Whether the source of the problem is a wall crack bad mortar joint or patch of porous concrete 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.
Waterproof basement walls exterior.
It s also the most expensive often 15 000 to 30 000.
A waterproof membrane is often installed on the outside of the basement wall and the system also requires putting in a buried sump pump where water will collect and then be pumped to the surface.
Do not use tar.
Exterior basement waterproofing involves digging out the dirt around basement walls applying a moisture barrier and installing a specially designed dimple board that deflects water away from the.
Tar will become very brittle and will crack eventually.
Exterior waterproofing involves excavating all around the house to the full depth of the foundation walls then installing a waterproof coating or membrane topped by drainage panels.
The following should be avoided when waterproofing a basement.
Don t use limestone to backfill.
The surest way to waterproof your basement walls is a full scale exterior waterproofing solution.
The plastic like material will peel and moisture will make its way in.