This product has been certified by the Building Research Establishment for its air leakage characteristics in accordance with the current Building Regulations. The product is a self-sealing ventilation ducting system comprising of pipes and self-seal couplings (125x60mm rectangular ducting with self-seal couplings) with together with other fittings will allow a mechanical ventilation system to be constructed from these products – duct size per certificate A, B and C.
Valid until 20th August 2019
http://www.verplas.co.uk/
