Caulking Large Gaps In Concrete

The gap in question was previously filled with either fiberboard or concrete crack sealant but enough of it has deteriorated to conceivably allow moisture in.

Caulking large gaps in concrete.

Once the caulk is dry you can paint or finish over it as you may have already planned to do. Fill larger gaps with foam. It comes in a squeezable tube with dimensions of 2 x 2 x 11 25 inches so that one can caulk surfaces easily. A single bead of caulk can fill gaps up to 1 4 inch.

Fill and smooth the joint. Similar to weatherstripping caulk strips are pre shaped rolls of sealant that have a peel and stick. Remove all old caulk from the joint to be filled. Caulk backer rods are lengths of foam that help.

Fill the crack with urethane caulk similar to what you would use for driveway caulk. Use foam backer rod into the gap with your fingers. Using a caulk gun helps make sure you have an even application of caulk. To remedy this issue i installed backer rod in the gap that i then covered with concrete crack sealant.

It also prevents dripping and arm. How to caulk a large gap step 1. Caulking concrete cracks install backer rod. Set the rod 1 4 in.

The dap concrete caulk comprises of high quality silicone rubber which offers efficient results and durability. However the 13 3 ounces weight is heavier than most caulks. Lower than the surface of. Most caulk can be scraped away with a putty knife and sharp.

Once the backer rod is set in place you can then caulk the gap as you normally would. Measure the size of the gap that needs to be filled.