house wrap prices

House wrap melt and compounded with high performance composite materials, the product has good waterproof, permeability and resistance to aging performance, product has a unique respiratory function, can make the water vapour through freely, but cannot penetrate after condenses into water, so as to guarantee the building inner dry and comfortable, at the same time, avoid condensation water damage the structure of the maintenance structure of roof and wall.House wrap(breathable paper) is a new kind of polymer waterproof material.From the production process, the technical requirements of house wrap than the general waterproof material is much higher;At the same time from the quality point of view, house wrap also has other waterproof materials do not have functional characteristics.House wrap in the state of water vapor, water particles are very small, according to the principle of capillary movement, can smoothly permeate to the capillary to the other side, thus the phenomenon of vapor penetration.House wrap (breathable paper) is a new kind of polymer waterproof material.From the production process, the technical requirements of house wrap than the general waterproof material is much higher;At the same time from the quality point of view, house wrap also has other waterproof materials do not have functional characteristics.When the water vapor condenses into water droplets, the particles become larger. Due to the surface tension of the water droplets (the water molecules "pull against each other"), the water molecules cannot successfully break away from the water droplets and penetrate to the other side. In other words, the water penetration is prevented.House wrap is spread by outside the building thermal insulation layer of a layer of thin film, thin and soft transparent sheet), steam and fully House wrap technology is by strengthening building air tightness, water tightness to achieve saving energy consumption, protect the living environment, thus improve the durability and comfort of buildings, can be more effective to ensure the maintenance structure (wall and roof) drying, and to have the significant effect.House wrap in the state of water vapor, water particles are very small, according to the principle of capillary movement, can smoothly permeate to the capillary to the other side, thus the phenomenon of vapor penetration.When the water vapor condenses into water droplets, the particles become larger. Due to the surface tension of the water droplets (the water molecules "pull against each other"), the water molecules cannot successfully break away from the water droplets and penetrate to the other side. In other words, the water penetration is prevented.

1. The practice of strengthening building air tightness and water tightness proves that no matter what form of facade is adopted or the form of roof laying, the tightness of the enclosure structure cannot be guaranteed.House wrap in the state of water vapor, water particles are very small, according to the principle of capillary movement, can smoothly permeate to the capillary to the other side, thus the phenomenon of vapor penetration.When the water vapor condenses into water droplets, the particles become larger. Due to the surface tension of the water droplets (the water molecules "pull against each other"), the water molecules cannot successfully break away from the water droplets and penetrate to the other side. In other words, the water penetration is prevented.For the external wall, it is difficult to avoid the plastering crack, the lapping of the hanging board is difficult to be strict, and the simple masonry block is not able to do "impervious wall".These problems are more pronounced around the building's yin-yang angles, joints and Windows and doors (D&W).Through these non-closed pores, air flow and water vapor can invade the building envelope, thus seriously affecting the energy consumption, durability and comfort of the building.

2. Building energy consumption rainwater and water vapor invading into the building envelope with airflow will reduce the effective thermal conductivity and thermal resistance of the insulation layer, resulting in more energy consumption.Of course, the effect of water vapor on different insulation materials (used in industry and architecture) is different.The invading airflow will form convection cycle in the building envelope, which will also reduce the effective thermal resistance of the insulation layer, resulting in more energy consumption.Similarly, the impact of air flow on different insulation materials is different.When air flows into the room, people will have to use larger hvac equipment to compensate for the heat/energy loss, thus increasing the building energy consumption.

3. The durability of the building will invade the water vapor inside the enclosure structure, which will lead to the formation of water vapor condensation in the wall cavity (the so-called condensed water), accelerate the aging of building materials, such as steel corrosion and wood decay, and thus have a serious impact on the durability of the building.

4. The invasion of building comfort airflow will adversely affect indoor thermal comfort;Pollutants deposited on different building components and radiation from building materials or outdoor environment will affect indoor air quality.Water vapor entering the building envelope creates conditions for condensation of water vapor in the envelope, leading to mold formation, which affects indoor air quality and the health of occupants.It can be seen that strengthening the building's air tightness and water tightness is crucial to building energy conservation and environmental protection.Due to the existence of indoor and outdoor temperature difference, the condensation inside the building envelope is inevitable.But in fact, only when the envelope is always in a humid state, it will cause moisture problems, leading to adverse effects on building energy consumption, durability and comfort.Therefore, in order to avoid the occurrence of problems, it is particularly important to ensure the building's vapor permeability, so that it can achieve natural drying through the form of water vapor diffusion to the outdoor.

house wrap


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