EPMD (Ethyline Propolyne Diene Terpolymer) Roofing Systems
One type of membrane that is dimensionally stable and can resist or withstand any kind of nature-caused stress is Ethyline Propolyne Diene Terpolymer (EPDM). This roof membrane is single-ply and is more known as a rubber roof system. An EPDM roof system uses as its molecular “backbone,” carbon black, giving it the ability to expand up to 3% of its original size but with 100% of its original structural memory still intact. This type of roof system has very good weathering resistance quality and is an excellent roof over (second generation) application.
The term, warranty structure, membrane thickness, insulation value, method of application, and other attributes of a roofing system need to be taken into account in order for us to provide you with the best possible roofing solution.
There are three installation methods involving EPDM roof systems. They are:
Ballasted – due to the facility and speed of its installation this type of installation is the most cost-effective method for EPDM roof systems. The Ballasted approach uses large sheets and 10 to 12 pounds of rock ballast per square foot to maintain the position of the membrane. It does require though the approval of a structural engineer.
Fully adhered – The fully adhered system directly bonds the membrane into the affixed insulation board or other roofing membrane substrate.
Mechanically attached – a cost-effective and lightweight solution that entails the use of mechanical anchors to affix the roof membrane to the structural deck.