One of the most important factors in an EPDM roofs lifespan is the quality of workmanship that is put into the installation.
Since the 1960’s, EPDM has been in use on roofs in the U.S. and is one of the most common types of roofing materials for flat and low-slope roofs. There are many reasons for it’s popularity, foremost being that it is relatively inexpensive. It is also fairly easy to install and keep clean.
What is EPDM Roofing?
EPDM is an abbreviation for ethylene propylene diene monomer. This highly engineered compound is used to manufacture most types of rubber roofing. Rubber roofing is typically used on flat or low-slope roofs for both commercial and residential buildings. EPDM roofs are single-ply membranes which means that there is only one ply of roofing materials, not multiple layers.
EPDM’s principal components consist of the compounds propylene and ethylene. When a small amount of diene is added to the mix, a flexible rubber matrix forms. It is available either reinforced or unreinforced and is also available in either a cured or uncured state.
How Long Do EPDM Roofs Last?
As is the case with any type of roofing material, EPDM roofs have varying lifespans depending on a number of different factors. Some of these include environmental conditions such as what type of building it is, how much water accumulates on the roof after a rain, how long it takes the rain to evaporate, and how much foot traffic is on the roof. EPDM rubber roofs in milder climates will last longer than roofs in harsher climates. In Missouri this can vary as our weather tends to fluctuate from year to year.
In addition to these reasons, one of the most important factors in a roofs lifespan is the quality of workmanship put into the installation. When properly installed, an EPDM rubber roof should last between 12 and 25 years.
EPDM Installation Methods
There are three different methods of installation that can be utilized, depending on your circumstance:
- The Ballasted System – The most often used application of EPDM, the ballasted system is quick and easy to apply. Large panels of EPDM rubber roofing are laid down loosely and then covered by a layer of smooth stone or concrete pavers. This is an acceptable installation for any commercial building whose roof supports can withstand the added weight.
- Mechanically Attached System – Ideal for any commercial building in St. Louis that has a low sloped roof, large panels of EPDM are attached using batten strips on the deck surface.
- Fully Adhered System – This is the perfect solution for a commercial building where the roof is pitched. The EPDM panels are bonded to the decking material using adhesives and stress plates.
St. Louis EPDM Roofing Systems
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