A waterproof breathable membrane is what material
1, waterproof breathable membrane is made of polymer breathable membrane and mesh reinforcement, as well as polypropylene fabrics, spunbonded nonwoven fabrics made through a variety of processing.
2, waterproof and breathable membrane, than some other waterproof materials, technology is much higher, and waterproof and breathable membrane than other waterproof materials, functional advantages are also much higher.
3, waterproof breathable membrane of water particles are very small, in the state of water vapor, transmitted to the other end of the capillary tube to trigger ventilation. After a period of time in the water vapor into water droplets, the particles will become larger and larger, resulting in water molecules have no way to successfully penetrate to the other end, which prevents the occurrence of water infiltration, so that the waterproof breathable membrane will really play a waterproof effect.
Second, how much waterproof breathable membrane a square square
Different brands, different thicknesses, different places to use the waterproof breathable membrane, the price is not the same.
1, Lipeng brand roof waterproofing breathable membrane, the price is about 4.5 yuan a square meter.
2, roof waterproofing breathable membrane, the reference price of about 3 yuan a square meter.
3, BORIS roof waterproofing breathable membrane, the reference price of about 5.5 yuan a square meter.
4, roof waterproofing membrane membrane material, the price is about 4 yuan a square meter.
The above prices are from the network, for reference only, specific to the local selling price as a standard.
Third, waterproof breathable membrane how to use
1, before the construction of waterproof breathable membrane construction area to clean up, the dust, oil and so on clean up to ensure that the waterproof breathable membrane paste effect.
2, waterproof breathable membrane in order to corner code of the paste is not less than two centimeters, and in the use of waterproof breathable membrane, try to avoid the use of welding methods, because the waterproof breathable membrane does not have obvious flame retardant effect, so do not use when there is an open fire operation.
3, in the construction of roofing, laying waterproof breathable membrane, should follow the water direction of the roof to lay, lap length is 10 cm.
4, if the roof above the aluminum alloy bracket, need to be through the waterproof breathable membrane, then you need to use butyl tape at the junction of the two of them around a circle, so that it will achieve better waterproof effect.
5, if the waterproof breathable membrane need to window frame or door frame for lap, then should use the waterproof breathable membrane, straight line flooding to seal, in the corner of the place should use the curve of the water to seal. Width should not be less than two centimeters corner, paste the width should not be less than 10 cm.
6, need to remind everyone to pay attention to the waterproof breathable membrane is not suitable for a long time in the sun, so if the external finish using waterproof breathable membrane project, to be completed in a short period of time, otherwise it will affect the effect of use.
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