How long does the typical flat roof last before needing re-roofing?
Our experience, having talked and dealt with thousands of flat roof home and building owners over the last 30+ years, has shown to us that traditional tar-based flat roofs typically last 3-7 years. With considerable and careful maintenance, a tar and gravel roof may last as long as 10+ years. Simply put, there’s a reason their limited warranty is usually only around 5 years in length.
