Damp Proofing with EPDM

EPDM (Ethylene Propylene Diene Monomer) is a synthetic rubber material, highly durable, lightweight and flexible. A high-performance membrane, it is commonly used for roof waterproofing and now damp proofing with EPDM is growing increasingly popular.

EPDM has a wide range of benefits when used as a damp proofing solution and we’re here with an overview of its properties and uses.

Key properties of EPDM for damp proofing

Waterproof: EPDM is highly resistant to water and moisture penetration, making it an excellent barrier for damp-proofing in foundations, basements, and roofing systems.

Durability: EPDM is known for its long lifespan (up to 50 years or more) and resistance to environmental factors like UV radiation, ozone, and extreme temperatures, both hot and cold. This makes it ideal for areas exposed to fluctuating weather conditions.

Flexibility: The material is flexible and elastic, allowing it to move and stretch without cracking. This is particularly useful in damp proofing, where movement due to settling or temperature changes is common.

Chemical Resistance: EPDM is resistant to many chemicals and pollutants, which is beneficial when used in environments exposed to industrial or agricultural run-off.

Low Maintenance: EPDM requires minimal maintenance over its lifespan, reducing the need for frequent repairs or replacements, which is cost-effective in the long run.

Non-Toxic: It’s an environmentally friendly material, being recyclable and not releasing harmful substances into the environment, making it suitable for use in residential, commercial, and industrial applications.

Applications of EPDM

Roofing membranes

EPDM is widely used in flat roofing systems due to its waterproof nature.

Basement damp proofing with EPDM

It serves as an effective barrier against moisture in basements and foundations, preventing water from seeping into the structure.

Cladding and facades

EPDM can also be used in cladding systems to prevent moisture ingress through walls.

Underlay for flooring

It is sometimes used under flooring in areas prone to dampness, such as bathrooms or basements, to provide a moisture barrier.

Considerations for damp proofing with EPDM

Adhesive or mechanical fixing?

• EPDM can be installed using adhesives or mechanically fixed, depending on the application.

Overlap and sealing

• It is crucial to ensure that sheets are properly overlapped where appropriate and sealed to prevent water from penetrating through joints.

Compatibility

• While EPDM is generally versatile, it’s important to ensure compatibility with other construction materials and membranes in a building system. This needs to be verified in advance.

Overall, damp proofing with EPDM provides a reliable, long-lasting solution. Install a material that excels in providing a barrier against dampness and moisture in various construction scenarios. Contact the PermaRoof team for further advice, we’re happy to help.

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