What Causes Bouncy Floors

The basement is finished and i don t want to tear out the dry walled ceiling.

What causes bouncy floors.

Bouncy floors are one of the most vexing problems faced in houses both new and old. In almost all cases the floor can be fixed so that it is solid and does not bounce. A springy or spongy feeling could indicate a minor issue a major problem or. Stiffening bouncy floor with plywood.

The floor may be structurally sound and built within code limits. Finally stand near the beam. Would screwing another sheet of plywood stiffen it up. The tiptoe drop should cause the biggest bounce here.

In some cases it s purely an economical issue. To lift a sagging floor you must hire a. Whomever designed the floor framing system when the addition or home was built may have stretched the spans and spacing of the support to it s limits to save money. How to fix springy and spongy floors.

Floors that bounce up and down when you walk across them are annoying. Even solid steel i beams can have flex. Any bounce you can cause here should be small similar to what you felt along the exterior wall. No one likes the feel of a supposedly solid floor bouncing or sagging underfoot.

The area in particular is in the center of the room between the fridge and the dishwasher. The method or methods tom chooses depend as much on practicality as on effectiveness. Spongy and bouncy floors generally are of little concern unless the cause relates to a serious structural issue. As homeowners we quickly get used to a floor that has a little bouncy or spring to it as we walk across it and seldom give any thought to whether there is a problem.

If the result is more like what you felt in the middle of the floor the beam below is either undersized or not supported sufficiently by posts. There are a variety of ways to stiffen a floor. Bouncy floors can be a sign of structural problems but most bouncy floors can be stiffened to the point that the bounce is no longer a problem. The cause of bounce is traced to the normal flex that is part of wood floor joists.

I have a kitchen floor that bounces whenever we walk on it. Even structurally sound code compliant new floors can deflect or flex more than feels comfortable. It s all very complex with wood because the amount of flex varies depending upon the species of wood and the grade of the actual pieces of lumber. Tom s house was built in 1765 but bouncy floors aren t just an old house problem.