Metal roofing is increasingly popular for durability. Siding elevates homes for flood risk. Corrosion from salt air is extreme on all metal fixtures.
UV radiation in Miami is among the highest in the U.S. — roof shingles, paint, and exterior sealants degrade faster than national averages. Expect 15–20% shorter roof lifespans. Severe storm exposure means roof inspections should happen after every major weather event, not just annually.
DIY in Miami: Miami's strict Florida licensing requirements, hurricane codes, and environmental hazards make DIY repairs very restricted. Homeowners should hire licensed professionals for plumbing, electrical, and HVAC. Coastal properties require special knowledge and materials.
- Peeling covers more than 30% of the surface — full repaint is needed.
- You find rotted wood beneath the paint.
- Lead paint is suspected — home was built before 1978 (test before sanding).
- The surface is above the second story.
Let Uncle AI diagnose it first.
Describe the problem. Uncle AI asks the right questions and tells you exactly what's broken — and whether you should fix it yourself or call someone in Miami.
Start free diagnosis →