Inspect- Cracks can occur for a number of reasons. To repair cracks and address the real root of the problem, you will need to deeply inspect your home's foundation. In most cases, you will able to detect the cause of the cracks yourself. The most common reason for these cracks to develop is settling of the soil under the home. Another common cause is excessive moisture around the foundation. If the crack is small, you can easily repair it using DIY methods. But if the crack is very large, or the problem is recurring, call in a professional for evaluation.
Preparing the Crack for Repair- You will first have to clear all the loose material with the help of a screwdriver and a brush. You can use a hammer and a chisel to widen the crack and undercut the crack edges. After this, rinse the crack with water using a garden hose and pat the area dry using a towel.
Repairing Thin Cracks- There are many patching compounds available in the market, which you can apply using a paintbrush. You can also patch the crack using a cement mixture. Pack the mixture firmly into the crack and level it with a finishing trowel. After about an hour, go over the surface in circular motion using a float or a trowel. This will help it in blending with the surrounding surface.
Repairing Larger Cracks- These can be repaired using Polyurethane, silicone or latex concrete caulk. They can also be filled using hydraulic cement. But it is always advisable to take the help of an expert.
Sealing the Walls- After the crack is filled and dried, apply waterproof sealant to the foundation walls. This will help in preventing water infiltration.
Foundation crack repair is important to preserve the integrity of the foundation by keeping water away from it.
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