waterproofing. In areas subject to moisture exposure where additional movement can occur, uncoupling mats can be used in conjunction with tanking products to ensure a combination of waterproofing and uncoupling can be achieved. When waterproofing or no priming of the matting is required, such as with a waterproofed uncoupling mat, do ensure that the membrane and liquid coating can interface with the chosen drain.

While the uncoupling membrane was originally devised for the installation of ceramic tiles, uncoupling systems are now recommended for use when tiling natural stone on all substrates. Importantly, uncoupling mattings are recognised by most floor trade associations related to the tiling industry as a major benefit. Both the TTA and the Stone Federation of Great Britain recognise the value of using these products and also gives reference to their use in BS 5385 part 3, 4 and 5.

Non-cavity uncoupling mat systems are perfect for use in commercial or domestic environments, with some products actually capable of accepting loads on floors immediately following installation, due to having a condensed profile with almost no

compression. This makes them perfect for car showrooms, hospitals, and shopping centres, areas where vehicular traffic is present, and areas with mosaic tiles. Relatively new to the UK market, floating mats are loose laid onto the substrate and as such provide ‘true’ uncoupling – similar to the ancient use of sand as a buffer layer between the tile and substrate. The use of a floating uncoupling system seriously reduced preparation time and project cost – particularly when equipment such as floor grinders and sanders have to be purchased or hired in to remove any laitance on screed which could react to the adhesive used with bonded mat systems. Floors often need additional priming before accepting any cementitious tile adhesive. Floating systems also take away the need for the screed to be fully cured, because any residual moisture in the substrate is evenly distributed through a system of channels and then drawn off through the perforations in the mat via the grout joints. In this way, substrates that are still damp are not encapsulated.

David Wilson is UK head of technical standards and information at BAL

PUDLO Waterproof Systems introduces a new comprehensive range of solutions

A leading UK waterproofing systems provider, PUDLO Waterproof Systems, part of the DB Group (Holdings) Limited, is excited to announce its comprehensive range of gas and waterproof membrane solutions and cavity drain systems, providing a one stop solution for all your needs. With the introduction of this full range, PUDLO Waterproof Systems is a one-stop solution for all your waterproof and gas protection solutions. Its range fully adheres to the waterproof and gas standards BS8102:2009 and BS8485:2015 and is supported by an industry-leading service throughout your project. “PUDLO Waterproof Solutions continues to expand its product range, looking at providing the best products and services for the market. By continually listening to the needs of our customers, we introduce products to ensure our range represents a full, one-stop solution.” commented Liam Leonard, Technical Standard Manager at DB Group. With the inclusion of Types A, B and C into the PUDLO waterproofing range, systems can be combined to create a dual or triple solution, providing more choice than ever before. Get in touch to find out how it can help you on your project!

01954 780687 Helifix adds to its vast portfolio

Structural repair specialist, Helifix, has recently made an addition to its extensive range of over 100 Repair Details, which give full technical and installation information on how to overcome a wide variety of structural faults. The new Repair

Detail, RD WT35, gives guidance on how to connect a new timber frame to an existing masonry wall, when the new timber stud is erected within an existing masonry building and there is no access to install wall ties from the outside. The full range of Repair Details can be viewed, and individually downloaded, on the Helifix website.

020 87355200 Marley’s latest clay tile used on project

Marley pulled out the stops recently to help a customer complete a roofing project, which included the supply of its brand new classic red smooth acme double camber tile before it had even launched. Marley’s Regional Sales Director, Andrew Rooke commented: “It

became clear that a soon to be launched Marley product – a new classic red smooth acme double camber tile – could well be the perfect answer.” Determined to ensure the customer got the very best service, Marley subsequently arranged that the required small quantity of the new product from the trial run was supplied without delay.

01283 722588



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