Foundation Repair Contractors

How to repair cracks in a foundation?

Regarding the choice of materials used to renovate your building, be aware that this is an extremely important step in making your foundations waterproof.

Polyurethane and flexible epoxy are often the two components best suited to meet the needs of your foundations. Polyurethane, for example, is distinguished by great flexibility. Later in the article, we will discuss the products used for crack repair in more detail.

For repairing a crack in a foundation repair contractors, you therefore have two options: repair from the inside or from the outside .

If the extent of the crack is minimal, then there it is possible to proceed from the inside. On the other hand, if the damage is greater and the crack is active, it may be better to repair everything from the outside, which is also more expensive, due to the process that requires excavation. So it all depends on the crack and your budget ! In general, you can get away with it for a few hundred dollars.

Polyurethane , on the other hand, is a "highly resistant sealant, [which is] characterized by exceptional durability, tear resistance and a movement capacity of ± 25%" (Source: LePage - Polyurethane sealant for cracked concrete and masonry).

This product also has greater flexibility than epoxy , in addition to being hydrophilic, which means it reacts with water. When this happens, the elements form a waterproof composition which seals the crack, to form a control seal. Everything is therefore effective in countering cracks that lead to water infiltration.

A hydraulic pump is used to inject the polyurethane into the crack. This process ensures that the polyurethane penetrates the entire crack to its deepest point. It does not only clog on the surface! Finally, the products also have their limits and are only good for cracks of a certain dimension.