A good example of a durable long-term roof system is two-coat mastic asphalt, providing a waterproofing thickness of 20mm, which is then protected with thermal insulation and stone ballast. Recently, ...
Mastic asphalt is a mixture of limestone and bitumen commonly used for roofing, tanking, paving and flooring. The bitumen and closely graded stone are added together to form a molten mass that is ...
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