01
ROOF DECK
The deck provides structural support and must be evaluated for condition, attachment and moisture-related deterioration.
THERMOPLASTIC • WELDED SEAMS • COMMERCIAL LOW-SLOPE
PVC ROOFING IN ATLANTA, GA
PVC roofing is a thermoplastic single-ply membrane system known for heat-welded seams, reflective surface options and strong resistance to many chemicals, oils and grease exposures.
COMMERCIAL SINGLE-PLY
HEAT-WELDED SEAMS
CHEMICAL RESISTANCE
ATLANTA, GA
QUICK ANSWER • WHAT IS PVC ROOFING?
PVC is a reinforced thermoplastic single-ply roofing membrane used on low-slope commercial roofs. Seams and many flashing details are fused with hot-air welding equipment. PVC is often evaluated for restaurants, manufacturing, food service and other roofs where grease, oils or certain chemical exposures make membrane formulation and compatibility especially important.
PVC ROOF SYSTEM ANATOMY
WELDED WEATHERPROOFING. COMPATIBILITY STILL MATTERS.
PVC performance comes from the complete roof assembly, not simply from choosing a chemically resistant membrane. Deck condition, insulation, cover board, attachment, weld quality, perimeter securement, flashing details and drainage all need to work together.
02
INSULATION
Insulation affects energy performance and can be tapered to improve drainage around low areas.
03
SEPARATION / COVER LAYER
A compatible separator or cover board may be required based on the substrate, existing materials and system design.
04
PVC MEMBRANE
The reinforced thermoplastic sheet creates the exposed waterproofing surface and may be specified by thickness and formulation.
05
HOT-AIR WELDS
Field seams and many prefabricated or field-fabricated details are welded into the membrane system.
06
COMPATIBLE ACCESSORIES
Adhesives, sealants, flashings and contact surfaces must be appropriate for the PVC system and roof exposure.
WHERE PVC MAKES SENSE
A STRONG FIT WHEN THE ROOF FACES MORE THAN RAIN.
PVC is frequently considered on low-slope commercial roofs where grease, oils or certain chemical exposures are part of the environment. Restaurants, food-service facilities, manufacturing buildings and properties with exhaust discharge near the roof may benefit from evaluating PVC against other membranes.
- Restaurants and food-service properties
- Roofs exposed to grease or oil discharge
- Commercial kitchens with rooftop exhaust
- Industrial or manufacturing environments with compatible chemical exposure
- Projects wanting a light-colored thermoplastic membrane
- Low-slope roofs where welded details and drainage can be properly executed
PVC VS. OTHER SINGLE-PLY MEMBRANES
CHEMICAL RESISTANCE IS USEFUL. IT IS NOT THE ONLY DECISION.
| System | Type | Seams / Joints | Standout Advantage | Watch Closely |
|---|---|---|---|---|
| PVC | Thermoplastic single-ply | Heat welded | Chemical/grease resistance + reflectivity | Compatibility, welds, details, specification |
| TPO | Thermoplastic single-ply | Heat welded | Reflectivity + broad commercial use | Weld quality, drainage, puncture exposure |
| EPDM | Synthetic rubber single-ply | Tape / adhesive seams | Flexibility + large sheet sizes | Seams, punctures, dark surface heat gain |
| Modified Bitumen | Asphalt-based multi-layer | Product-specific laps | Redundancy + durable surface | Application method, weight, heat exposure |
OTHER COMMERCIAL ROOF SYSTEMS
COMPARE THE ALTERNATIVES BEFORE LOCKING THE SPECIFICATION.
The right system starts with slope, deck, drainage, rooftop use, exposure, existing materials and ownership goals. These related commercial roof systems solve different problems and should not be treated as interchangeable products.
01
TPO ROOFING
Thermoplastic single-ply with heat-welded seams for low-slope commercial roofs.
EXPLORE TPO ROOFING → 02
EPDM ROOFING
Synthetic-rubber single-ply roofing with flexible sheets and proven repair methods.
EXPLORE EPDM ROOFING →
03
MODIFIED BITUMEN
Reinforced asphalt-based sheets that create durable multi-layer low-slope assemblies.
EXPLORE MODIFIED BITUMEN →
04
BUILT-UP ROOFING
Multi-ply bitumen and reinforcement for redundant commercial waterproofing.
EXPLORE BUILT-UP ROOFING → 05
COMMERCIAL METAL
Panel and standing-seam systems built around movement, attachment and flashing control.
EXPLORE COMMERCIAL METAL →PVC INSTALLATION PRIORITIES
WELDS, COMPATIBILITY AND EXHAUST ARE PART OF THE SAME PLAN.
01
EXPOSURE REVIEW
Identify grease, oils, chemicals, exhaust discharge and service conditions before membrane selection.
02
SUBSTRATE REVIEW
Check deck, wet insulation, existing roof materials and whether separation layers are needed.
03
INSULATION + DRAINAGE
Set thermal layers, tapering and drain transitions to reduce standing-water conditions.
04
MEMBRANE INSTALLATION
Lay out and secure sheets according to the specified attachment method and fastening pattern.
05
HOT-AIR WELDING
Weld seams and details under controlled conditions and verify weld integrity during installation.
06
DETAIL PROTECTION
Address exhaust discharge, service paths, penetrations and incompatible materials so the membrane is not undermined after installation.
THE POINT:
PVC can be the right answer for a tough exposure, but “chemical resistant” is not a magic force field. The actual contaminant, concentration, temperature, exhaust location and accessory compatibility still need to be considered.
REPAIR, RECOVER OR REPLACE?
START WITH THE ROOF THAT IS ACTUALLY THERE.
Before recommending a commercial roof project, Ameristar Roofing can evaluate membrane or panel condition, moisture, insulation, deck concerns, drainage, penetrations, previous repairs and the remaining usefulness of the existing assembly.
A small leak does not automatically mean full replacement. The opposite is also true: a roof covered in patchwork is not automatically a good repair candidate just because another bucket of sealant can be purchased.
The decision should be based on the extent of deterioration, trapped moisture, attachment, recurring leak history, building plans and whether a repair or recover can reasonably restore dependable performance.
PVC ROOFING FAQS
THE QUESTIONS THAT SHOULD BE ANSWERED BEFORE THE PROJECT.
What is PVC roofing?
PVC roofing is a reinforced thermoplastic single-ply membrane system commonly used on low-slope commercial roofs. Field seams are typically joined with hot-air welding.
Why is PVC used on restaurants?
PVC is often considered where grease and oil exposure from kitchen exhaust is a concern because many PVC roof formulations provide strong resistance to those contaminants. Actual compatibility should still be confirmed for the project.
Is PVC roofing the same as TPO?
No. Both are thermoplastic single-ply membranes with welded seams, but their polymer formulations, chemical resistance, accessories and project-specific performance characteristics differ.
Can PVC roofs be repaired?
Many cuts, punctures and detail failures can be repaired with compatible PVC membrane and heat-welded patches when the surrounding roof remains serviceable.
Does PVC roofing come in white?
White and other light-colored PVC membranes are common, though available colors and reflectivity vary by product line and manufacturer.
What should be inspected on a PVC roof?
Inspections should focus on seams, flashings, drains, terminations, rooftop traffic areas, punctures, exhaust discharge zones and any changes made by other trades.
When should PVC be replaced instead of repaired?
Replacement becomes more likely when problems are widespread, moisture is trapped through large roof areas, the membrane has lost repairability, attachment is compromised or repeated repairs no longer address the underlying assembly.
AMERISTAR ROOFING • ATLANTA, GA
BUILD THE ROOF AROUND THE BUILDING.
Ameristar Roofing can inspect the existing commercial roof, evaluate the assembly and help determine whether pvc roofing belongs in the repair, recover or replacement plan.
(770) 338-6361