Concrete Roof Waterproofing

The best waterproofing depends on specific exposure conditions. Moisture-cure silicone coatings like SiliconEx 500 offer permanent ponding water resistance, UV stability, and seamless protection. For multi-layer protection, elastomeric basecoats such as SealEx 100 offer high elongation and strong concrete adhesion, functioning effectively standalone or paired with cool roof topcoats to guard against leaks, weathering, and thermal movement.

Yes, 100% silicone formulations like SiliconEx 500 adhere directly to concrete and masonry surfaces. This solvent-free, single-component moisture-cure coating forms a seamless, 100% waterproof membrane that resists permanent ponding water, severe weathering, and UV radiation. It is engineered for flat and low-slope concrete roofs, restoring existing surfaces without requiring complete substrate tear-off or replacement.

Elastomeric basecoats like SealEx 100 and ElastEx 200 deliver high elongation and crack-bridging flexibility over concrete substrates. Their high-solids, low-shrinkage formulations accommodate structural movement and temperature changes without rupturing. They provide superior adhesion to concrete and masonry, establishing a seamless foundation that resists wear, moisture infiltration, and weathering before receiving reflective acrylic finish coats.

Yes, acrylic coatings such as SolarEx 300 and TropEx 310 can be applied to concrete and masonry surfaces. TropEx 310 provides elastomeric flexibility with ASTM D6083 compliance, while SolarEx 300 delivers high UV and infrared solar reflectivity. For complete waterproofing systems, acrylic topcoats are typically paired with an elastomeric undercoat or basecoat to ensure flexible, watertight protection.

Cure times vary depending on the specific product formulation. For example, elastomeric basecoats like SealEx 100 achieve skin-over within 4 to 6 hours and fully cure in 24 hours under normal application conditions. Moisture-curing silicone systems such as SiliconEx 500 begin curing upon contact with ambient humidity to form a durable, watertight membrane across concrete substrates.

SolarEx concrete roof coatings can be applied using a brush, roller, or airless sprayer depending on project scale and surface geometry. For instance, acrylic coatings like SolarEx 300 are compatible with airless spray equipment operating at 3,000 PSI or higher, while elastomeric and silicone coatings can be easily brushed, rolled, or sprayed to create seamless coverage.