PVC roofing membranes are superior roofing materials for many reasons:
Vinyl is inherently flame resistant
- Most vinyl membranes will not support a flame when the fire source is removed.
- High flame resistance can make it easier for PVC roofing systems to attain Class-A fire ratings than for other roofing systems.
- Combustion, especially incomplete combustion, is a source of many environmental toxins (backyard refuse burning and residential wood burning are two major sources).
- A roof membrane that doesn’t burn is less likely than a flammable roofing material to emit potentially harmful substances.
PVC membranes are flexible
- Most PVC membranes are very flexible and can be easily customized to accommodate rooftop variances.
- Some vinyl roofing systems are custom-made (prefabricated) to fit each building. Customization can reduce the potential for scrap and waste at the job site.
Vinyl membranes are lighter in weight than other roofing systems
- Vinyl roof membranes typically add very little weight to an existing structure.
- In a re-roof situation, a PVC roof can often go directly over the existing system. This avoids costly tear-offs, meaning no asphalts, felts or other old roof materials go into landfills.
PVC membranes are heat-weldable
- PVC membranes can be heat-welded, which produces the strongest and most reliable seams. Reducing the potential for leaks to occur also reduces the possibility for interior dampness and subsequent mold to develop.
- Some vinyl membranes use two-way venting, which allows the roofing system to “breathe” and can reduce the potential for trapped moisture.
Vinyl roofs can be highly reflective
- Some vinyl roofs are highly reflective, keeping buildings cooler, reducing energy demand, and helping mitigate urban heat island effects. Cooler cities reduce dependence on limited natural resources.
PVC is highly-resistant to most chemicals
- Most PVC membranes will provide long-term service in the harsh environments experienced on rooftops.
- Many vinyl roofs are still functioning after more than 30 years of service. A longer-lasting roof means less frequent roof replacements over the life of a building. A building lasting 100 years may go through 8-10 “Type-X” roofs, but only 3-4 vinyl roofs.
Vinyl is easily recycled
- During the production of some PVC roofing systems, there is virtually no waste because fabrication scrap is reground and re-used in the roofing system or other building components.
- Unlike many other roofing materials, vinyl membranes can be recycled at the end of their lives on the rooftop.
When selecting a roofing system, remember that PVC membranes are your best choice.