Roof Waterproof Membranes and Systems

Liquid-applied membrane systems provide superior waterproofing because they eliminate failure-prone seams and mechanical fasteners. Silicone systems deliver dependable moisture-cured barriers that resist UV degradation and standing water. Elastomeric acrylic coatings bridge existing hairline cracks while offering UV resistance. Combining elastomeric basecoats with reflective topcoats creates a complete waterproof barrier suitable for metal, built-up, concrete, and single-ply roofs.

Certain liquid-applied membranes can be applied by experienced building owners using standard equipment like brushes, heavy-nap rollers, or commercial airless sprayers. Proper surface preparation, thorough cleaning, and following manufacturer coverage rates are essential for lasting performance. For complex commercial roof restorations or extended warranty requirements, professional application by a commercial contractor is typically recommended to ensure uniform film thickness.

The most effective approach involves addressing structural leaks and sealing substrate seams with a high-solids primer or basecoat before applying a continuous topcoat membrane. Utilizing a system such as SealEx 100 or ElastEx 200 topped with a reflective silicone or acrylic finish creates a monolithic barrier. This restores weathered roofing materials without costly structural tear-offs.

SolarEx membrane formulations are engineered for widespread substrate compatibility. Systems bond securely to weathered built-up roofs (BUR), modified bitumen, standing seam metal, concrete, masonry, wood, spray polyurethane foam (SPF), and single-ply membranes including TPO and EPDM. This versatility enables facility managers to restore diverse building structures without complete roof replacement.

Silicone membranes, such as SiliconEx 500, are solvent-free, single-component, moisture-curing formulas designed specifically to withstand permanent ponding water without softening. Elastomeric acrylic membranes, like ElastEx 200 and TropEx 310, are water-based, low-VOC coatings featuring high tensile strength, crack-bridging elasticity up to 500 percent elongation, and exceptional solar reflectivity for sloped roofing systems.

SolarEx liquid waterproofing membranes are formulated for flexible jobsite application using a brush, roller, or heavy-duty airless spray equipment operating at 3,000 PSI or higher. Products are available in multiple packaging configurations, ranging from 5-gallon pails for patch repairs to 55-gallon drums and bulk pallets designed for large commercial roofing contractor installations.