Metal Roof Coating
Metal Roof Coating in Houston
Fluid-applied coating systems that stop leaks, kill rust, and add 10 to 20 years of life to your metal roof at 40 to 60 percent less than replacement. Certified applicators for IPC, Karnak, Everest Systems, and Western Colloid.
Why Metal Roofs Leak in Houston
Metal is a great roof until the details give up. In Houston, a panel can swing from morning-cool to well over 150 degrees by afternoon, and that daily expansion and contraction slowly works the whole system loose. The panels themselves usually have plenty of life left. It is everything holding them together that fails.
Fasteners back out
Daily thermal movement works screws loose, enlarges their holes, and dry-rots the rubber washers. A typical metal roof has thousands of fasteners, and every one is a potential leak.
Seams open up
Panel laps, ridges, and transitions move with the metal. The original stitch screws and butyl tape eventually give, and wind-driven rain finds every gap they leave behind.
Rust sets in
The factory galvalume finish sacrifices itself for years, then wears through. Once bare steel meets Gulf Coast humidity, corrosion moves fast.
Flashings and penetrations fail
Pipes, curbs, skylights, and edge metal are where most leaks actually start. Chasing them one tube of caulk at a time is a treadmill, not a repair.
What Fluid-Applied Restoration Actually Is
A fluid-applied restoration is not a coat of paint. It is an engineered roof system installed as a liquid: cleaning and prep, a rust-inhibitive primer, reinforced treatment over every seam, fastener, and penetration, and then a full-field elastomeric topcoat built up to a specified thickness. When it cures, your entire roof is one seamless, waterproof, highly reflective membrane with no laps to open and no fasteners exposed to the weather.
Because it goes over the existing panels, there is no tear-off, no dumpsters, no exposed building, and no weeks of noise over your tenants. Most metal restorations finish in days, and the building stays open the whole time.
Our 5-Step Metal Restoration Process
Pressure wash and prep
We wash the entire roof down to a clean, sound surface and degrease anything the coating needs to grip. Adhesion is everything, so prep gets treated like its own job.
Fastener pass
Every backed-out screw gets tightened or replaced, and failed washers get swapped. Tightening a stripped screw accomplishes nothing, so where threads are gone we upsize the fastener.
Rust-inhibitive primer
Rusted areas and previously painted panels get a primer coat that locks down oxidation and guarantees the topcoat bonds. This is the step cheap coating jobs skip, and it is why they fail.
Seam and detail treatment
Brush-grade sealant or fabric-reinforced base coat goes over every seam, fastener head, curb, and penetration. This is where the labor lives, because this is where metal roofs actually leak.
Full-field topcoat
The finish coats are applied to the mil thickness your warranty requires, checked as we go, and photo-documented like everything else we do.
Silicone, Acrylic, or Fabric-Reinforced?
Silicone
The default for low-slope metal with ponding water or brutal sun exposure. Silicone shrugs off standing water and UV better than anything else we install.
Acrylic
The workhorse for sloped metal that sheds water fast. Highly reflective, easier on the budget, and the chemistry both of our Texas manufacturers build their metal systems around.
Fabric-Reinforced
Polyester fabric embedded in the coating over the seams or the entire field. The call for older roofs with more movement, and for owners who want a membrane they can renew with a recoat instead of ever replacing.
Plenty of Houston metal roofs get a hybrid: reinforced details everywhere, silicone where water sits, acrylic where it drains. The roof tells us which system it needs. We do not decide that from the office.
The Systems We Install
We are certified applicators for four fluid-applied manufacturers, and we picked them deliberately. Two of the four make their coatings right here in the Houston metro, formulated for exactly the heat, humidity, and storm cycles your roof lives in.
Manufactured in Houston, TX
Everest Systems
A full line of acrylic, silicone, and urethane systems manufactured in Houston, including dedicated metal primers, rust bleed-blockers, and a PVDF topcoat for color-critical roofs. Warranties up to 20 years.
Manufactured in Pearland, TX
IPC
Cross-linked acrylic systems made in Pearland, minutes from many of the buildings we coat. IPC metal restorations have earned 20-year no-dollar-limit warranties that include 2-inch hail coverage.
Clark, NJ
Karnak
A family-owned manufacturer with a dedicated metal roof restoration system, a high-solids silicone, and products third-party certified by UL, FM, and the Cool Roof Rating Council. Warranties from 5 to 20 years.
Made in California
Western Colloid
Fluid Applied Reinforced Roofing: coating layered with polyester fabric into a seamless membrane that weighs about a pound per square foot. Warranties up to 20 years, renewable with a recoat instead of a tear-off.
What It Costs
Straight numbers, because that is how this decision actually gets made.
A real-world example
Restoring a 20,000 square foot warehouse roof typically lands between $70,000 and $140,000. Replacing that same roof can clear $300,000 before you count the disruption to your operation.
Then there is the energy side. An uncoated metal panel can run 170 degrees or hotter on a Houston summer afternoon. A bright white reflective coating can cut that surface temperature by 50 degrees or more, and your cooling bill feels it immediately.
One more conversation worth having before you sign anything: coating work is often handled differently on your books than a capital roof replacement, and Section 179 now covers certain commercial roof improvements. We are roofers, not accountants, so take that question to your CPA. It is worth asking.
When We Won't Coat Your Metal Roof
Coatings only work over a structurally sound roof. If your panels have rusted through, the decking is soft, or the insulation underneath is saturated, a coating just hides a problem that is still getting worse. That is why every project starts with a free on-roof assessment, and it is why we have walked away from coating jobs and recommended replacement instead. You will get the honest answer either way, with photos to back it up.
Warranties That Actually Mean Something
Installed to spec by a certified applicator, the systems we use carry manufacturer-backed warranties from 10 to 20 years, with no-dollar-limit coverage available on qualifying roofs. That means the manufacturer, not just your contractor, stands behind the roof. And when the warranty window closes, most of these systems can be cleaned and recoated to start the clock again. Done right, this can be the last roof decision the building ever forces on you.
Recent Coating Work
Metal Roof Coating FAQs
How much does metal roof coating cost in Houston?
Most metal roof restorations in the Houston market run $2.50 to $5.00 per square foot depending on panel condition, how much seam and fastener work is needed, and the warranty length you want. A full replacement typically starts around $8 to $15 per square foot. We give you an exact number after a free on-roof assessment.
How long does a metal roof coating last?
The systems we install carry manufacturer-backed warranties from 10 to 20 years depending on the applied thickness. At the end of that window, most of these roofs can be cleaned and recoated for a fraction of the original cost, which restarts the clock without a tear-off.
Can you coat a rusty metal roof?
Usually, yes. Surface rust gets cleaned and locked down with a rust-inhibitive primer before any coating goes on. What we will not do is coat over rust-through, soft decking, or saturated insulation. If the panels are structurally gone, we will tell you that honestly.
Is coating better than replacing a metal roof?
If the roof is structurally sound, coating usually wins on cost, speed, disruption, and energy performance. If it has widespread rust-through or deck damage, replacement is the honest answer. Our free assessment tells you which side of that line your roof is on, with photos to back it up.
Will a roof coating lower my energy bills?
A bare metal panel can run 170 degrees or hotter on a Houston summer afternoon. A bright white reflective coating can cut that surface temperature by 50 degrees or more, which reduces the heat driving into your building and the load on your cooling equipment.
Do roof coatings come with a real warranty?
Yes. Installed to spec by a certified applicator, these systems carry manufacturer-backed warranties up to 20 years, with no-dollar-limit options available on qualifying roofs. That is the manufacturer standing behind the roof, not just your contractor.
Related Services
Schedule Your Complimentary Roof Assessment
We'll walk your roof, take photos, and give you straight answers. No pressure, no gimmicks.