Concrete Roof Coating

All Concrete Roofs Crack

Lexis Coatings can keep it Leak Free

Concrete roofs will eventually develop cracks that will cause leaks. What’s worse, cracks can occur below the surface and the porosity of concrete slab allows moisture to penetrate and cause roof leaks that are difficult to isolate. A seamless concrete roof coating system provides a watertight solution and allows the concrete to breathe.

Choosing Concrete Roof Coatings

EnergyGuard^® Silicone Roof Coating

EnergyMax^® Silicone Roof Coating (High Solids)

White, solvent-borne, silicone rubber roof coating. Recommended for low-slope concrete roofs. [CRRC, Energy Star (EnergyGuard only) & UL]

EnergyGuard^® Acrylic Roof Coating

EnergyMax^® Acrylic Roof Coating (ASTM D-6083)

White, water-borne, acrylic roof coating. Recommended for low-slope concrete roofs that don’t pond water. Easy clean up with water. VOC-compliant. [CRRC, Energy Star, UL]

About Andersen AFB

Lexis Coatings worked closely with the engineers of Andersen AFB during the testing and development stages of the roof repair specifications for this roof. Various product combinations were tested and Lexis Coatings passed with flying colors.

The existing "non-Lexis" silicone coating had to be stripped from the cracks down to bare concrete to facilitate the repair. There were minor cracks radiating from the main crack that wasn't visible before the coating was removed.

The resulting system is a double-reinforced, EnergyGuard®/EnergyMax® dual silicone system.

How to Coat Concrete

Add 10 more years to your concrete roof and keep it leak free at the same time.
- Concrete must be cured We like to see a full 30 day cure at 75° F.
- Clean the Roof Thoroughly Remove all grease, dirt, loose paint, oil, tar, glaze, laitance, efflorescence, loose mortar and cement using one of the following methods:
- Roof must be Dry Concrete must be free of moisture as much as possible. Moisture seldom drops below 15% in concrete. Test for dampness by taping 4 edges of an 18"x18" black plastic sheet (large trash bags, heavy black rubber mat work very well) for about 16 hours and inspect for moisture, condensation, discoloration on the concrete or under the plastic sheet.
- Surface, atmospheric and material temperature must be at least 50°F during application.
- Protect Bare Concrete Prevent exposed concrete from getting wet. If rain is expected, consider applying PrimeLock® Epoxy Primer to retard moisture absorption.
- Coat the Roof Apply 2 coats of EnergyGuard® Roof Coating or EnergyMax® Roof Coating to the entire concrete roof surface to form a seamless protective membrane.
For detailed instructions, please read our Concrete Roof Restoration Specifications for more information. Sounds easy right?

Concrete Roof Coating

All Concrete Roofs Crack

Lexis Coatings can keep it Leak Free

Choosing Concrete Roof Coatings

EnergyGuard® Silicone Roof Coating

EnergyMax® Silicone Roof Coating (High Solids)

EnergyGuard® Acrylic Roof Coating

EnergyMax® Acrylic Roof Coating (ASTM D-6083)

EnergyGuard^® Silicone Roof Coating

EnergyMax^® Silicone Roof Coating (High Solids)

EnergyGuard^® Acrylic Roof Coating

EnergyMax^® Acrylic Roof Coating (ASTM D-6083)