EPDM

As a primary waterproofing layer for a flat or a low-slope roof, EPDM offers many features. Here's a breakdown of how it works:

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: Our roofing solutions 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 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. These 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 like 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, 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.

EPDM is a leading choice for flat roofing and waterproofing, offering durability, flexibility and sustainability. It provides long-term protection against the elements while remaining an energy-efficient and cost-effective solution.

• Exceptional Durability: Resistant to harsh weather, UV exposure and temperature fluctuations.

• Highly Flexible: Adapts to roofing features like pipes and drains, preventing leaks and structural issues.

• Environmentally Friendly: Recyclable and free from hazardous additives.

• Energy Efficient: Helps regulate building temperatures, lowering heating and cooling costs.

• Multiple Installation Methods: Can be fully adhered, mechanically fastened or ballasted.

• Low Maintenance: Requires minimal upkeep, reducing long-term costs.

• Suitable for Various Applications: Ideal for both commercial and residential roofing projects.

Choosing EPDM means investing in a reliable, sustainable and effective roofing system for new builds and refurbishments.

Can EPDM be used for green roofs?

Yes, EPDM membranes are highly suitable for green roof applications. Their exceptional waterproofing capabilities ensure that the underlying structure remains protected from moisture infiltration, which is crucial for green roofs that retain water in their soil layers.

The membrane’s flexibility also allows it to accommodate the natural movements and weight of green roof systems without compromising its integrity. Its durability ensures a long-lasting foundation for the vegetation above.

Is EPDM environmentally friendly?

EPDM is considered an environmentally friendly roofing material. It is fully recyclable, which helps reduce waste and the environmental impact associated with roofing materials. EPDM membranes do not contain hazardous substances like heavy metals or volatile plasticizers, ensuring minimal environmental impact during their lifecycle.

How much does EPDM Cost?

The cost of EPDM can vary depending on a variety of factors. This includes the thickness and type of the membrane, as well as the size and style of the roof.

Can EPDM be installed in cold climates?

Yes, EPDM membranes perform exceptionally well in cold climates. They remain flexible at temperatures as low as -45°C (-49°F), preventing cracking or brittleness during freeze-thaw cycles.

For further information on the installation of EPDM download the product brochures, for both RESITRIX® and HERTALAN®,  in the Service Portal.

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.