EPDM is the acceptable abbreviation for Ethylene-Propylene-Diene Terpolymer, a synthetic rubber compound that gives high-performance waterproofing when laid in a single piece of membrane over a flat roof surface.
The membranes offer unrivalled resistance to UV radiation, ozone, alkali rains and exceptionally high or low temperatures. Studies have demonstrated that genuine Firestone membrane has an expected lifespan of more than 50 years.
Yes, it is possible to ballast the membrane, but you must take care to cover the membrane with a suitable medium, such as rounded washed bank river gravel and/or pavers placed on protective rubber feet.
Yes. The surfaces will be ready to be mated together after the adhesive is applied and has flashed off. If the prepared surfaces are left open longer than necessary, debris may contaminate the surface area, or temperature fluctuations may impair application.
EPDM membrane can be adhered to different substrates, such as OSB3 sterling board or plywood timber. Smooth concrete and tissue-faced insulation boards are also suitable, but note that new concrete should be fully cured before membrane installation.
No, there is no difference between the top and bottom of the standard and premium-grade membrane. Fire-rated (FR grade) membrane does have an up-and downside. There is clear wording stating which side this membrane should be laid.