Coatings & Epoxy Floors
Epoxy Floors and Concrete Coatings
Epoxy floor systems and concrete coatings protect garage floors, patios, and driveways from Texas heat cycling and moisture infiltration.
Updated October 11, 2026
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The short version
- Epoxy and concrete coatings protect garage floors, patios, and driveways, and the prep decides how long they last.
- Concrete needs moisture testing and a surface profile of 2 to 3 before any coating goes on.
- Standard epoxy can blister or peel, often within 6 to 12 months, when moisture vapor rises through the slab.
- Polyurea and polyaspartic top coats handle Texas heat and sun better than standard epoxy.
- Coat floors last: roof and exterior work come first, and flatwork comes after.
Planning a garage floor or patio coating? Use Get Help or call or text 512-575-5052.
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Surface Coating Options
Floors and flatwork that last in Texas heat.
Our baseline for floor coatings is Sherwin Williams: the ArmorSeal epoxy family, including water based ArmorSeal 8100 rated for residential floors, H and C Shield Crete for garage floor epoxy, and Porch and Floor Enamel where a painted floor is the right call. Coatings are the one category where the system matters more than the brand, so where a project calls for a polyurea or polyaspartic topcoat or another specialty product that handles Texas heat better than standard epoxy, we specify the manufacturer that fits the job, and some projects draw on other brands for that reason.
Sherwin Williams systems are the floor baseline, with polyurea or polyaspartic topcoats where heat and sun are strong.
Epoxy Garage Floors
Broadcast flake and solid epoxy systems. Surface prep is critical, moisture testing and proper etching before any coating application.
Polyurea/Polyaspartic
Fast-cure, UV-stable coating systems that out-perform standard epoxy in Texas heat. Applied as top coat over epoxy base or as standalone system.
Patio and Driveway Coatings
Concrete staining, sealing, and overlay systems for exterior flatwork. Slip-resistant finishes appropriate for Texas rainfall conditions.
Works With Roofing
Coating flatwork before addressing roof drainage, downspout discharge, or exterior painting means potential moisture infiltration from above can destroy a new coating from underneath. The right sequence is roof and exterior first, flatwork last.
Texas Climate Considerations
Standard epoxy systems were not designed for Texas UV intensity or the concrete movement caused by 100°+ summer heat cycling. Polyurea and polyaspartic systems handle these conditions better, faster cure, UV stability, and flexibility. Round Rock area concrete also has higher moisture vapor transmission than cooler markets, making moisture testing before any coating application non-negotiable.
Substrate Behavior
Why concrete preparation determines coating performance
Moisture vapor, heat and a too-smooth surface cause most coating failures, so testing and grinding come first.
Moisture Vapor Transmission
Concrete slabs in the Round Rock area sit above clay soils that retain moisture through the summer. Moisture migrates upward through the slab as vapor pressure, a process called MVT (moisture vapor transmission). Standard epoxy coatings are vapor-impermeable. When MVT rates exceed coating tolerance, vapor pressure builds beneath the film and produces blistering, bubbling, and delamination, often within 6 to 12 months of application. Proper protocol requires moisture testing at the slab surface before any coating application, not after the job starts.
Thermal Expansion & Outgassing
Concrete garage floors in Texas reach surface temperatures of 130 to 150°F in direct summer sun. Standard epoxy has a glass transition temperature of approximately 120°F, above that threshold the coating softens and loses structural integrity. Polyurea and polyaspartic top coats maintain performance above 200°F and are the correct choice for unconditioned garages in this climate. Applying standard epoxy without a UV-stable top coat in a Texas garage produces a floor that works for one summer and fails by the second.
Surface Profile & Adhesion
Coating adhesion requires mechanical bond, the concrete surface must have a CSP (concrete surface profile) of 2 to 3, achieved through acid etching or diamond grinding. Troweled or power-floated concrete is too smooth for adequate coating adhesion regardless of product quality. Oil contamination from vehicles is another failure source: oil penetrates concrete at depths that acid etching cannot fully reach. Contaminated areas require degreasing, re-etching, and spot testing before any coating application. These are pre-job steps, not optional upgrades.
Where We Work
Epoxy floors and coatings in Round Rock and nearby towns
The Roof Shepherd is based in Round Rock and works anywhere in Texas. These are the towns closest to home.
Surface Coating FAQs
Common questions about surface coatings in Texas
Does the Texas climate affect how long epoxy floor coatings last?
Yes. UV exposure, temperature cycling from 20°F to 110°F, and concrete slab movement from clay soil expansion all affect coating adhesion and lifespan. Systems installed with proper surface prep and UV-stable topcoats (polyurea or polyaspartic) outperform standard epoxy in Texas conditions significantly.
Should floor coating happen before or after roofing work?
After. If a roof replacement or repair is planned, complete that first. Concrete dust, debris, and traffic from roofing work can damage fresh coatings. The same sequencing applies to gutter work and any drainage modifications that affect the garage or driveway.
What is the difference between epoxy and polyurea/polyaspartic coatings?
Epoxy is a slower-cure, cost-effective system that works well in temperature-controlled environments. Polyurea and polyaspartic are fast-cure, UV-stable, and more flexible, better suited to Texas temperature extremes and direct sunlight exposure on patios and driveways. The right choice depends on the surface, usage, and exposure.
Can surface coatings be repaired if they chip or peel?
Spot repairs are possible but visible unless the full surface is refinished. Proper surface prep at installation, mechanical grinding, moisture testing, crack filling, is the main factor in avoiding early failure. Coatings that peel usually had adhesion issues at the concrete interface, not in the coating itself.
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Why do some garage floor coatings bubble or peel after a year?
The most common cause is moisture vapor transmission from below the slab. Concrete in the Round Rock area sits above clay soils that retain moisture, and that moisture migrates upward as vapor. Standard epoxy is impermeable, vapor pressure builds beneath the coating and lifts it. The fix is pre-application moisture testing, not a better product. A coating system selected without testing the slab will fail at the same rate regardless of price.
What surface preparation is actually required before coating a concrete floor?
The concrete must reach a CSP (concrete surface profile) rating of 2 to 3 through acid etching or diamond grinding. Smooth troweled surfaces will not bond adequately regardless of product. Oil contamination requires degreasing and re-etching. These are pre-job requirements, not optional upgrades. A coating applied to inadequate prep will delaminate, the preparation step determines the result more than the product selection does.
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