Excellent breather membrane,Breathable underlay for roofing, Eco-friendly to be completely ... film coated with Nonwoven (non-breathable or low vapor permeable or highvapor permeable,2layers or 3layers or ... , soft handle,heat insulation, Excellent performance breather membraneBreathable underlay for roofing, also widely applied in medicalEco-friendly to ... . PE film coated with mesh or vapor barrier