How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
What is the average life expectancy of a PVC roof?
Tuesday, December 8, 2020
The life expectancy of a PVC (Poly-Vinyl-Chloride) roof is 20 to 30 years, with an average of 25 years. The roof life can be shortened or extended outside of this range due variables like severity of climate, quality of installation, number of roof penetrations, maintenance (specifically clearing of organic debris accumulation on the roof), providing adequate roof slope to prevent ponding, and level of foot traffic on roof.
PVC is popular in our area for roof-overs (new roof applied directly over existing roof) of mobile homes and some installers offer a “lifetime” warranty on the roof. But the warranty is for defects in manufacturing or installation of the material, not for failure due to normal deterioration over time.
The roof is often white for best energy efficiency, but the one shown above has an imprint to mimic a shingle roof.
Here’s a bar graph that compares PVC life expectancy to other types of roof coverings.
Go to our blog post What is the average lifespan of the parts of a house? for rating of other house components.
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To learn more about roofs and attics, see these other blog posts:
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