breathable
membrane is a synthetic roof underlay membrane, made of
polypropylene. It is a functional membrane, it main function is to
make the roof or wall breathable. The membrane is not only
breathable, but also waterproofing. Because of this function, it
can allow moisture to get out of roof or wall easily, and when the
moisture meet cold tiles or shingles, it will be condensation as
water-drop, and flow away on the breathable membrane, thus keep the
inside insulation dry, avoid wet or mouldy.
Exceptional high performance medium
weight vapour permeable breather membrane for warm or cold
pitched roofs, eliminating the need for traditional eaves / ridge
ventilation.
The main function of the breathable roof
membrane is to reduce the amount of heat lost by air leakage
through the ceiling and from the loft space to the
outside
