The most effective way to waterproof the outer walls of the basement is from the outside. It can be applied with a trowel or sprayed on a thick layer of the membrane, a polyurethane material modified with asphalt, to seal the foundation wall against outside water. Elastomeric membranes are made of modified asphalt and have excellent waterproofing characteristics. Outdoor basement waterproofing consists of several different methods that remove unwanted water from your home.
Wet, damp, or completely damp basements can cause paint peeling, mold and mildew growth, rotting wood, and damage to stored items. This is strictly a job for a foundation contractor, but it could greatly reduce basement water problems. To protect your basement from water, you'll need to excavate the entire outer perimeter of the basement to the base of the base. It makes sense, even for someone who has never done or seen basement waterproofing work, that somehow sealing the basement from the outside is the optimal way to prevent water from entering, and in many cases, they're right.
A high-quality dehumidifier will help remove excess moisture from the basement, but the best long-term solution is to waterproof the walls. So, if you live in an area with a high water table or if your community is experiencing a particularly humid year, your normally dry basement can receive water. The drain is similar to the exterior drain tile described above, but is located just inside the basement walls; then, new walls are built inside the drain so that the original basement walls are not visible. If you or a previous homeowner painted the basement walls, you'll need to remove the paint before applying the sealant, which only adheres well to bare masonry.
Sealants soak and react chemically with the ingredients in concrete or brick, forming a hard, impermeable surface. If you're trying to figure out how to cure a damp or moldy basement, you're probably curious about ads for products that claim to waterproof basement walls. The basement wall may need some preparation work and the moisture barrier may be different; the certified experts at Accurate Basement will be able to tell you precisely which moisture barrier will work best for your basement. Applying the right product to walls will be key to having a successful waterproofed basement.
Another method to make the basement walls dry is to install a drainage channel under the floor inside the basement. When the basement is free of water, proceed to effectively inspect, fix and waterproof the basement walls.