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RCI March 2018

Project1_Layout 1 07/05/2013 FLAT ROOFING & WATERPROOFING SYSTEMS applied the Kemperol 2K-PUR resin in a single wet-on-wet process. The liquid resin was applied onto the drying areas using a roller, with a reinforcement fleece laid directly on to the wet resin, immediately followed by more resin on top to ensure complete saturation of the fleece. Once cured, the resin formed a seamless, elastomeric waterproof membrane that cannot delaminate, is UV-stable and bonds directly to the substrate. As the Kemperol 2K-PUR system is ideal for complex detailing, this also meant easy installation for operatives around details, such as existing plant boxes on the surface of each terrace area. The decorative Kemperdur TC surfacing system which incorporates a coloured quartz finish was then installed, providing a robust slipresistant surface finish. The installation team at DeeBee completed the refurbishment of the Buckhaven drying areas on time, to budget and specification. Sustainable refurbishment Many local councils face a similar dilemma when undergoing housing conservation work – how to successfully refurbish buildings of the past to provide buildings for the future. Plans developed, and products specified must offer a durable, longterm solution, as well as address the immediate challenges on-site. Brian explains the potential health and safety risks on-site if an unsuitable waterproofing system was specified. He said: “Kemper System’s 074 MARCH 2018 RCIMAG.COM waterproofing solution is eco-friendly, being derived from sustainable sources, as well as being odourless, which was an added bonus for the client, as work was able to be carried out whilst homes were still occupied. This project showcases just how versatile Kemper’s system is, and an ideal solution for a housing project of this kind. With a BBA-accredited 25-year service life, Kemperol 2K-PUR was the ideal choice for the drying areas at Buckhaven.” www.kempersystems.co.uk The final installation Flex-R urges contractors not to ‘mix-and-match’ The warning comes as the supplier is concerned that contractors are leaving themselves wide open, following the Grenfell Tower fire Roofing contractors are being urged not to ‘mix and match’ EPDM membranes, adhesives, primers and tapes from different suppliers, not just because it invalidates product warranties, but also because it compromises vital fire safety standards. The warning comes from Duncan Winter, trading director at Flex-R, who is concerned that roofing contractors are leaving themselves wide open as the landscape for the whole construction industry changes following the Grenfell Tower fire. The head of the company says that it’s time to draw a line under the practice of mixing and matching. Duncan said: “Grenfell is a real game changer for the construction industry and its supply chain, which cascades down to include specialist contractors and suppliers of materials such as roofing supplies. “We know that the roofing sector is extremely competitive and cost sensitive, which is why roofers can sometimes try to save a few quid here by, for example, buying their ClassicBond EPDM membranes from one supplier and their adhesives, primers and tapes from others. “On one level, it poses the problem of invalidating warranties on products, which in itself, could be hugely inconvenient and costly if contractors have to revisit installations to rectify or replace roofing. “But the other bigger-picture concern is the non-compliance with ratings and standards such as Broof(t4) in respect of external fire exposure. Since Grenfell, everything’s changed: fire safety is firmly in the spotlight, and no contractor can afford to put a foot wrong.” Broof(t4) is the highest standard for roof coverings exposed to external fire, as set out in the classification methodology of BS EN 13501- 5: 2005, where it is subject to a two-stage test method incorporating burning brands, wind and supplementary radiant heat. It covers three key areas: no penetration of roof system within 60 minutes, specimens burn for less than five minutes (in a preliminary test, after withdrawal of the test flame) and flame spread less than 0.38m across the region of Duncan Winter, trading burning (in a preliminary test). director at Flex-R Duncan added that companies like Flex-R have led the way in developing, testing and refining complete systems for products, such as ClassicBond EPDM membranes to ensure their performance and a service life in excess of 35 years. He said: “We’ve done the right thing by the industry in developing all the component parts for a sustainable, long-lasting rooftop that meets all the various requirements of technical and safety standards to give roofers complete peace of mind that they’ll get the job done right, first time. Mixing and matching simply isn’t worth it anymore.”


RCI March 2018
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