Boris waterproof and breathable membrane

Boris™The series waterproof and breathable membrane is made of high-density polyethylene fiber, which combines the advantages of paper, film and fiber. This unparalleled and unique quality makes Boris™Series products are not only light and tough, waterproof and breathable, wear-resistant stab-resistant, soft and smooth, but also have excellent chemical resistance, tear resistance, opacity and low chip removal.

Working principle of waterproof breathable membrane

In the state of water vapor, the water particles are very small, and according to the principle of capillary motion, they can smoothly penetrate into the capillary to the other side, so that the phenomenon of vapor permeation occurs. When the water vapor condenses into water droplets, the particles become larger. Due to the surface tension of water droplets (water molecules "pull against each other"), water molecules cannot smoothly separate from water droplets and penetrate to the other side, that is, to prevent the occurrence of water penetration, so that the permeable membrane has a waterproof function.

Performance and Application of Waterproof Breathable Membrane

1. Air tightness of waterproof breathable membrane: The waterproof breathable membrane is paved outside the insulation layer, covering the whole building, effectively strengthening the air tightness of the building, thereby reducing air leakage and convective heat loss. The research report shows that the use of waterproof breathable membrane and no waterproof breathable membrane building heating and cooling energy cost savings rate of up to about 40%.

2, waterproof breathable membrane water tightness: waterproof breathable membrane excellent waterproof performance, tight coating, protect the building from water vapor and rain erosion. Effectively ensure the insulation effect and durability of the building, so that the building more energy-saving, environmental protection.

3. Vapor permeability of waterproof and breathable membrane: waterproof and breathable membrane is paved outside the insulation layer, which can ensure the effective discharge of water vapor in the enclosure system, solve the problem of condensation and moisture prevention, and protect the insulation layer. When the temperature difference between cold and heat produces condensation, water droplets will form on the roof or wall surface, which will invade the building or insulation layer, reduce the thermal efficiency of the insulation layer, and affect the durability of the building. After the waterproof breathable membrane is paved, the water vapor can be discharged smoothly through the waterproof breathable membrane. When the water vapor condenses into water droplets on the inner side of the roof tile, it drips directly on the waterproof and breathable membrane and flows out of the drainage channel smoothly.

4, reduce the project cost: waterproof breathable film protection insulation layer, insulation layer does not need to do fine stone concrete or coating waterproof material, can reduce the project cost.

5. Summary: The air tightness, water tightness and vapor permeability of the enclosure system are very important to the energy saving, durability and comfort of the building. In the late 1980 s, European and American countries developed waterproof breathable membrane and was vigorously promoted. Waterproof breathable membrane enclosure system is widely used in residential buildings and public buildings. The building structure using waterproof breathable membrane is known as "breathing house". In recent years, the Chinese government has paid more and more attention to building energy conservation. With the continuous improvement of energy saving and environmental protection requirements, the waterproof and breathable membrane enclosure system has gradually been paid attention to by the industry.

Use Boris™Series waterproof breathable membrane, can

Reduce building energy consumption and improve thermal performance

Improve building durability and extend building life

Provide perfect design scheme

Provide a complete product series and accessories, suitable for all types of construction

Easy and fast installation

green environmental protection material