Wetherby Building Systems is one of the first EWI system manufacturers to gain BBA (British Board of Agrément) approval for grey polystyrene insulation.
EpsiTherm, a graphite enhanced EPS insulation board, is supplied by Wetherby as a main component of their Epsicon and Epsiwall external wall insulation (EWI) systems , which can both be used on new build and refurbishment projects. The product has undergone rigorous testing and has surpassed all requirements set by the BBA and ETAG 004.
The British Board of Agrément is the UK’s leading authority offering accreditation and inspection services to manufacturers and installers that
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