Thermoplastics
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February 3, 2023 at 1:21 p.m.
alextolle
Giuseppe from Ontario asked:
I have a PVC coated flange, can this be heat welded to a TPO membrane, since both are thermoplastics?
February 3, 2023 at 1:22 p.m.
alextolle
John Kenney from Cotney Consulting Group says:
Unfortunately, PVC and TPO are not compatible with each other and do not weld correctly. Even if it appears to be welded, it is a false weld and fails.
February 7, 2023 at 1:37 p.m.
alextolle
Marty from Go Roof Tune Up says:
Thermoplastic Polyolefins and Polyvinyl Chloride should not be welded to each other. Consult the manufacturer of the existing roof system for future direction.
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