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Waterproofing membrane for flat roofs

Mar 22

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Friday, March 22, 2013  RssIcon

With the UK weather being so variable and often quite extreme, every property and home owner will want to have the assurance that their roof is waterproof. Traditional methods of waterproofing flat and low pitch roofs include the use of felt, bitumen or asphalt. But over the past couple of decades there has been an increase in the use of EPDM rubber membrane. The advantages of using this type of material is that it is UV resistant, resilient to extremes in weather conditions, flexible and is environmentally friendly.

RDL have a number of years experience supplying EPDM membranes for waterproofing buildings and the containment of water. EPDM rubber is a class of synthetic rubbers made primarily from EPDM polymer, short for Ethylene Propylene Diene Monomer. Although there are many ways to formulate EPDM rubber from EPDM polymer, they all share a chemical structure that gives them characteristics which make them ideal for a roofing membrane.  

Advantages of EPDM waterproofing membranes:


  • EPDM is highly resistant to UV rays therefore no additional protection is required to guarantee its waterproofing capabilities.

  • EPDM waterproofing membranes are flexible and have a life expectancy in excess of 40 years.

  • The cross-linked molecular structure of EPDM membranes makes it elastic and resistant to thermal deformation.

  • Resistant to extreme temperatures and retains elasticity with no risk of shrinkages at temperatures between -400C  and +1200C.

  • EPDM waterproofing membranes are resistant to heat, cold, sunlight, environmental chemicals and aggressive industrial emissions thereby making it ideal for roofing.

  • Does emit any toxic emissions in the event of fire and the EPDM membrane is suitable for thermal recycling with no negative effect on the environment.

  • Maintenance free waterproofing.

  • Unaffected by permanently moist environments and withstands permanently ponded water.

  • Remains flexible throughout the coldest winters and it won’t crack or dry out in the hottest summers.


For more details about our superior quality EPDM waterproofing membranes, contact Russetts Developments today. Provided the membrane is installed by a qualified, professional roofer, EPDM will assure you of more than 40 years water resistant.

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