EPDM Roofing

For roughly five decades, EPDM rubber has been a popular choice for roofing installation. EPDM (short for ethylene propylene diene monomer) is a single-ply membrane that works well as a flat or low-slope roofing system for commercial and industrial properties.

EPDM is a flexible, synthetic rubber substance that is relatively inexpensive to purchase yet also easy to install and clean.  EPDM roofs are dependable, durable and versatile, and they have high life expectancy against all extreme weather conditions. It is highly fire-resistant and heat-resistant, and it protects well against harmful ozone and ultraviolet rays.

EPDM is versatile in that it can be placed over existing roof systems additional protection. When dealing with roof installation, EPDM is odorless, so the unpleasant fumes and aroma that accompany some roofing systems won’t be present.

EPDM roofing comes in all sizes, but it can also be installed in one piece, which makes installation quick and easy. EPDM, in addition, requires minimal maintenance. GA Roofing & Repair offers quality EPDM roofing installation service at an affordable price.

GA Roofing & Repair is a fully licensed & certified installer of EPDM Roofing products and is backed by all major manufacturers, let us help you with your next EPDM roof or repairs to your existing EPDM roof.

Thermosets

Single-ply roofing membranes can be generally categorized into two groups – thermosets and thermoplastics. Thermosets, or those materials that you can’t hot-air weld because it will change their physical characteristics, use a tape or a contact cement to make up the lap. According to SPRI, Thermoset membranes are compounded from rubber polymers. The most commonly used polymer is EPDM [ethylene propylene diene monomer].  EPDM membranes are known for their long-term weathering ability, and perform well even when subjected to fluctuations in temperature, ultraviolet rays, and ozone. The membranes are available in both unreinforced and reinforced, the latter of which increases resistance to tearing. EPDM is available in thicknesses ranging from 30 mils to 90 mils, and is offered in wider sheets that may be desirable.  EPDM may be a good choice because you can get it in sheets up to 50 [feet] by 100 [feet]; for very large roof areas, it’s an ideal product to minimize the seams. While it’s true that wider sheets can reduce the number of seams on a roof, there has been some debate about whether long-term wind resistance could be compromised in mechanically fastened applications where wider sheets are used.

Although most people think of thermoplastic membranes when a cool roof is mentioned, EPDM membranes can be energy-savers, too. By applying white, acrylic coatings, the transformation of an EPDM roof is like night and day.  According to the Alexandria, VA-based EPDM Roofing Association (ERA), “In addition to the oils and polymers used to make an EPDM membrane, another ingredient is added to the mix to enhance UV resistance. In the case of a black membrane, carbon black is added, which converts UV rays into heat. In the case of a white membrane, in lieu of carbon black, titanium dioxide is typically used to reflect UV rays and prevent it from attacking the polymer.”

Hypalon is another thermoset, although it is quite different from EPDM. “Hypalon is a unique material because it is manufactured as a thermoplastic; but, because it cures over time, it becomes a thermoset. Hypalon materials are heat sealed at the seams,” explains SPRI. It’s important to note that, unlike thermoplastics, Hypalon becomes unweldable with age.

 

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