Design Buy Build Issue 64 2023 | Page 44

COATINGS , SEALANTS & PAINTS

SEAL IT WITH CONFIDENCE

ONE COAT ROOF SEAL SYSTEM - 100 % WATERPROOF HYBRID BARRIER FOR ROOFS !
With unseasonal downpours currently being experienced on a weekly basis , this is a season where integrity issues associated with roofing installations , repairs and maintenance are proving a challenge to say the least .
Over the past 12 months , the roofing and construction industry has had to adapt , and traditional ways of working have continued to be challenged across the roofing sector due to raw material shortages , labour cuts and working conditions .
The specification of any roofing installation , whether new or refurb , must address the repairs required , compatibility of new waterproofing system with existing substrate and load capabilities . Producing a system that best fits the brief in terms of buildability and performance as well as visually looking appealing can be complex . As roofing products technology improve there is the opportunity to not necessary replace like-for-like but instead upgrade to improve the installation , and this does not have to come at an extortionate cost .
Weather changes also affect waterproofing systems : when it is hot some membranes can set too quickly through water evaporation , leading to holes and voids . Likewise , when it is cold , ( below 5 º C ), curing times can be significantly affected , and not cure at all , leaving it soft on the inside and thereby not adhering to the substrate . And in freezing conditions ice crystals can destroy the structure – all leading to roofing failures . This makes it difficult for contractors to install waterproofing systems in extreme weather conditions and until recently , it was generally the norm that roofing systems couldn ’ t be laid for at least 24 hours after rain , or where high levels of humidity or freezing conditions were experienced .
The new generation hybrid liquid membranes however have been developed to combat these problems . Not only can they be applied at below freezing temperatures ( when used with a catalyst or accelerator ) they can also be installed on to wet surfaces or whilst it is raining . They also boast rapid curing times , a huge benefit when refurbing occupied premises where time on-site can be limited . This also helps reduce labour costs .
The cold applied liquid membrane market has been steadily growing over the years . Although not new technology , the benefits to both user and customer have seen an increased demand for this type of product . Benefits and advantages of specifying and installing lightweight , flexible systems for commercial and domestic markets provide a straightforward solution , a product that can be managed by installers without risk ; as opposed to having to use traditional lead based , torch-on or hot melt products that come with substantial health and safety issues .
Not only do these systems deliver a visual enhancement of the roof they offer all the expected performance characteristics required for waterproofing flat roofs : ease of application , improved temperature resistance and stability as well as substantial health benefits and long-term durability and extended lifespan , when well-maintained and treated with appropriate care .
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