Koval Building Supplies
Rainscreen drainage mats are used to create a weather resistive barrier and provide additional space for drainage. They also contribute to air circulation and ventilation between exterior finish materials and wall sheathing. A combination of water drainage and air circulation reduces the damaging effects of water penetration into the walls. Rainscreen mats are designed for use with architectural (cultured) and natural stone, traditional stucco and E.I.F.S., fiber-cement and wood based sidings, as well as masonry, metal and other wall cladding materials.