What is ballasted EPDM?
WHAT IS BALLASTED EPDM? A ballasted EPDM roof system has its components held in place by river-washed stones or pavers. Bal- lasted roofs are loose-laid, meaning roofing materials, including the insulation and roof membrane, are not fastened to one another or to the roof deck.
What is a ballasted membrane roof?
A ballasted roof means that the roof membrane is not anchored or adhered in any way to the decking material. It is, however, ballasted, generally with gravel.
How long does a ballasted EPDM roof last?
EPDM roof membranes remain stable over time and can have a life expectancy of over 50 years.
What is a ballasted flat roof?
Ballasted roofs are inverted or warm flat roof systems where the waterproofing membrane is secured against wind uplift and protected from other exposure and mechanical damage by a layer of gravel or paving – known as ballast.
What is the difference between reinforced and non reinforced EPDM?
EPDM is available in both black and white and is sold in a variety of widths and thicknesses. Non-reinforced EPDM membranes do not have a reinforcement scrim and are designed for use in adhered assemblies.
What is reinforced EPDM?
RubberGard™ MAX (reinforced) EPDM membrane is an internally reinforced cured single-ply roofing membrane that is designed to combat roof tears and punctures and provides superior resistance to wind forces.
What is the purpose of ballast on a roof?
The ballast is used to keep the roofing system cool and of out of the sun’s harmful rays, thus keeping energy costs down. The gravel top coat is also extremely resilient to heavy foot traffic and high-wind scenarios.
How long does a ballast roof last?
20-25 years
A typical ballasted commercial flat roof should last on average 20-25 years before it requires to be replaced.
What is better EPDM or PVC?
Comprised of synthetic rubber, an ethylene propylene diene monomer (EPDM) roofing membrane offers superior weather resistance while remaining a cost-effective option. PVC, on the other hand, delivers exceptional seam strength; in fact, heat-welded PVC seams are stronger than the PVC roofing membrane itself.
Can you put gravel on EPDM?
Yes, it is possible to cover the membrane with gravel, pavers or bankirai wood but the membrane must always be fully adhered to the substrate.