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.
Proctor Reflectashield TF 0.81 has the highest performance of an reflective vapour permeable membrane. It is specifically designed to enhance the thermal performance of timber and steel frame structures. Refectashield TF 0.81 is a non-woven polypropylene film laminate, providing excellent emissivity and breathability, as well as secondary protection to the building during construction.