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EPDM Brands
Carlisle is Europe’s leading manufacturer of EPDM membranes, offering an extensive range of high performance roofing materials developed over several decades. Two of our leading brands are RESITRIX® and HERTALAN®.
RESITRIX® is a hybrid EPDM with bitumen backing. HERTALAN® is a pure membrane that can be made to measure for virtually any sized roof. Learn more about the features and benefits of RESITRIX® and HERTALAN® EPDM membrane products.
EPDM With a Lifespan of Over 70 Years
The building transition requires a new mindset in the use of resources – durable and sustainable construction products are essential. The South German Plastics Centre (SKZ) has now confirmed the exceptional durability of the RESITRIX® and HERTALAN® EPDM waterproofing membranes from CARLISLE® CM Europe in a recent study: the products have a projected service life of more than 70 years – while maintaining high tensile strength.
The Main Benefits of EPDM Membranes
EPDM membranes have a number of main benefits which are outlined below:
Extremely long-term safe
EPDM membranes resist ageing, UV exposure, ozone and extreme weather. Their durability flexibility allows them to perform reliably in changing temperatures.
Flexibility when Fitted
An EPDM membrane can stretch and move with the building structure. Some products remain flexible at temperatures as low as -40°C, helping prevent cracks and splits.
Installation without an open flame
You can install EPDM without an open flame. Membranes can be fully adhered, mechanically fixed, or installed using induction technology. Factory-made sheets are easy to install and reduce on-site labour.
Ideal for green roofing
These systems are suitable for green roofing projects. They provide root resistance without harmful additives and form a reliable waterproofing layer beneath planting systems.
Ecologically safe
An EPDM membrane contains no heavy metals or volatile plasticisers. It is recyclable and supports sustainable construction goals.
Circular Sustainability
Induction welding allows for a mechanical fix without puncturing the EPDM membrane which makes it easy to recycle the membrane.
How does an EPDM membrane work?
Waterproof Protection
An EPDM membrane forms a continuous roofing membrane across the roof deck. This creates a secure barrier that prevents water entering the building structure.
For any flat roof, this seamless waterproofing layer is essential to avoid leaks, mould and structural damage.
Installation
Before you install EPDM, the substrate must be clean, dry and smooth. Proper preparation ensures strong adhesion and long term performance.
Once prepared, the EPDM membrane can be:
Fully adhered with adhesive
Mechanically fastened
Installed using induction welding
Ballasted with gravel or paving
Large sheet sizes mean fewer joints, making EPDM membranes efficient and straightforward to fit. Using a clear materials list helps plan roofing supplies and avoid delays on site.
Weather and UV Resistance
EPDM rubber roofing performs well in both hot and cold climates. It resists UV radiation, frost and heavy rainfall, maintaining its flexibility over time.
Energy Efficiency
When combined with suitable insulation, EPDM roofing systems can contribute to improved energy efficiency. While standard black membranes absorb heat, overall system design helps regulate building temperatures.
Low Maintenance
Once installed, EPDM membranes require minimal upkeep. Regular inspections should check for damage caused by debris or foot traffic. Cleaning is simple and usually involves brushing or rinsing the surface.
This low maintenance requirement reduces long term costs.
Chemical Resistance
An EPDM membrane is resistant to many acids, alkalis and environmental pollutants. This makes it suitable for both commercial and industrial roofing applications.
Longevity and Compatibility
The long life expectancy of EPDM membranes makes them a reliable roofing system choice. When correctly installed and maintained, they can last well beyond 50 years.
They are compatible with a wide range of flashings, sealants and insulation products, allowing seamless integration into modern roofing systems.
Why Should You Choose an EPDM membrane?
EPDM membranes are a leading choice for flat roofing and waterproofing, offering durability, flexibility and sustainability. They provide long-term protection against the elements while remaining an energy-efficient and cost-effective solution.
Exceptional Durability
Highly Flexible
Environmentally Friendly
Helps regulate building temperatures, lowering heating and cooling costs.
Multiple Installation Methods
Low Maintenance
Suitable for Various Applications
Choosing EPDM membranes means investing in a reliable, sustainable and effective roofing system for new builds and refurbishments.
Frequently Asked Questions About EPDM
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 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 an EPDM membrane Cost?
The cost of an EPDM membrane 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.