Chemical-resistant single-ply · San Antonio, TX
Heat-welded PVC membranes that stand up to kitchen grease, oils and chemical exhaust. Installed, replaced and repaired on restaurants, hospitals, food plants and labs across the city.
Under a minute. A project manager calls you back within 2 business hours.
Something went wrong sending your request. Please call (210) 384-6843 or try again.
Request received
Prefer to talk? (210) 384-6843
From one restaurant hood to a whole hospital campus, welded by crews who know where grease goes.
Mechanically attached or fully adhered PVC on new buildings, additions and kitchens.
Grease-softened or worn roofs torn off and replaced, phased so kitchens keep cooking.
Seams, punctures and flashings repaired with hot-air welded patches, not mastic.
PVC around hoods and exhaust on a TPO or asphalt roof, with grease containment boxes.
Factory-made boots, corners and curb wraps for roofs crowded with equipment.
Grease cleanup, seam checks and drain clearing on a set schedule.
Not all PVC is the same. Thickness, formulation and attachment decide how long it keeps its flexibility in our heat.
Membrane grades
Entry-level PVC for smaller or short-term roofs.
Our standard. 20-year warranties, good puncture resistance.
Thickest common sheet, up to 30-year warranties.
Ketone ethylene ester keeps the sheet flexible longer. Top chemical resistance.
How it is attached
Plates and screws in the seams. Fast, light and the lowest cost.
Bonded to the cover board. Quiet in wind, best over occupied space.
Large factory-welded panels and custom flashings mean fewer welds on the roof.
We install PVC from the makers with the longest track records and choose the formulation for what lands on your roof.
The numbers your architect, insurer or board will ask for.
| Membrane | Polyvinyl chloride, reinforced, ASTM D4434; KEE blends available |
|---|---|
| Thickness | 50, 60 or 80 mil (60 mil is our standard) |
| Seams | Hot-air welded, probed every day |
| Resistance | Animal fats, cooking oils, many chemicals and jet fuel residue |
| Colors & reflectance | White, tan, gray; white starts near 0.80 solar reflectance |
| Compatibility | Must be separated from asphalt and EPDM with a slip sheet or cover board |
| Wind uplift | FM-rated assemblies sized to ASCE 7 loads |
| Fire rating | UL / FM Class A assemblies; PVC itself is self-extinguishing |
| Service life | 25 to 35 years; 10 to 30-year manufacturer warranties |
We find every hood, vent and process stack and where its residue lands.
Old roof off one section at a time; deck checked; kitchen hours respected.
Polyiso and a cover board keep the PVC away from old asphalt.
Sheets fastened or adhered to the manufacturer’s wind pattern.
Every seam welded and probed; curbs, drains and stacks flashed in PVC.
Containment at exhaust fans, then the manufacturer’s warranty inspection.
Pros
Cons
Five quick questions. No email, no form.
Is the grease exhaust limited to one small corner of the roof?
Do kitchen hoods vent grease onto the roof?
Do chemicals, oils or fuel residue reach the roof?
Is the lowest price per square foot the goal?
Is the roof crowded with curbs and equipment?
Your answer
Answer the questions
We will tell you honestly if another system fits better.
Get a free assessmentWhere PVC is worth the extra over TPO in San Antonio.
Roofs with no grease or chemical exposure usually get better value from white TPO.
2026 installed prices per square foot, with one layer torn off and code insulation, unless noted.
Typical PVC replacement
$10.50 – $16/ sq ft
A 20,000 sq ft roof: about $210k – $320k
What moves the price
| Scenario | Per sq ft |
|---|---|
| PVC repair, one visitWelded patches, flashings | $650 – $4,000 |
| Recover over one roofCover board, no tear-off | $8.50 – $12 |
| Mechanically attached, 60 milR-25 insulation | $10.50 – $14 |
| Fully adhered, 60 milOver cover board | $11.50 – $16 |
| 80 mil or KEE upgradeLongest life, 30-yr warranty | +$1 – $2.50 |
| Grease containmentPer exhaust fan | $350 – $900 |
From River Walk kitchens to the Medical Center, inspections are usually on the roof the same day inside Loop 1604.
Something else? Ask a project manager.
In 2026 most PVC replacements cost about $10.50 to $16 per square foot with tear-off and code insulation. An 80-mil or KEE membrane adds about $1 to $2.50, and a recover over one sound roof costs less.
Only where grease, oils or chemicals reach the roof. There PVC lasts far longer. Without that exposure, TPO gives the same white surface and welded seams for about 10 to 20% less.
Animal fats and cooking oils soften asphalt, EPDM and TPO, which then blister, crack and leak around the exhaust fan. PVC resists them, and grease containment boxes keep most of it off the roof.
About 25 to 35 years with maintenance. Thicker sheets and KEE-enhanced PVC keep their flexibility longest in San Antonio’s heat.
Yes, with separation. PVC must not touch asphalt or EPDM, so we install a cover board or slip sheet between them. If the old roof is wet or there are already two layers, it has to come off.
Yes, and we often do. PVC goes around kitchen exhaust and TPO everywhere else, with a proper transition detail between them. It saves money on large roofs with one restaurant tenant.
Written by the crews who do this work. All articles
We walk the roof, map every exhaust and grease spot, cut a test core and send a photo report with repair and replacement prices.
Not sure it is PVC? Compare the systems we install.
