The A. Proctor Group are constantly reviewing their product portfolio to keep up with current legislation. The A. Proctor Group have re-tested Reflectashield TF 0.81 at the National Physics Laboratory (NPL) resulting in an uplift of the claimed thermal performance to an R-Value of 0.81m2K/W.
Reflectashield is a vapour permeable low emissivity membrane for use externally on timber frame buildings. As such to maximise the thermal efficiency of the membrane the time of exposure should be kept to a minimum. However the membrane will maintain the function of a breather membrane in terms of water hold out for up to three months exposure.
Reflectashield TF 0.81 complies with the vapour resistance requirements set out by BS 4016, TRADA and the NHBC.