Wooden structure dedicated waterproof breathable membrane (breathing paper) This product uses a different breathable formula, production technology to produce different amounts of ventilation products, air volume from (300-3000g / m2 / 24h) is widely used in the construction of roofing fields. Class A (low-end products): 2.1 m, impermeable or low permeability product, using a variety of different performance breathable material, the use of hot-melt cast composite technology, suitable for outdoor temperature is high, relatively dry, low humidity, water vapor regions. Class B (high-end products): 1.6 m, high permeability, high temperature. At present, domestic manufacturers almost always use hot melt glue composite technology to produce high breathable waterproof breathable material. The disadvantage is that low permeability ratio, since the middle of breathable microporous film is actually hot-melt adhesives are blocked, the other, the biggest drawback is resistant to temperature is very low, can only withstand temperatures of 60 degrees. Because this is actually similar sticker glue, hot melt pressure sensitive adhesive itself is a form. Therefore, the waterproof breathable membrane technology, the life of this very short, only counterfeit products truly waterproof breathable membrane. I am using the latest technology, pure hot compound, most manufacturers use the past to overcome the shortcomings of the composite glue, no glue full production, the surface smooth, wrinkle-foaming, good fastness, high strength and air permeability , aging temperature. Therefore, temperature can reach 100 degrees or more, high-strength anti-aging, which is currently able to meet EU standards real products for domestic latest technology, just north of the Yangtze Our company can produce such products.