Renco Home Improvements – Crack Repair
In order to ensure your basement is properly waterproofed, repairing any cracks in your foundation is absolutely essential. Foundation crack repair will not only prevent and protect against water seepage, but can also bring the added benefit of maintaining your home’s structural integrity.
The best way to repair cracks in homes with poured foundations is by injecting epoxy or polyurethane foam into the cracks at low pressure. This is currently the most effective and efficient foundation crack repair technique.
Foundation cracks can be divided into two basic types: Structural and non-structural, and require different approaches when it comes to repairing them.
Non-Structural Foundation Crack Repair
A non-structural foundation crack is one that does not pose a threat to the structure of the home, and typically only results in leaks during rain storms or when snow is melting. Despite the lack of structural threat in this case, water seeping into your basement is still a serious matter that requires attention.
Water leaking into your home can ruin your belongings, walls and floors, and contribute to the growth of mold. Left unattended, these types of cracks may also get worse. If you don’t act fast to address a crack in your basement, no matter how insignificant it may seem, it’s only a matter of time before you find that water has entered your home.
A Basement Wall Crack and Leak
This type of crack is the result of foundation shrinkage due to water evaporating from the concrete. It would typically happen within the first month after a foundation is poured. The wetter the concrete mix is initially, the more shrinkage will happen, increasing the likelihood of cracks forming. The natural setting of the concrete can also lead to cracks.
For foundation cracks that are wet and actively leaking, we normally use urethane as a sealant material. It’s a flexible substance that is easy to inject into the crack, and expands to fill the cavity when it comes into contact with water.
Structural Foundation Crack Repair
These types of cracks are extremely serious as they pose a risk to the structural integrity of your home. Sure sign of a structural deficiency are horizontal cracks, and cracks wider than a 1/4 inch. Structural foundation cracks are normally the result of movement, whether it’s caused by temperature changes, soil pressure or soil shrinkage.
In this case, epoxy is the material of choice for repairing the crack. Because the crack was initially caused by stress resulting from movement which can continue, epoxy alone is not generally enough to ensure the repair of the crack. Further reinforcement, in the form of carbon fiber countersunk staples or straps, is often necessary to ensure that the crack does not expand.