Roof Life Cycle

Traditional asphalt roofing materials have an estimated life expectancy of roughly 12 20 years.

Roof life cycle.

The expected life of a roof and its surrounding environment has more impact on a roof s overall life cycle cost than most other factors. Life cycle cost analyses comparing several roof maintenance scenarios the technique for conducting a life cycle cost analysis has become formalized through the use of an astm method e 917 standard practice for measuring life cycle costs of buildings and building systems. The normal life cycle of the conventional roof is lo wer than for green roofs which indicates that replacement or. Commercial roof life cycles vary based on dozens of variables including roof type installation maintenance more.

This article describes common defects found on modified bitumen roofs such as buckling cracking granule loss improper installation details leaks. Some metal roofs can sustain wind gusts up to 140 miles per hour will not corrode or crack and may be impact resistant depending on which metal you choose. Modified bitumen roof life defects wear common defects life of modified bitumen roof effective roof coatings. Read faqs regarding roof longevity here.

Although it is not determined that if life cycle cost lcc of a green roof is lower than a conventional roof green roofs are the environmentally p referable choice when constructing a building for the longer life span and small reduction in energy demand kosareo and ries 2006. All roofs reach the end of their life eventually. However when given the proper attention during the maintenance stage of the lifecycle your roof s lifespan can be extended up to 30 plus years. In addition metal roofs don t need the periodic costly maintenance that other.

Maybe even a total roof replacement. The average life of roofing. If a roof doesn t last the desired 20 year span the owner is more likely to incur higher costs for maintenance through the life of the roof as well as the possibility of major renovation or early. If a roof doesn t last the desired 20 years the owner is likely to incur higher than average maintenance costs and towards the end of the roof s life also major renovation costs.

Renovation is required more frequently for a con ventional roof than for a green. The average roof life today is about 15 years.