Caulking Large Gaps In Concrete

If you have gaps wider than 1 4 the best practice is to fill them first with a foam backer rod such as.

Caulking large gaps in concrete.

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. Measure the size of the gap that needs to be filled. A single bead of caulk can fill gaps up to 1 4 inch.

If applied to large gaps caulk can sag out of the gap and create an unattractive mess. To remedy this issue i installed backer rod in the gap that i then covered with concrete crack sealant. How to caulk a large gap step 1. Using a caulk gun helps make sure you have an even application of caulk.

This will hopefully be the fix that keeps that wall of the sunroom nice and dry. Caulking concrete cracks install backer rod. Lower than the surface of. Most caulk can be scraped away with a putty knife and sharp.

Use foam backer rod into the gap with your fingers. Caulk backer rods are lengths of foam that help. Fill larger gaps with foam. Once the backer rod is set in place you can then caulk the gap as you normally would.

It comes in a squeezable tube with dimensions of 2 x 2 x 11 25 inches so that one can caulk surfaces easily. Set the rod 1 4 in. It also prevents dripping and arm. 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.

Once the caulk is dry you can paint or finish over it as you may have already planned to do. Fill and smooth the joint.