How Long Does A Built Up Roof Last

When you re considering a built up roof for your commercial building you may wonder how long it will last and whether it s a smart long term investment.

How long does a built up roof last.

Built up roofing consists of several layers of industrial fabric or paper that is coated with asphalt or coal tar to seal out moisture and then covered with a crushed stone or gravel material. Unfortunately this is not the case. It also lasts from around 10 to 20 years so it has quite a bit of durability. Most architectural shingle roofs will last anywhere from 15 to 25 years depending on their environment.

Is your initial investment in a built up roof going. However their installation can be expensive. Keeping the weather conditions in mind the roof must be built in the respective shapes be it sloping or flat. Thickness has little to do with the durability of this material and it all wears out at about the same rate.

3 build up 15 20 years the build up roof or the tar gravel roof includes piles of alternating layers of bitumen which is either coal tar asphalt or some sort of sealant with the other layers being made of gravel or other similar materials. Depending upon the materials used in construction built up roofs generally last between 20 and 30 years. Tpo compounds have changed in recent years so it is impossible to say how long current roofs will last but a general estimate puts a tpo roof between 10 and 20 years. Homeowners with wood shake roofs should expect them to last about 30 years while fiber cement shingles last about 25 years and asphalt shingle composition roofs last about 20 years the nahb.

Not surprisingly cheaper roofing materials won t. How long does a roof last depends a lot on the surroundings. 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. Thermoplastic polyolefin roofing tpo.

As a building manager or owner you have several options for roofing when it comes to your flat roof. Maximum wind uplift for most architectural shingle products is 110 mph. 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. Built up roofing systems are known to be durable and can stand the test of time.

With a special installation method and roof frame bracing the wind uplift rating can be increased to 130 mph. The minimum time that a roof lasts should be around 20 years.