How Long Do Residential Flat Roofs Last

When s the last time your flat roof had a recoat.

How long do residential flat roofs last.

But how can this be you say. Coating a flat roof can also save money on costly repairs down the line. With a special installation method and roof frame bracing the wind uplift rating can be increased to 130 mph. All three of these flat roof membranes have their benefits and drawbacks but are all commonly used today on commercial flat roofs.

A lifespan of an un coated flat roof is around 10 years but coating it every five years or so can extend this enormously. As a building manager or owner you have several options for roofing when it comes to your flat roof. They tend to have a lifespan of around 20 to 25 years depending the location and the structure of the rest of the property barring any major natural disasters of course. Most architectural shingle roofs will last anywhere from 15 to 25 years depending on their environment.

All three types of flat roofing cost 250 to 350 per square 100 square feet but prices vary according to region and size of the roof. Built up roof bur the traditional hot tar and gravel roof is built from three or more plies of waterproof material alternated with hot tar and ballasted by a layer of smooth river stone. Typically a 30 year roof will last on average 12 15 years in more extreme climates such as we have here in texas. This maintenance typically comes in the form of coating the flat roof.

Since it is a multi ply roofing there is less risk of tears and holes than if you had a single membrane roof such as pvc. Even though manufacturers offer warranties that are up to 40 years for commercial roofing none for residential its important to be aware that these warranties do not cover failing seams or ponding water. Flat roofs usually come with a 10 to 20 year warranty but can last 25 years if you build the roofs right and maintain them using commonsense rules. 25 year roofs lasting 9 12 years on average.

If it s been over 10 years call lyons roofing your local phoenix roofing company. While many types of roofs last longer than 15 years some can hold up well for 50 years or longer barring a serious storm or a large fallen tree. In general a flat roof membrane will last anywhere from 10 50 years depending on these factors. Both of these are the primary causes of failure for a rubber membrane.

Even more so than other roofs flat roofs require maintenance in order to last. The weatherproofing aspects of the gravel embedded in the roof can prevent degradation like cracking or blistering that lead to leaks or other failures over time. To help your flat roof last for 25 years it s important to recoat your foam roof every 5 to 10 years since the sun s ultraviolet rays eventually wear down the protective covering. Epdm lasts only about 10 15 years.