Homeowner Education
What Is Roof Coating?
Definition: Roof coating is a liquid-applied elastomeric, polyurethane, or silicone membrane sprayed or rolled directly onto an existing roof surface. It cures into a seamless, fully-adhered rubber layer that waterproofs the roof, reflects UV heat, and — in test-verified systems — adds wind uplift resistance. In Florida, a professional roof coating extends the life of tile, flat, metal, and shingle roofs at up to 60–70% less than the cost of full replacement.
Roof Coating vs. Roof Paint
| Roof Paint | Roof Coating | |
|---|---|---|
| Thickness | 2–5 mils | 20–40+ mils |
| Waterproofing | Minimal — decorative | Seamless waterproof membrane |
| Lifespan | 2–3 years | 10–25 years depending on system |
| Warranty | None / limited | Manufacturer warranties up to 50 years by grade |
| Hurricane performance | None | RP3 Roof Shield: Dade County Certified TAS-106 Uplift Test |
Cost note: all Roof Store prices include labor and materials; coating typically runs up to 60–70% less than full roof replacement. The complete Factory Price Sheet is emailed when you fill out the contact form.
How a Coating System Is Installed
- Inspection & assessment — tile type, condition, and candidacy are confirmed in person before any work.
- Pressure cleaning & soft washing — algae, mold, and dirt are stripped so the coating bonds fully.
- Preparation & priming — loose tile, ridge caps, and surface imperfections are addressed and primed.
- Multi-coat application — coats are built up to the manufacturer's mil-thickness specification, forming one seamless membrane.
Frequently Asked Questions
What is roof coating?
Roof coating is a liquid-applied elastomeric, polyurethane, or silicone membrane sprayed or rolled directly onto an existing roof surface. It cures into a seamless, fully-adhered rubber layer that waterproofs the roof, reflects UV heat, and — in test-verified systems — adds wind uplift resistance. In Florida, a professional roof coating extends the life of tile, flat, metal, and shingle roofs at up to 60–70% less than the cost of full replacement.
Is roof coating the same as roof paint?
No. Roof paint is a thin decorative coating (2–5 mils) with minimal waterproofing that lasts 2–3 years. Roof coating is a thick liquid-applied rubber membrane (20–40+ mils) that cures into a seamless waterproof surface, carries manufacturer warranties, and — in The Roof Store's RP3 Roof Shield system — hurricane wind uplift performance verified by the Dade County Certified TAS-106 Uplift Test.
What roofs can be coated?
Structurally sound tile (Spanish, S-tile, barrel, flat cement), flat/low-slope, metal, and shingle roofs can all be coated. Roofs with rotted decking or widespread structural damage are not candidates — which is why every job starts with an in-person inspection.