Yes, waterproofing membranes can be breathable. Breathability refers to the ability of a material to allow air or water vapor to pass through it while still preventing liquid water from penetrating. Many modern waterproofing membranes are designed to be breathable, allowing moisture vapor to escape from within while still keeping out liquid water. This is especially important in applications such as waterproof clothing, outdoor gear, or building materials where moisture control is necessary to ensure comfort and prevent the growth of mold or mildew. Breathable waterproofing membranes typically use advanced technologies such as microporous membranes or coatings that allow water vapor molecules to pass through while blocking larger liquid water molecules.
No, waterproofing membranes are not typically breathable. They are designed to prevent water penetration, but this also means that air cannot easily pass through them.
