A roof coating is a fluid-applied, monolithic membrane installed over an existing, structurally sound roof — restoring waterproofing and reflectivity without the cost or disruption of a full tear-off. For the right roof, it’s one of the best return-on-investment moves in commercial roofing.
Silicone Coatings
Silicone has become the most widely used coating material in modern commercial roof restoration. It’s known for superior UV stability and resistance to ponding water, and it stays flexible over time rather than becoming brittle — which helps it absorb normal roof movement without cracking. Because it’s solvent-based rather than water-based, it also has a broader application window in colder conditions than acrylic.
Acrylic Coatings
Acrylic coatings have been used in commercial roof restoration since the 1950s and remain popular for good reason: they’re cost-effective, highly reflective, and easy to apply. Their main trade-off against silicone is weaker performance in areas prone to ponding water, where prolonged moisture contact can degrade the coating faster.
When a Coating Makes Sense
Coatings work as restoration for a roof that is structurally sound but aging — they extend service life and improve energy performance by increasing reflectivity, and they can work over most common commercial roofing systems, including EPDM, built-up, modified bitumen, and metal. They are not a fix for a roof with underlying structural damage or saturated insulation; a coating over a genuinely failing roof just delays an inevitable, and by then more expensive, replacement. A proper inspection — see our maintenance guide — should confirm the roof is a good coating candidate before you commit.