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.

Remove all old caulk from the joint to be filled. However the 13 3 ounces weight is heavier than most caulks. How to caulk a large gap step 1. Fill the crack with urethane caulk similar to what you would use for driveway caulk.

Lower than the surface of. Use foam backer rod into the gap with your fingers. It also prevents dripping and arm. It comes in a squeezable tube with dimensions of 2 x 2 x 11 25 inches so that one can caulk surfaces easily.

Similar to weatherstripping caulk strips are pre shaped rolls of sealant that have a peel and stick. Fill larger gaps with foam. Measure the size of the gap that needs to be filled. Fill and smooth the joint.

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

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. Once the backer rod is set in place you can then caulk the gap as you normally would. Most caulk can be scraped away with a putty knife and sharp.

To remedy this issue i installed backer rod in the gap that i then covered with concrete crack sealant. The dap concrete caulk comprises of high quality silicone rubber which offers efficient results and durability.