68 roofing Would you buy a car with a range of different
parts, some branded and some not? Using different parts actually designed and manufac- tured for a completely different make of car? That is the challenge that the roofing industry faces. How can you guarantee the reliability of a product with different components, supplied by different manufacturers, that are expected to work together seamlessly? Guarantees are essential, giving everyone in the
supply chain added reassurance. How can we be confident about building products unless we guarantee them? In law, a guarantee is an agreement given, without any extra charge, to repair, replace or refund on goods which do not meet the specifications set out in the guarantee. A warranty is an insurance policy which provides cover for the unexpected failure or breakdown of goods, usually after the manufacturer or trader’s guarantee has run out. If we, as members of the construction industry,
seriously want to cut down on defective roofs, it is not good practice to mix products. Many leading products are designed and tested for use in combination with each other over many years. Russell Roof Tiles advises contractors that to
achieve the best effect, tiles should be mixed from different batches, normally a minimum of three. This is because while the size, shape and weight of tiles are controlled during the manufacturing,
the colour shading is not 100 per cent the same in every batch. The shading can be affected by a number of different factors during the manufacturing process. Products should be installed using normal
standards of good workmanship and meet the requirements of the British Standards for slating and tiling (BS 5534 and BS 8000-Part 6). The substitution of one manufacturer’s components with other products at any stage of construction
often invalidates a guarantee. In the roofing industry, warranties as a
whole need to be addressed, both in terms of specification and in the mixing and matching of different manufacturers products – a challenge the industry has to tackle head on, and work closely with the NHBC to overcome.
Mark Parsons is technical director at Russell Roof Tiles.
Enq. 191
Install with ease! Quality products from the roofing specialist
• A broad range of products designed for ease of handling and installing • Sustainable and high performing products • Comprehensive technical support • Nationwide merchant network
• Keep an eye out for new products coming soon!
Call us on 01604 433000 or visit our website for details. respond online at
www.hbdonline.co.uk
www.ubbink.co.uk Enq. 192
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