Why can't a surface repair such as hydraulic cement or urethane caulk be used?
These types of repairs consistently fail in a few short years. Expansion and contraction of the wall, though minimal, cause service repairs to shadow crack and leak again. With urethane or epoxy injection this does not occur.
How does crack injection work?
Urethane or epoxy is forced into the wall filling the crack from inside the house all the way to where the concrete wall meets the dirt.
How long does it last?
Crack injection, properly installed, should last the life of the structure.
When should epoxy be used and when should urethane be used?
Both urethane and epoxy can be used to stop water. Urethane has the advantage of expansion making it easier to install. Expansion prevents the product from leaking out of the crack before it cures and fills more thoroughly. Epoxy gives the crack structural strength.
How can I tell if the crack needs structural repair?
Signs of structural cracks include horizontal cracks, cracks ½” or greater, and offset cracks. These are just a few of signs of structural damage. If there is any question of structural problems, a professional repair contractor should be called.
What if the crack is very small?
It is rare that a crack is so small it cannot be injected with Emecole's crack injection system. Cracks which are barely visible to the naked eye are good candidates for crack injection.
