The foundation or footing of a house is the part of the house that stretches below the ground. Though this part of your house is unseen, it provides much of the support for your home's structure. When you have water issues around the foundation of your home, the concrete can absorb the moisture and that may eventually lead to a weakening of the foundation. You can help eliminate many of these issues by waterproofing your home's foundation.
Things You'll Need
- Cleaning brush
- Waterproofing membrane
Access the house's foundation. Dig a trench that spans the length of the wall on one side of the house. Dig the trench wide enough that you can easily fit inside it and deep enough that you see the bottom of the foundation, generally between 3 and 6 feet deep.
Scrub the concrete wall of the foundation with a rag and water until dirt has been removed and the wall is clean and level. A cleaning brush can be used to remove heavy areas of dirt. Allow the wall to dry fully.
Unroll one sheet of waterproofing membrane and get into the trench. Hold the membrane at one end of the foundation wall. If the membrane is too long for the foundation, cut it to size with heavy-duty scissors so that it fits the length of the foundation exactly.
Roll the membrane again so that the adhesive side is on the outside. Remove the backing paper at one end of the membrane and line it up with the top of the foundation.
Smooth the membrane out on the wall. Unroll a few more inches of the membrane, peel away the backing and smooth the membrane over the wall. Continue the process until the entire membrane is applied to the wall.
Add as many sheets to the wall as necessary to cover that side of the foundation. Overlap each sheet of the membrane by 1 to 2 inches to get full coverage.
Fill in the trench once the membrane is installed. Apply the membrane to the other sides of the house, one side at a time.
Tips & Warnings
- You may need help to install the waterproofing membrane. ConcreteNetwork indicates that the membranes are sticky and can be difficult to manage.
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