How to waterproof the foundations of houses from the outside1 — Dig the soil around the perimeter of the foundation. The first step in installing an outdoor waterproofing membrane is to start digging. Foundations must be excavated to the foundation, which can be up to eight feet deep in a full basement. The excavation must also be several feet wide to allow room for technicians to work and can range in length from a single affected wall to the entire perimeter of the house.
Apply a coat of cement-based sealant to all exterior walls. Cement-based sealants are easy to apply and can be used on concrete and masonry surfaces. This type of sealant will harden and close the pores of the concrete. In case a fine crack has not been fixed in the previous step with hydraulic cement, it will be covered in this procedure.
The exterior waterproofing of the basement can solve all these problems. The basic method is to excavate the soil away from the outer wall of the basement, install the appropriate moisture barrier, fill the surrounding area with gravel, and establish a footer drainage system. A sump pump may or may not be necessary. The basement wall may need some prep work and the moisture barrier may differ; Accurate Basement certified experts will be able to tell you precisely which moisture barrier will work best for your basement.
Gravel filling is especially important given the type of soil in our area. Whether the source of the problem is a crack in the wall, a faulty mortar joint, or a porous concrete patch, there is an exterior waterproofing solution that is made to order, but only an experienced basement waterproofing contractor will be able to recommend and implement it. The application of a waterproofing agent and the installation of a waterproofing membrane will not be as effective in keeping water out of basements and mezzanines and preventing structural damage resulting from water intrusion if the drainage system of the house has faults. As experts in waterproofing and moisture management, Basement Systems contractors specialize in designing waterproofing systems that fit the individual needs of a home.
To increase the waterproofing efficiency of polymerized asphalt, a dimpled waterproofing membrane is used to cover the outside of the basement walls or the perimeter base. If the foil test showed that water soaks into the basement walls and leaves them damp, seal the inside of the walls with a high-quality waterproof paint, such as DRYLOK White Extreme Waterproof (available from Home Depot).