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Damp Proof Membrane (DPM)

Damp proof membrane is a membrane material that is applied within a roof, wall, or under flooring to prevent any moisture from getting in. Our damp proof membrane is made of a polythene material, which is the most commonly used material for this type of job. It is usually required when using certain insulation materials such as, mineral wool or cellulose, to protect the insulation and prevent damp.

It can also be used for such as, poorly ventilated kitchens and bathrooms, as well as for external walls, or creating a waterproof layer under a floor, or slabs.

Damp proof membrane is a membrane material that is applied within a roof, wall, or under flooring to prevent any moisture from getting in. Our damp proof membrane is made of a polythene material, which is the most commonly used material for this type of job. It is usually required when using certain insulation materials such as, mineral wool or cellulose, to protect the insulation and prevent damp.

It can also be used for such as, poorly ventilated kitchens and bathrooms, as well as for external walls, or creating a waterproof layer under a floor, or slabs.

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Customer Reviews

I’ve been using Felt Products Ltd for my roofing supplies for years, and their standard roofing felt never disappoints.

It’s tough, easy to handle, and lays flat with no creases or weak spots.

Chris Simmonds
12th June 2025
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