How To Repair A Leaky Concrete Wall
The trick to this is to find a solution that will not peel off the wall or fail as the wall naturally expands and shrinks over time.
How to repair a leaky concrete wall. If a concrete crack is moving the crack can also split open the sealant. Step 4 use a margin trowel to thoroughly mix the material to a heavy putty consistency making sure that the mix is uniform and lump free. It can also develop small pinhole openings that act as capillaries for water transmission. We offer the following three solutions for leaking walls and crack repair.
The only way to repair foundation wall cracks successfully is by the injection process. When properly done sealing leaking wall cracks is a permanent effective solution. How to fix poured concrete foundation leaks from inside leaks in poured concrete foundations the most common type of foundation constructed since the late 1970s are normally repaired from inside using pressurized crack injection because it is inexpensive and completed within a couple of hours at any time of the year. A leaking block foundation wall is fixed from the inside by draining the block walls into a drain system installed beneath the basement floor.
Check out this page for more detail on interior perimeter drain systems. The injection process fills the crack from top to bottom from inside to outside. Concrete is a porous material when fully cured. Injecting a typical wall crack with an epoxy or urethane resin is done under pressure pushing the material from the inside all the way to the outside.
Seal the wall crack. If you have very small cracks in your concrete wall use a sealant or a brush on compound that you apply to the wall like paint. So only use sealants in situations where the leak is a stationary problem. The captured water is then routed to a sump pump for evacuation to outside.