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EPDM Membrane Brands

Carlisle Construction Materials (CCM) is Europe’s leading EPDM rubber roofing membrane manufacturer. EPDM has developed a great deal in the last few decades and two of the leading brands that offer unique advantages are RESITRIX and HERTALAN.

RESITRIX is a hybrid EPDM with bitumen backing and HERTALAN is pure EPDM and can be made to measure for virtually any sized roof. Learn more about the features and benefits of RESITRIX and HERTALAN EPDM products.

The Main Benefits of EPDM Membranes

EPDM membranes have a number of main benefits which are outlined below:

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Extremely long-term safe

Very high resistance to ageing and weathering - certified service life of over 50 years (according to SKZ)

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Flexibility when Fitted

Thanks to it's superb flexibility, EPDM can be fitted to almost any flat roof and can easily be installed around outstanding features such as pipes and drains

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Installation without an open flame

Homogeneous EPDM tarpaulins prefabricated to fit the structure with factory-sealed seams. Other seams can be welded or glued using a hot air gun

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Ideal for green roofing

Suitable for extensive and intensive greening systems. Root resistant without harmful root protection agents

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Ecologically safe

EPDM does not contain any hazardous additives such as heavy metals, halogens or volatile plasticisers

Circular Sustainability

Induction welding allows for a mechanical fix without puncturing the membrane allowing the membrane to be easily recycled

How do EPDM membranes work?

As a primary waterproofing layer for a flat or a low-slope roof, EPDM membranes offer many features. Here's a breakdown of how they work:

Waterproof Barrier: EPDM membranes create a continuous, seamless barrier over the roof substrate, preventing water from infiltrating into the building structure below. This barrier is crucial for protecting the interior of the building from water damage, including leaks, mould and rot.

Installation: EPDM membranes are often easy to install. They are typically installed in large sheets either by fully adhering them to the substrate using adhesive, mechanically fastening them with screws and plates or with the innovative CARLISLE Induction System a puncture-proof heat induction technology, or ballasting them with gravel or pavers.

The seams between sheets are then sealed by either hot air welding or vulcanisation. Vulcanisation is a process in which EPDM rubber sheets are connected to create a made to measure membrane with considerable sizes.

Flexibility and Expansion: EPDM membranes are highly flexible and can stretch to accommodate building movement and temperature changes without compromising their integrity. Membranes such as Resitrix have an elasticity of over 500% and are flexible at low temperatures down to -40°C.

This flexibility is especially important in regions with extreme temperature variations, as it helps prevent the membrane from cracking or splitting over time.

UV and Weather Resistance: EPDM membranes are resistant to UV radiation, ozone, and other environmental factors that can degrade traditional roofing materials over time. This resistance helps prolong the lifespan of the membrane and ensures long-term protection for the roof structure.

Environmentally Friendly: EPDM is a recyclable material, and some manufacturers offer recycled content in their membranes. Additionally, EPDM roofs can help improve energy efficiency by reflecting sunlight and reducing cooling costs.

Low Maintenance: Once installed, EPDM membranes require minimal maintenance compared to other roofing materials. Periodic inspections and minor repairs may be necessary to address any damage or wear, but overall upkeep is relatively straightforward.

Ecologically safe & Resistance to Chemicals: EPDM membranes exhibit excellent resistance to many chemicals, including acids, alkalis, and industrial pollutants, making them suitable for use in industrial and commercial applications. It is permanently resistant to bird faeces, numerous chemical emissions and other aggressive environmental influences.

Membranes such as Resitrix also consist of ecologically sound materials and components, such as glass, EPDM, TPE and bitumen. The roofing membranes contain absolutely no hazardous additives such as heavy metals, halogens or volatile softeners, thus classified as 100 % non-toxic and no chemicals or dubious materials are released during the entire life cycle.

Longevity: They are known for their durability and longevity, with an expected lifespan of 30 years or more, some membranes have a certified life of 50 years when properly installed and maintained. This makes them a cost-effective roofing solution over the long term.

Compatibility: They are compatible with a wide range of roofing accessories and components, such as flashings, sealants, and insulation, allowing for seamless integration into various roofing systems.

Overall, EPDM waterproofing membranes work by forming a resilient, waterproof barrier over flat or low-slope roofs, protecting the building structure from water intrusion and environmental damage for many years.

Support For All Stages of Your Project

Whether it's a new build or renovation, our commitment to good service means that we are always there to provide you with technical advice and assistance. From the initial consultation to on-site visits and inspections and even after the completion of your project, we are here to help with your EPDM roofing system. Contact us here for support today.