Flat Roof Sealants and Coatings

Roofers typically use high-solids silicone, elastomeric acrylics, and dedicated primers on flat roofs. Silicone coatings are applied to areas subject to ponding water, while elastomeric basecoats bridge cracks and provide flexibility across seams. Commercial contractors frequently pair flexible basecoats with reflective acrylic topcoats like SolarEx 300 to protect built-up roofing, modified bitumen, metal, concrete, and single-ply membranes against UV exposure and weather.

Yes, SolarEx roof coatings adhere to metal, concrete, masonry, wood, asphalt, built-up roofing (BUR), modified bitumen, and single-ply membranes such as TPO, EPDM, and spray polyurethane foam (SPF). Applying a liquid-applied restoration coating over properly prepared existing substrates creates a continuous waterproof barrier, eliminating the need for expensive roof tear-offs and reducing commercial building disruption.

Silicone coatings such as SiliconEx 500 feature a moisture-cure formula that forms a hydrophobic, 100% waterproof barrier. Unlike water-based coatings that may soften under prolonged standing water, silicone provides permanent resistance to ponding water. This prevents moisture intrusion at low points and drains on flat and low-slope roofs, maintaining adhesion and protective integrity through severe weather cycles.

SolarEx flat roof sealants and coatings can be applied using a brush, roller, or airless sprayer. For large commercial projects, airless spray application—such as spraying at 3,000 PSI or higher for acrylics—ensures uniform coverage and efficient project turnaround. Products are available in 5-gallon pails, 55-gallon drums, and pallet quantities to accommodate both spot repairs and large contractor installations.

Reflective coatings such as SolarEx 300 and TropEx 310 utilize high-reflectivity pigments to reflect UV and infrared radiation away from the roof surface. SolarEx silicone coatings reflect up to 88% of solar radiation. By preventing rooftop heat absorption, these cool roof systems reduce interior heat transfer and lower air conditioning loads, helping building owners reduce overall utility bills.

Elastomeric acrylic coatings, such as ElastEx 200 and SealEx 100, provide high elongation up to 500% to bridge cracks and accommodate substrate expansion and contraction. Silicone coatings, like SiliconEx 500, offer solvent-free moisture-cure chemistry with permanent resistance to ponding water. In many restoration systems, elastomeric basecoats are paired with reflective topcoats for combined tensile flexibility and UV defense.