The Roofing and Waterproofing Test Association was formed by the coming together of established independent UK test houses whose main operations are in the testing of waterproofing systems in the built environment.  There are two distinct operations in that respect:  the detection of leak sources in existing installations and the testing and certification of newly installed membranes and systems.

Over the past 3 decades, electronic testing, otherwise known as earth leakage or EVFM testing, has become the UK standard for determining the integrity of roof coverings and structural waterproofings. In that respect it has surpassed flood testing, due to its speed, accuracy, cost and environmental impact.

As can be seen from our Mission Statement, RAWTA is committed to assisting the roofing and waterproofing industries in raising standards by ensuring that installed systems are fully tested as far as can be reasonably expected.  To that end, it is considered essential that all field operatives undertaking such work are both fully experienced and competent in testing and have, or are aiming for, an NVQ in leak detection.  RAWTA has been working with CITB to develop a Level 3 NVQ for operatives, for which final approval was granted by the statutory bodies in December 2018.

Our aim is for members to provide consistency of test quality across the wide range of products and combinations thereof that are available for roofing, tanking and structural waterproofing.

Members are required to adhere to a strict code of practice where any shortcomings of a particular test method are flagged up to the client prior to commencing test.  They are also committed to adhering to recognized Health and Safety procedures during on-site work.