He added: "pro clima are pioneers not only in delivering Intelligent airtight solutions, but combining this with optimum protection against condensation and mould growth by utilising Intelligent membrane technology. Receiving BBA certification provides specifiers, engineers and homeowners with even more reassurance that the pro clima Intelligent Airtightness system will assist in delivering a robust airtight result.”

Ty-Mawr Lime's Technical Director, Nigel Gervis, commented: "BBA is the UK’s major authority, offering approval and inspection services to manufacturers, installers, construction products and systems. BBA certification is only awarded after systems or products have successfully passed a broad assessment involving laboratory testing, on-site evaluations and production inspections."

Nigel added: "It's a high per­form­ance va­pour re­tard­ing and air­proof­ing sys­tem used to cre­at­e an in­ner bound­ary for thermal in­su­la­tion in roofs, walls, ceil­ings and floors. It provides max­im­um pro­tec­tion from struc­tur­al dam­age and mould, even in com­plex or de­mand­ing struc­tures such as im­per­meable flat/pitched roofs, green roofs and in extreme en­vir­on­ments such as high moun­taineous re­gions."