All it takes is backer rod and concrete flex sealant.
Seal concrete floor wall joint.
When building the basement the separate installation of basement floor and walls creates a small joint between the surfaces.
Using concrete joint sealant to seal concrete expansion joints and concrete contraction joints in concrete floors and concrete walls is an important part of maintaining the integrity of the concrete.
You can seal these joints but you must ensure that the seal does.
This joint where your basement wall and floor meet is known as a cove joint.
It exists due to the way that a home s foundation is poured.
After the walls have cured the basement floor is poured leaving a similar tiny gap known as the cove joint between the cured walls and newly poured floor.
Occasionally as the concrete settles the joint may widen causing leaks or serving as an entrance for insect infestations.
What is a cove joint.
Learn why not and the best options for keeping water out of the cove joint by reading below.
Unfortunately you can t just seal the gap between your basement floor and wall to fix it.
Even so the new concrete does not bond with the already cured footings so a tiny gap exists between the two.
How to seal and fix a gap between foundation and concrete sidewalk or patio.