Published July 23, 2026
No single lifespan
Orientation, shade, salt, sprinklers, roof runoff, substrate, old coatings, and preparation vary by home.
Preparation controls adhesion
Washing, chalk removal, drying, scraping, sanding, caulk, cracks, and compatible primer create the foundation.
Product and film build matter
The coating must suit the substrate and exposure and be applied at the recommended coverage.
Maintenance helps
Gentle cleaning, trimming vegetation, correcting leaks, and resealing failed joints can slow deterioration.
Warning signs
Peeling, blistering, cracks, exposed material, persistent mildew, and open joints need evaluation.
Get advice for your specific surface
General guidance cannot diagnose hidden moisture, unknown coatings, structural cracks, or access. A project estimate should be based on actual conditions.