Empire Contractors helps commercial building owners in Green Bay, WI with PVC roofing, including evaluation, installation, repair and ongoing care. The company has been in business for 28+ years as a second-generation roofing company, and its inspection-first approach starts with the existing roof, substrate, drainage, rooftop equipment, building use, and exposure conditions before a system recommendation is made. If you manage a restaurant, an industrial building or another flat or low-slope property in Green Bay, this guide explains what a PVC roof is and when it makes sense.
PVC, short for polyvinyl chloride, is a single-ply membrane with heat-welded seams. It is one of three common single-ply options alongside TPO and EPDM. To discuss your Green Bay building, call Empire Contractors at (231) 861-7221.
What Is a PVC Roofing System?
A PVC roof is part of a layered assembly that can include the structural deck, insulation, cover board or another substrate, and the membrane. The membrane sheets are commonly joined with heat-welded seams that use controlled heat and pressure to fuse compatible overlapping material. Because single-ply performance depends on both field membrane and detailing, weld quality, attachment, flashings, drains, edges, curbs, and penetrations all matter. Empire Contractors’ single-ply membrane page gives an overview of PVC, TPO and EPDM.
When PVC Is Worth Considering
PVC is often considered when a roof may be exposed to grease, oils, process exhaust, or other substances, but suitability depends on the specific membrane product and the actual exposure. The table below shows how common building types relate to that question.
| Building type | Roof exposure | How PVC fits |
|---|---|---|
| Restaurants and food service | Rooftop exhaust can deposit grease and oils on the membrane | PVC may be considered when the selected membrane’s published exposure guidance supports the expected grease or oil conditions |
| Industrial and manufacturing | Process exhaust or chemical exposure near the roof | Confirm the actual chemicals, concentration, temperature, and exposure pattern against the selected membrane’s published guidance |
| Buildings with heavy rooftop equipment | Frequent service traffic and many penetrations | Seams, flashings, traffic protection, and penetrations should be designed for the equipment and service pattern |
| Standard commercial roofs | Little grease or chemical exposure | PVC, TPO, and EPDM may all be options, so compare the roof assembly, building use, exposures, drainage, attachment, and project requirements |
No membrane is automatically best. Rooftop equipment, drainage, foot traffic, substrate, attachment needs, building use, exposures, project requirements, and budget all shape the decision, so the choice should follow a documented evaluation of the roof and building.
How PVC Compares With TPO and EPDM
- PVC. A thermoplastic single-ply membrane with heat-welded seams; suitability for grease, oils, chemicals, or process exhaust depends on the specific product and exposure.
- TPO. A thermoplastic single-ply membrane commonly installed with heat-welded seams. Empire Contractors’ TPO roofing page for Green Bay describes this system.
- EPDM. A synthetic-rubber single-ply membrane that uses compatible seam and flashing methods; fit depends on the building and project rather than price alone.
What a PVC Installation Involves
- Roof evaluation. The existing roof, insulation, deck and drainage are inspected so the plan fits what is actually there.
- Preparation. Existing roofing is removed, retained, or prepared according to the planned scope, and unsuitable insulation, deck, or substrate conditions are addressed.
- Membrane placement. PVC sheets are positioned and secured using an attachment method matched to the deck, roof design, wind requirements, and selected system.
- Seam welding. Overlapping compatible sheets are heat welded according to the selected system requirements.
- Detailing and review. Flashings, penetrations, edges, and drainage details are completed, and the finished work and project documentation are reviewed.
Questions to Ask Before Choosing PVC
- What rooftop equipment, exhaust, or process exposure could contact the roof, and what substances are involved?
- What condition are the existing insulation and deck in?
- Is the project a full replacement or a retrofit over an existing system?
- How well does the roof drain, especially during snowmelt?
- How will seams, flashings, penetrations, and edges be checked and documented during installation and closeout?
Written answers to these questions in the proposal make it easier to compare bids and avoid surprises once work begins.
Caring for a PVC Roof in a Green Bay Winter
Northeast Wisconsin can bring snow, ice, cold temperatures, rain, and repeated temperature changes that affect drainage, access, flashings, seams, and rooftop details. Inspection and maintenance timing should follow the roof system, building use, exposure, prior repairs, and any written maintenance requirements, with additional checks after significant weather or rooftop service work when warranted. If a restaurant or plant has rooftop exhaust, the area around that equipment should be included in condition reviews because deposits, heat, service traffic, and penetrations can affect the roof depending on the actual exposure. Empire Contractors’ commercial roof maintenance page describes the kind of upkeep used to monitor roof condition over time, and its roof repair page covers fixing leaks at their source.
PVC Roofing in Green Bay, WI
Empire Contractors can review a commercial roof, explain whether PVC fits the documented building and exposure conditions, and outline installation, repair, or maintenance options for a Green Bay property. Current contact information is available through the company.
Frequently Asked Questions
What does PVC roofing stand for?
PVC stands for polyvinyl chloride. It is a single-ply membrane used mainly on flat and low-slope commercial roofs.
Is PVC a good roof for a restaurant?
PVC is often considered for restaurants when the selected membrane’s published exposure guidance supports the grease, oils, heat, and exhaust conditions present at the building.
How are PVC roof seams joined?
PVC seams are commonly heat welded using controlled heat and pressure. Seam quality, probe testing or other quality-control steps, flashings, and transitions should follow the selected system requirements.
What should a PVC roofing proposal identify?
It should identify the roof assembly, attachment method, membrane and seam details, insulation or substrate work, drainage, flashings, penetrations, edges, exposure considerations, and any exclusions or allowances.