Ranking PVC Roofing Membranes Using Thermal Analysis
Publication: Journal of Materials in Civil Engineering
Volume 5, Issue 1
Abstract
The effects of accelerated heat aging on three polyvinyl chloride (PVC) roofing membranes was determined using thermogravimetry (TG), dynamic mechanical thermal analysis (DMA), and tensile testing. The heat aging was done at 100°C and 130°C. In general, it was found that the degradation of the reinforced PVC roofing membranes was proportional to the aging temperature and exposure time. Furthermore, it was found that these thermoanalytical techniques can be used to not only record the changes incurred by the samples due to heat aging, but also to provide a ranking of the heat stability of the various materials. The order of stability, using these techniques, was determined to be , which corresponded with the observed order of stability from actual records obtained on roofs. The results obtained demonstrate that TG and DMA, in conjunction with tensile testing, provide a viable, routine method of evaluating the quality of single‐ply PVC‐based roofing membranes.
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Information
Published In
Journal of Materials in Civil Engineering
Volume 5 • Issue 1 • February 1993
Pages: 83 - 95
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Jan 28, 1992
Published online: Feb 1, 1993
Published in print: Feb 1993
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