Single ply roof guarantees typically cover 15-20 years, focusing on materials...

https://www.bookmark-help.win/single-ply-roof-guarantees-typically-cover-15-20-years-but-these-roofs-can

Single ply roof guarantees typically cover 15-20 years, focusing on materials and workmanship under ideal conditions. But in reality, these roofs can last 25-40 years if well maintained. Factors like weather, foot traffic, and drainage impact longevity