The Benefits The Benefits

It makes good sense to choose DuoPly fleece reinforced EPDM for your flat roof

At A R Systems we have absolute confidence in the performance of DuoPly and the membrane comes with a 20 year warranty.  The company who installs the DuoPly system should provide a 20 year warranty for every flat roof installation. Insurance backed guarantees are also available, please speak to your local installer.

Better quality installation

  • Cold applied with no requirement for torches, bitumen or asphalt. This flame- and heat-free process makes it much safer for you and your property.
  • DuoPly is a fully adhered system. It doesn’t require ballast or chippings that can potentially block gutters and downpipes.
  • Adheres to almost all flat roofing substrates.
  • Faster installation, low noise and odour application means less disruption.
  • Less weight on your roof than other flat roofing systems, under 2 kg/m2.
  • 1.5m wide rolls means fewer seams – allowing for a quicker installation.
  • DuoPly can be applied year round, in almost all weather and temperatures, with no detrimental impact on future performance.

Better quality product

  • EPDM is made from engineered polymers rather than leftover by-products.
  • EPDM was first used as a roof covering in 1960 and those first installations are still proving to be effective today.
  • Accelerated laboratory tests suggest EPDM will last over 50 years.
  • The dark grey slate colour looks natural and doesn’t easily show dirt.
  • EPDM does not support moss growth so continues to look good year after year.
  • The lower energy required during manufacture and build makes EPDM an environmentally friendly product. The International Kyoto Ecology agreement recommends EPDM as the best value sustainable eco-sound roofing.

Outstanding performance

  • Greater resistance to standing water, UV damage and cyclical building movement.
  • Because EPDM is a single ply membrane, there is no concern with interply blisters.
  • High resistance to ozone, weathering and abrasion.
  • High resistance to puncturing and tearing.
  • Flexibility in low temperatures.
  • Superior resistance to extreme heat and fire.
  • Restoration friendly.
  • Easy to install new roof penetrations at a later date e.g. air conditioning units.
  • Fully recyclable.

EPDM Flat Roofing FAQs


“Delighted with how DuoPly looks on my roof and even more delighted by the quality of workmanship, courtesy and tidiness during installation.”