A basement waterproofing contractor can dry out your basement using interior or exterior waterproofing methods. If you have a finished basement and don't want it disrupted, then choosing an exterior waterproofing method might be best. Plus an exterior method blocks water from getting inside your basement so you don't have to fuss with an interior sump pump. Here's how your contractor might waterproof the exterior walls of your foundation.
Choose A Coating Or Membrane
The first step is to determine how to waterproof the walls. The choice might depend on the type of water problem your home has, but the contractor can choose whatever is needed to damp-proof or waterproof the walls. One option is a spray coating that dries to form a continuous water barrier with no seams that can leak. Another option is to adhere a membrane to the wall that blocks water from seeping through the concrete. Your contractor has to excavate soil away from your home for either of these waterproofing methods so the walls are exposed all the way to the footer.
Add Dimple Board To The Walls
A dimple board or dimple mat is a thick sheet of plastic material covered in bumps or dimples. It's positioned on top of the waterproof membrane on the foundation walls. These dimples create space and channels between the plastic sheet and waterproof membrane that direct water down to the soil before it can reach the walls. Since both the membrane and dimple board will be covered with soil when the job is complete, they'll be out of sight while they protect your home.
Add A Drain With Gravel
The final step is to place a drain in the ground that catches rain that rolls off the dimple board or membrane. The drain empties the water into the street or other location where it won't cause problems for your home or driveway. The drain is covered with gravel so rain can filter down easily. The gravel also acts as a barrier between the soil and wall of your house to reduce the effects of hydrostatic pressure that causes water to push through the concrete walls.
While these steps sound simple, carrying them out is a big job that might take a few days and cause a lot of disruption to your yard. However, it's worth it to put an end to a wet basement that creates a musty odor and forces you to dry out the space every time it rains. If you're tired of dealing with a wet basement and all the problems it causes, then you may want to discuss exterior waterproofing with a contractor to see if it's the right choice for your home.