Our breathable membrane is just used under the roof tiles and just laid on the insulation layer of roof.
Breathable membrane for asphalt roofing sheet
Application: It is used on tilted roofs as additional covering to protect heat insulation. This way the insulation does not get damp. The inner side of the rolled foil is turned upwards towards the light (sun or rain). When a complete sealing is required, it is necessary to cover the foil by at least 10 cm and all the connecting joints with a self adhesive water resistant tape. Characteristics: The foil is permeable on the outside but is water resistant up to a water column of 5cm on the inside and is not appropriate for heavier loads (more than 10 cm of snow) and for hydro insulation. secondary covering must be applied within 30 days.
Adavanges: It is possible to lay the foil lay directly on the heat insulation. and has very high stretch strength
Characteristics: breathable, water proof, water vapour permeable
Breathable membrane for asphalt roofing sheet Contact: Mr.Clock Zhong