Flat roofs have been a feature of modern building practice for many decades and until now the problems of adequately waterproofing them were not easy to solve.   Flat roofs are often exploited as a storage facility for plant such as air conditioning and telecommunication systems.   TRC with high performance liquid applied roofing systems can install a homogeneous waterproof skin which will cover all flat roofs providing a guaranteed attractive and weatherproof layer which may be used in refurbishment programmes.