1 When do existing models need reworking?
When a new roofing tile model is being developed, it goes without saying that there are certain aspects to be considered. A sophisticated, attractive design is very important, of course. The on-roof optical effect can be just as decisive as the “tactile” effect of a hand-held model. To meet the requirements of current standards regarding resistance to wind and water penetration, the roofing tile must have neat and distinct, durable interlocks and overlaps. It must install well, perhaps be compatible with existing prior-model tiles, and have the...
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