

Services commonly specified for patios. The final system is confirmed after we assess the concrete on site.
See all residential floor coatings options.
Outdoor concrete in Ontario goes through repeated freeze-thaw cycles and snow. A rigid coating over a slab that moves or holds water can crack or delaminate. Flexible membrane systems designed for exterior traffic are better suited, and drainage matters as much as the product. We assess slope, cracking and the slab's condition first, and in some cases sealing or leaving it bare is the better recommendation.
Related: exterior polyaspartic coatings and waterproofing systems.
Outdoor surfaces face freeze-thaw, snow clearing, de-icers and UV. Systems designed for exterior use, installed on a properly prepared slab that drains, perform far better than interior coatings applied outside. Snow-clearing methods matter too — metal shovel edges and some de-icers are harder on a surface. We'll tell you what the product is designed to resist, what maintenance it needs, and where the limits are.
Related: exterior polyaspartic coatings and waterproofing systems.
A membrane system is built in layers: a flexible waterproofing membrane that can stretch with the concrete's movement, then a textured wear course, then a UV-stable topcoat. It's used where water getting into or through the slab matters — over living space, on porches and landings, or where a surface needs to stay walkable through changing seasons. Joint and crack detailing is part of the system, not an afterthought.
Related: parking garage traffic coatings.
Polyaspartic coatings provide substantially greater UV stability than many traditional epoxy coatings. Properly specified systems are designed to resist yellowing and maintain color consistency under direct sunlight exposure.
Related: UV-stable floor coatings.
Scaling is loss of the top layer of concrete, usually in patches, and is commonly linked to freeze-thaw exposure with de-icing salts. Cracking is a break through the slab, which can come from shrinkage as the concrete cured, settlement, or movement. Most garage cracks are shrinkage cracks and can be treated before coating. Cracks that are widening, uneven across the break, or accompanied by settlement are a different matter, and a structural engineer should look at those before any coating decision is made.
Related: concrete repair and restoration.
