Silicone Roof Coatings for Commercial Roofs
Silicone roof coating is a liquid-applied, moisture-cure membrane rolled over a sound existing roof to add 10 to 20 years of service life without a tear-off. It is ponding-water tolerant, UV-stable, and reflective, which makes it the lowest cost per year of added life for aging West Texas flat roofs. Coating is the wrong call over a wet or hail-fractured substrate, and we prove the substrate is dry and sound before we coat.
- 10 to 20 years
- Yes, unlike acrylic
- High
- Low, building stays open
- Days, not weeks
- Lowest of all systems
Coating before replacement
The U.S. Department of Energy reports that reflective roof coatings can lower roof surface temperature by up to 50 degrees Fahrenheit on hot days, reducing the cooling load beneath.
A sound substrate is the only requirement. When core cuts show dry insulation and the membrane or metal is aging but not failed, a silicone or acrylic coating adds 10 to 20 years of service at a fraction of replacement cost, with far less disruption to operations. There is no crane, no open deck, and no tear-off to landfill.
Coating is the wrong answer in three cases we see often in Lubbock. The first is a saturated deck, where coating traps moisture and accelerates rot. The second is a hail-fractured membrane, where coating hides the evidence and can void an insurance claim. The third is a roof already at its second layer, where the International Building Code does not allow another. We prove the substrate is dry and sound before we coat, and we say when replacement is the call instead.
Compare coated versus replacedHow a coating roof is done right
Substrate verification
Core cuts and moisture survey prove the deck is dry and the membrane is sound, not fractured.
Cleaning and drying
Surface pressure-washed and dried, because coating bonds to substrate, not dirt.
Seam and flashing detail
Seams, penetrations, and fasteners detailed with fabric reinforcement where movement occurs.
Mil application
Coating applied at manufacturer mil thickness, verified with a wet mil gauge during application.
Two-coat cross-lay
Second coat applied perpendicular to the first for uniform coverage and no thin spots.
Walk and warranty
Final walk with the owner, photographs filed, manufacturer warranty registered with exclusions listed up front.
Documented silicone and restoration scopes
Silicone coating questions
What is a silicone roof coating?
A silicone roof coating is a liquid-applied, moisture-cure elastomeric coating rolled or sprayed over a sound existing roof substrate. It cures to a seamless, reflective membrane that resists ponding water and ultraviolet light, adding 10 to 20 years of service life without a tear-off.
When is coating the right call in Lubbock?
Coating is the right call when core cuts show dry insulation and the existing membrane or metal is aging but not fractured. It is the lowest cost per year of added service life. It is the wrong call when the deck is saturated, the membrane is hail-fractured, or the roof is at two layers per the International Building Code, and we say so on site.
How long does a silicone roof coating last?
A high-solids silicone coating applied at the correct mil thickness typically lasts 10 to 20 years in the West Texas climate, with a recoat option at end of life that costs less than the first application. Service life depends on substrate condition, mil thickness, and ponding management.
Can silicone coating hold up to ponding water?
Yes. Unlike acrylic, silicone is ponding-water tolerant, which matters on flat West Texas construction where standing water is the number one low-slope failure. Silicone does not re-emulsify under constant moisture, which is why it is specified where ponding cannot be fully drained.
What is the difference between silicone and acrylic coatings?
Silicone tolerates ponding water and UV but attracts dust which can dull reflectivity, requiring washing. Acrylic holds reflectivity better and costs less but fails under standing water. Acrylic is specified for sloped metal and membrane where drainage is reliable. Silicone is specified where ponding is a fact of the roof.
How is a coating roof prepared before application?
Preparation is most of the work. The roof is cleaned and dried, loose flashing replaced, seams and penetrations detailed with fabric reinforcement, and substrate condition verified with core cuts and a moisture survey. Coating is then applied at the manufacturer mil thickness and verified with a wet mil gauge.
Does a coating roof carry a warranty?
Manufacturer material warranties are available for coating systems applied by a certified applicator at the correct mil thickness over an approved substrate. Warranties cover the coating, not the underlying roof, which is why substrate verification comes first. Exclusions are listed before you sign.
Can you coat a TPO or metal roof?
Yes. TPO accepts a silicone or acrylic coating when the surface is aged, clean, and primed, extending life and adding reflectivity. Standing seam metal accepts coating after seam and fastener renewal. Coating a wet or fractured substrate traps moisture and accelerates failure, so preparation is non-negotiable.
How much does a silicone roof coating cost per square foot in Lubbock?
As of August 2026, typical installed silicone or acrylic coating ranges for sound South Plains commercial roofs are about $4 to $9 per square foot. Mil thickness, preparation, access, and detailing move the number. Coating is usually the lowest cost per year of added service life when the substrate is dry and sound.
How fast can a coating roof be installed?
A coating restoration is faster and less disruptive than a tear-off and replace, with no crane lifts and no open deck. Most Lubbock coating projects run days, not weeks, often while the building stays open. Weather is the main constraint, because coating needs a dry substrate to cure.
Get a condition report before you commit to a system.
Photographs, documented findings, and a written recommendation. Certificate of insurance available before contract.