Waterproofing materials that go on like paint fill the pores in the concrete or masonry walls and prevent water from leaking in.
How to repair a leaking concrete wall.
The captured water is then routed to a sump pump for evacuation to outside.
The only way to repair foundation wall cracks successfully is by the injection process.
Project instructions step 1.
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.
Start by removing loose material with a wire brush.
Seal the entire concrete wall with a waterproof masonry product.
To be effective these coatings must be applied to bare concrete or masonry walls.
It is important not to create v shaped edges as the hydraulic.
We offer the following three solutions for leaking walls and crack repair.
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.
Then clean off any white powdery efflorescence with masonry cleaner.
Allow the concrete to dry for 24 hours.
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.
Squarely cut or undercut the edges of the crack.
So only use sealants in situations where the leak is a stationary problem.
Seal the wall crack when properly done sealing leaking wall cracks is a permanent effective solution.
If a concrete crack is moving the crack can also split open the sealant.
Mix the concrete with water until it reaches the consistency of thick mud.
Pack the concrete into the hole to fill the broken area.
A leaking block foundation wall is fixed from the inside by draining the block walls into a drain system installed beneath the basement floor.
Using a masonry chisel enlarge the crack to a minimum inch width and then remove all loose material.
Mix hydraulic water stop by adding.
Check out this page for more detail on interior perimeter drain systems.