Seal Gap Between Concrete Floor And Wall

This gap is called a cove joint and the reason there is a gap between the wall and the floor is simply because of the way that the foundation of the home got poured.

Seal gap between concrete floor and wall.

This doesn t happen because the wall itself is leaking water or because the basement floor has low points around the edges. Sep 30 2015 by matthew stock. I am trying to figure out whether how to air seal the gap between my garage floor and drywall in my 12 year old three story townhouse in zone 2a. The door shown in the photos leads to the first floor of the house.

Mostly what kent said. One of the most common places to find water in a residential basement is in a puddle right next to the wall. I think caulk any particular kind is the answer but wanted to check first. In the short term a sealant applied along this gap between your basement floor and wall may prevent leakage.

After the concrete floor sets the board is removed a clean even gap is left between the basement wall and floor. Some areas have very expansive soil. This is a floating slab or floating floor. But if the joint is going to be buried behind other finish surfaces and the gap is 1 2 ish or bigger then squirt foam is a good choice.

You see in the early stages of building a home the basement is constructed first excavated to the desired depth. Don t seal the gap between basement wall and floor to keep out water. 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. To remedy this issue i installed backer rod in the gap that i then covered with concrete crack sealant.

The gap is generally 1 2 wide however in many places it s less. Occasionally as the concrete settles the joint may widen causing leaks or serving as an entrance for insect infestations. When building the basement the separate installation of basement floor and walls creates a small joint between the surfaces. But urethane squirt foam is subject to uv degrada.

This will hopefully be the fix that keeps that wall of the sunroom nice and dry. Why you can t just seal the gap between your basement floor and wall. However it s not that simple. You can seal these joints but you must ensure that the seal does.

When water enters the seam or crack between an asphalt driveway and a concrete garage floor or foundation it isn t a big deal in warmer climates for the most part.