How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
Can you coat a TPO roof to extend its life?
Thursday, February 25, 2021
Yes, there are multiple brands of coatings, primarily elastomeric or acrylic, that will extend the life of a TPO (ThermoPlastic Olefin) roof. Here's a few considerations to review before you proceed:
• The roof should be old enough to have lost its shiny finish, at least 5 to 7 years, so the coating can adhere properly.
• Roof surface must be clean.
• Some systems require a base/prep coat first.
• No rain or high winds in the forecast on day of application.
Also, see our blog posts What is a TPO roof? and What is the average life expectancy of a TPO (Thermoplastic PolyOlefin) roof? and What is the minimum slope of a flat roof? and What is the average life expectancy of an elastomeric roof coating? and What is a "cool roof”?
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Links to some of our other blog posts about FLAT ROOFS (LOW SLOPE):
• What causes bubble-like blisters in a built-up and gravel roof?
• Why are most house roofs slanted instead of flat?
• What is "ponding" on a flat roof?
• Why is there no attic access hatch in the house?
• What is the difference between roll roofing and modified bitumen?
• What is the purpose of the gravel on a flat tar roof?
• Can metal roofing be used on a low slope/pitch roof?
• What is the stuff you paint an old mobile home metal roof with to extend its life?
• Does a gravel roof need maintenance?
• What is the average lifespan of a built-up and gravel roof?
• What is the average lifespan of a modified bitumen roof?
• • What is the average life expectancy an EPDM roof?
• I'm buying a '50s modern house with a "gravel" roof. Is the roof going to be a problem?
• Is "ponding" (standing puddles of water) normal on flat roof?
• What is the average life expectancy of a built-up roof?
Visit our ROOF AND ATTIC page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.
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