PVC (polyvinyl chloride) is a single ply roof system that initially offers an economical system to the building owner. This system offers only a single layer of protection and has an expected service life of 15 years. Some of the long-term disadvantages of PVC roof systems are: PVC is typically not compatible with asphalt based products; and PVC roofs are also prone to shrinkage which allows the laps and seams to become a source of water infiltration.
Thermo Manufacturing can provide a long-term, sustainable solution for difficult roofing conditions. The links below cover our standard recommended systems for PVC roofs.
If actual project conditions are such as to be outside the scope of the normal waterproofing practices that are referenced in the documents below, steps should be taken to ensure the restoration remains in compliance with nationally recognized waterproofing practices such as those found in the National Roofing Contractors Association Manual. If the system is applied according to our published specification and guideline, and after successfully passing a final inspection, and then accepted by Thermo Manufacturing Systems, LLC, the system would qualify for the specified warranty.