Heyen UK Ltd

Heyen Structural Waterproofing Solutions

Water is collected in the cavity between the external wall and the cavity drain membrane and diverted to a suitable drainage point. Cavity drain membranes are loose laid on floors and fixed to walls using special plugs and sealing materials.

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This system is used extensively in conservation projects and new builds where a second form of waterproofing is required, there is often little or no preparation required to the substrate.

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Once the membrane has been fitted, wall surfaces can be dry lined or plastered directly. Floors can be screed or a floating dry board system can be installed.

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According to BS8102:2009, a waterproofing expert should be consulted at the outset of a structural waterproof design.

Working with Heyen from the start of a waterproofing project means we can provide the specification and materials to comply with the recommendations of BS8102-2009 right through to the end.

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Sourcing all your materials from Heyen means that there are no non-compatibility issues when a combination of systems is used.

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All materials supplied or manufactured by Heyen carry third party accreditation. Click here to view some of the projects that we've been involved with.

1) BS 8102: 2009, Code of practice for the protection of below ground structures from water from the ground, defines three types of systems - Type A. Type B, and Type C. Any of these or a combination of two or more systems, may be specified as a structural waterproofing project.

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2) Type A waterproofing comprises various categories of barrier systems that are applied to vertical and horizontal concrete and masonry.

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Talk to us about which would be the most appropriate to your project.

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3) Type B protection, used for concrete waterproofing, is defined in BS8102: 2009 is where the structure itself is constructed as an integral water resistant shell.

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The water tightness of a Type B construction is reliant upon using a concrete of low permeability and with appropriate hydrophilic joint detailing.

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4) Type C waterproofing is defined in BS8102: 2009 as "drained protection" which is achieved by the incorporation of a drained cavity within the existing new or existing basement structure.