Filling Large Gaps In Concrete

Concrete joints for driveways patios and other additions can be large gaps in your pavement that you need to seal to prevent damage detritus filling them up and potentially future driveway.

Filling large gaps in concrete.

Caulking concrete cracks install backer rod. Gaps in concrete whether they result from cracks in the slab or occur between the slab and an adjacent surface can serve as openings that allow dirt moisture or insects into your home. Lower than the surface of. We ve noticed water damage in our sunroom which is bordered on one side by our concrete patio.

After a quick investigation we believe that water has entered the gap between the patio and the foundation. So filling them should be a maintenance priority. Once you are done filling the crack use a small brush broom or even a block of wood to rub across your patch to help match the consistency of your patch surface with the surface of the original concrete. This can be found at well stocked hardware stores but not always at large home improvement centers.

How to seal and fix a gap between foundation and concrete sidewalk or patio. Push the appropriate size backer rod into the gap below flush with the surface. Set the rod 1 4 in. The straight line gaps between the slabs has enlarged and some cracks are as wide as 2 inches.

My concrete driveway has eight large slabs. If we re right then that hopefully accounts for the water damage. If the concrete cracks continue to reappear call in a professional to rule out any larger problems. Fill larger gaps with foam backer rod sometimes called spline.

Fill the gap between a concrete patio and house. Fill the crack with urethane caulk similar to what you would use for driveway caulk. Fill large gaps or cracks in concrete to avoid damage to your slab. All it takes is backer rod and concrete flex sealant.

Use foam backer rod into the gap with your fingers.