Do You Know the Role of Nylon Mesh in Building Ventilation Systems?
The main function of the waterproof steam veneer is to delay the speed of water vapor passing through the roof or wall assembly. Nylon mesh filter ribbons supplier believes that there is no true waterproof vapor barrier that can completely prevent the passage of water vapor, but some waterproof vapor barriers are less permeable because of their lower permeability. Other veneers delay the penetration process even more. Permeability is measured in imperial perms (1 perms means 1 centimeter of water passes through an area of 1 square foot in 1 hour at a pressure difference of 1 inch of mercury) or nanometers per metric meter per pascal per square meter Centimeters to 1/7000 pounds). 1 perm is equal to 57.2 nanograms per square tear card per second per square meter. The velocity of the water vapor is equal to the water vapor pressure difference between the materials on both sides multiplied by the permeability of the waterproof veneer. The lower the permeability, the better th...