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Brick Superstore£33.30Visit shop Siteworx Damp Proof Membrane Mini Pack 1000G/250Mu - 4M X 5M
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Bradfords£38.03Visit shop Radbar Damp Proof Membrane Handy Pack (250Mu) 4Mtr X 5Mtr Black
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The Siteworx Damp Proof Membrane (250mu) is an essential solution for contractors and DIY renovators seeking to protect subfloors and structures from ground moisture. It provides a robust, high-performance barrier that ensures flooring materials remain dry and free from damp-related deterioration, though its large 4m x 5m sheet size requires sufficient workspace and careful handling during installation.
| Model Part Number | SDP452 |
|---|---|
| Brand | Siteworx |
Yes, it is designed to manage moisture, but ensure you follow the specific heat resistance guidelines of your underfloor heating manufacturer.
This membrane is specifically optimized for flooring applications. For wall damp-proofing, use a cavity drain membrane system designed for vertical surfaces.
Yes, to maintain a continuous moisture barrier, all joints and overlaps must be sealed using a high-quality damp-proof membrane tape.
Yes, 250 microns (250mu) provides the necessary thickness for high puncture resistance and industrial-grade moisture protection.
While it can be used on wood, it is primarily intended for concrete and screed substrates. Ensure the wood floor is structurally sound and dry first.
Use temporary weights or low-tack masking tape to hold edges in place until the finish flooring or perimeter beading is applied.
Ensure the subfloor is level and sweep away all grit or sharp concrete protrusions before rolling out the membrane.
To achieve maximum performance, ensure the subfloor is clean, dry, and free of debris that could cause tears before laying the membrane. Roll out the sheet and overlap joints by at least 150mm, ensuring all seams are sealed tightly with high-quality damp-proof tape to create an airtight seal. The membrane should be laid flat, avoiding wrinkles or bunching that could interfere with flooring levels. For long-term maintenance, ensure the membrane remains puncture-free during the installation of your finish flooring. Store the roll in a cool, dry place away from direct sunlight and sharp objects to maintain its integrity before use.
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