PVC Roofing
PVC Roofing in Hoover, AL
Grease on a roof is a budget problem with a timer on it. Kitchen exhaust leaves a film. The film softens the wrong sheet. A softened sheet leaks in a season or two. PVC resists that exposure. In Hoover, AL we use welded PVC on roofs with restaurants, hotel kitchens, labs and heavy equipment. Here is what it costs, where it earns its price and when a cheaper sheet is the better call.
PVC is a single-ply sheet. Seams are welded with hot air into one membrane. The result is watertight when the crew does the work right.
The issue: what is on the roof besides rain
Rain is the easy part. The harder loads come from the building. Kitchen exhaust fans spit grease. Cooling towers drip treated water. Labs vent chemicals. Pool rooms push humid air up through the deck. All of it lands on the membrane.
Many sheets handle none of this well. Fats and oils can swell and soften them. PVC is formulated to resist that exposure, which is why it is the usual choice near fans and vents. Where the roof has no such loads, a lower-cost sheet may serve. We check what is on the roof before we name a system.
Heat makes it worse. Exhaust hits the sheet warm, and a hot surface absorbs more grease. Through a summer with roughly two months of 90-degree days, the area around a fan runs well above air temperature. We watch that zone first when we inspect any restaurant roof.
What it costs: PVC against the alternatives
PVC usually costs more than TPO or EPDM per square foot. The extra buys chemical resistance, strong welds and a long record on restaurant and hotel roofs. Where grease is present, the extra often pays back in avoided replacement.
The bid has four lines: sheet, insulation, details and labor. Details cost more on PVC roofs with many penetrations, since each boot is a hand weld. Labor is skilled work. We show all four lines. If only the area near the kitchen needs PVC, we price a hybrid with PVC near the fans and a lower-cost sheet elsewhere, with proper transitions.
Warranty terms deserve a line. A manufacturer may require grease containment, annual inspection or specific details at fans before it covers a food-service roof. We read those terms with you before bidding, so the price already includes whatever it takes to keep coverage.
Storm season: wind, hail and the sheet
Dixie Alley covers the Birmingham area. Storms come most often in spring, with a second run in November and early December. Tornadoes hit the area in 1977, 1998 and 2011. On April 25, 2003 a hailstorm dropped stones up to softball size on central Alabama.
PVC sheets resist wind with dense attachment at edges and corners. Hail can bruise insulation under any thin membrane, so we price a cover board where storms are a concern. After a hard storm we walk the perimeter, probe the seams and check the fan curbs. Our hail damage repair work documents what we find for your insurer.
Debris is the other risk. A tornado watch can send tree limbs and signs across a roof, and a PVC sheet punctured by a limb leaks quickly. Patches weld in fast when the sheet is clean. We carry PVC patch stock on the truck for that reason, so a storm call ends in a dry roof the same day.
By building: where PVC fits
Think of the restaurants along US 280 in Inverness and the hotel in the Riverchase Galleria complex. Think of shopping areas such as Patton Creek on the Highway 150 corridor, wherever a food tenant vents onto the roof. Think of medical and lab buildings with vents on the roof. PVC fits where the roof carries exhaust, chemicals or heavy traffic.
A restaurant roof often needs more than a sheet. It needs grease trays under fans, walk pads on service routes and drains that stay clear. Around Riverchase that means grease control first. Where heat and oil are both heavy, KEE roofing, a PVC-alloy sheet, is the next step up.
When to do it: the calendar
Install in late winter or early spring, ahead of storm season, or in fall. Hot-air welding works in a wide range of temperature, but cold, wet or dirty surfaces cause bad welds. Kitchens run through the holidays, so fall work is best finished before late November.
For a restaurant, we plan around service hours. Tear-off and hoisting happen early. Fan shutdowns are scheduled with the kitchen manager and kept short. Each section is closed the same day. A good plan keeps the kitchen open and the roof dry from the first morning to the last.
More on PVC Roofing
Recommendation: how to decide
Ask three questions. What vents onto the roof? How long do you plan to own the building? What does a leak cost you in lost business? If exhaust is heavy and you plan to stay, PVC is hard to beat. If the roof is a simple, dry box, TPO may do the job for less.
We put both prices on paper, along with the warranty terms and the care plan, and hand you a short comparison with costs, expected service and the budget year. A repair of the failed zone alone can be the better move, so we price commercial roof repair too.
One more point. When the kitchen is remodeled, the roof changes too: a new fan, a moved hood, a longer duct run. Call us before the work starts. A curb flashed right at the time of the remodel costs far less than one fixed after the first leak.
Commercial Roofing Questions
Why does PVC cost more than TPO?
The raw material and the formulation cost more, and welds on hand-detailed areas take skill. In return you get stronger resistance to fats, oils and many chemicals. If your roof has none of those loads, you may not need it. We price both and tell you which one the roof calls for.
Can I put PVC over my old roof?
Sometimes. A recover over a dry, sound old roof saves tear-off, and the PVC sheet goes over a suitable cover board. Many old sheets are not compatible with PVC, so a separation layer may be needed. A moisture scan and a few cores decide whether it works, and we show you the results.
How do I protect a PVC roof from kitchen grease?
Use grease trays under exhaust outlets and empty them on a schedule. Add walk pads on service routes. Keep the drains clear. Wash the surface near the fans when it gets visibly dirty. These steps are cheap and stretch the life of the sheet. We write them into the care plan so the staff knows what to do.
How are PVC seams checked?
With a probe along the weld edge and a visual check for even flow of melted material. Weak spots feel soft or lift under a gentle test. We probe every lap at the install and again at the one-year walk. Any open seam gets re-welded. The seam log goes in your close-out package.
What is the difference between PVC and KEE?
KEE is a PVC-alloy sheet with a modifier that helps it keep flexibility and resist oils and heat. PVC alone resists many chemicals and works well on most food-service roofs. KEE costs more and fits roofs with heavy oil, fuel or high exhaust heat. We check what is on the roof and recommend the lower-cost sheet that meets the load.
Related Roofing Work
Hail Damage Roof Repair
Inverness
Highway 150 Corridor
Riverchase
Emergency Leak Calls
Call for a roof walk and a PVC price
We will walk the roof, check what vents onto it and price PVC next to a lower-cost sheet. The visit pins down which zones need PVC and which can use something simpler.