Membrane Epdm Or Pvc Roof

Epdm rubber commonly known in the industry as a rubber roof.

Membrane epdm or pvc roof.

In the case of pvc it surpasses astm s standards and its minimum breaking strength. By welding the seams tpo becomes one monolithic membrane across the entire. An effective roofing system depends on strong seams. Epdm commonly known as a rubber roof stands for ethylene propylene diene monomer.

Dark colored epdm helps building owners save on heating costs and light colored epdm helps building owners save on cooling costs. It is a synthetic rubber derived from oil and natural gas ethylene propylene. Polyvinyl chloride pvc roofs are commonly used thermoplastic membranes that come in light gray and white colors. Everguard tpo s welded seams are stronger than taped epdm seams.

Both flat roof systems have been around for a similar amount of time and have unique attributes that are beneficial or detrimental based on how your building is used. Epdm membranes are covered under astm d4637. When the ethylene propylene is combined with diene an unsaturated hydrocarbon alkene containing two carbon to carbon double bonds the flexible epdm membrane is born. According to the american society of testing and materials astm a roofing membrane must have a breaking strength of around 200 ppi.

Sheets are available in a range of thickness from 45 mils to 90 mils but 60 mils is common. Epdm stands for ethylene propylene diene monomer. Pvc is a plastic roof material that is formed by a gaseous reaction between oxygen hydrochloric acid and ethylene. A pvc membrane is made up of two plies of pvc material with a polyester reinforcement scrim in between.

A pvc versus epdm comparison chart is below. Epdm vs pvc a debate that comes up is whether to install a pvc roofor an epdm roof. Standard specification for epdm sheet used in single ply roof membrane. Epdm ethylene propylene diene terpolymer offers a proven history of performance over 58 years based on superior flexibility elongation uv resistance and hail damage resistance.

Pvc and epdm typically go 1 2 in terms of popularity for flat roofing depending on what area you live in. Colors can vary from black to gray but it almost always has a smooth feel because it doesn t contain surface granules. It is one of the strongest flat roof materials amongst tpo epdm and mod bit. This membrane is a mix of ethylene propylene and a bit of diene monomer epdm.

The following are four types of roofing membranes and their pros and cons. One of the biggest advantages of epdm over a pvc roof membrane is a much lower price. Unlike tpo and pvc single layer membranes epdm materials have no shelf life meaning it is easier to keep in the garage in case you. Epdm is more likely to shrink which can cause a variety of problems on your roof.

It is an extremely durable synthetic rubber roofing membrane. The membranes are usually reinforced but non reinforced sheets are also available. Distinctive to pvc membrane making it more durable than epdm are hot air welded seams. Tpo has better dimensional stability than epdm.