How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manfuactured and modular homes
What is the average life expectancy of a rubber roof?
Sunday, April 5, 2020
How long does a rubber roof last?
A rubber roof can be expected to last 20 to 30 years. Possibly longer with diligent maintenance. The technical name for a rubber roof is EPDM, which stands for Ethylene Propylene Diene Monomer. It is a synthetic rubber membrane and, like any membrane roof, punctures from walking or dragging anything over the surface. But, if leaks occur, they are often at the glued seams. UV-light deterioration has been a problem, but newer formulations of the material are more UV-resistant.
It is also classified as a cool roof when installed with white side up and EPDM does not leach any contaminants into the rainwater that flows over it and off the roof, unlike asphalt/bituminous roofing. So it can be specified for “green” homes with rainwater catchment systems. To learn more, go tour blog post What is an EPDM roof?
Go to our blog post What is the average lifespan of the parts of a house? for rating of other house components. To understand the basis, potential use, and limitations of lifespan ratings, see our blog post ”How accurate are the average life expectancy ratings of home components? Are they actually useful?”
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