Isolated to first floor isolated to second floor both floors.
Second story floor sagging.
Again this could be a sign of dry rotted second floor joists.
There are several problems that can cause a sagging or sloping floor which is one of the reasons why fixing a sloping floor is difficult.
Termites can rot or damage the joists typically made of wood rendering the pieces unable to hold up the floor.
The first and second floors in our house seem overly bouncy and sag toward the middle.
Sagging floors are often the symptoms of structural damage to the floor joists below the surface.
Common reasons for sloping or sagging second story floors.
The average hourly cost for floor repairs is between 75 and 125 for the labor alone.
On the top side of the floor another fix it idea to lay down new hardwood over the existing floor.
Although most floors slope it is important to know how much and why.
Water damaged or structurally damaged first floor joists causing the joists to deflect or sag.
You will have to make sure your joists can handle the addition of considerably more weight from the plywood subfloor and any floor coverings.
Thre ways to fix a sagging or sloping floor.
Foundation issues deteriorating wood supports especially sills which rest on the foundation footer improperly installed joists or sub floors and other issues can all cause a floor to slope or sag.
Sloping to one direction.
This could be a sign of serious structural damage due to foundation settlement.
How can we evaluate whether the floors need reinforcement and if so what is the best way to do this.
Sloping floors on the first floor of a multi story house could be a sign of missing support posts and damaged joists.
To prevent the collapse of your second story or injury from falling through a rotten floor you must repair the joists as soon as possible.
As the posts naturally deteriorate and sink into the floor the house settles accordingly bottom to top.
If a load bearing wall is removed on the first floor then the second story floor joist or trusses may drop down in the area where the load bearing wall was removed.
If the floor is sagging visibly in the middle or is very bouncy you may want to reinforce the floor to eliminate the sag and reduce the bounciness.
Be suspicious of wood posts set on dirt floors or wood posts with concrete poured around the post bases jordan says.
A plywood subfloor will bridge any minor waves in the existing floor and leveling compound would help too.
On average nationwide repairing a sagging floor costs between 1 000 and 10 000.
The average person can sense if a floor slopes 1 inch in 10 feet and sloping floors or sagging floors are often one of the warning signs that structural engineers look for when analyzing a house.