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With technology now a lot of liquid products have come from the USA and Europe. With a lot of these products they are older systems that with time are becoming a lot better, easier to use and speed of application are second to none. With major companies such as Topseal, Sikka, Kemperol, Polyroof, Westwood, Bauder, Triflex, Langley and many others. Some use the same specifications but vary slightly with a lot of the companies offer multiple systems that meet the field requirements. All are cold applied and are spray coated, roller or brush applied and area’s in excess of 500m² can be achieved in a single working day. A lot of differences come with system build up such as polymer modified glass reinforced, hot applied polymer bitumen, flexible unsaturated polyester resins, polyurethanes, bitumen emulsions, Polyurea, Methacrylate’s and water dispersible polymers.
All have their strengths and weaknesses, some come with a 5-year guarantee, others with a 40-year Guarantee, what make these products even more attractable is the ease of application with a 1-4 day course the skill level is more than attainable for installers to learn to strengths and also the pit falls with these systems. With time served with these products they have ‘ironed out’ all the common faults that can be associated with installing a waterproof membrane system. As long as the installer has carried out the training and has adhered to the manufacturer with on site inspections before, during and after the installation, this keeps the quality control going within the roofing sector.
The question has to be ‘what is the roof used for?’ and has the particular system chosen can cover the requirements to keep the building walkway, car park or podium dry for the period of warranty.