The long term durability of PVC rainwater systems - Performance after 25 years of service
D. Cousins, S. R Tan† and P. Turner
Papers # 2012 Barcelona
This paper presents results of test carried out on rainwater products that have been
exposed to natural weathering for 25 years in Northern Europe. Samples of down
pipe and gutter were removed from both north and south facing aspects of a property
during renovation and subjected to a range of mechanical and physical tests that
rainwater products must pass when new. These include tensile strength and
elongation at failure, Vicat softening temperature, reversion, and impact strength.
The results indicate that, even after 25 years of service, the PVC rainwater products
still pass most of the tests required both at the time of manufacture and by current
Key words : Durability, rainwater, gutter, downpipe
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