Vapor barriers protect homes by preventing water vapor from escaping the building envelope. Leaking vapor barriers can lead to condensation in the walls and cause the wood to rot. Layfield’s vapour barrier is certified by the Canadian General Standards Board (CGSB) and satisfies the requirements for CAN/CGSB-51.34-M86, and new home construction building codes. Layfield's CGSB film contains stabilizers designed to ensure that the film will last the lifetime of the house. Applications · Wall and ceiling vapor barrier · Foundation damp-proofing · Sill and plate poly · Eaves protection