A plywood subfloor will bridge any minor waves in the existing floor and leveling compound would help too.
Hardwood floor raising up.
This is usually caused by sanding a cupped floor before it has completely dried although moisture on the upper side of the floor caused by plumbing leaks or wet mopping may cause floors to crown as well.
How to repair a hump in the floor.
Thre ways to fix a sagging or sloping floor.
You need to leave a 5 16 inch gap between the flooring and the baseboard or wall around the perimeter of the room to allow the floor enough space to expand.
Hardwood floors will buckle if they are subjected to excess water.
Because soil shifts and house frames settle there is usually a slight variation in floor level.
If solid wood floors are fitted without an expansion gap problems which can sometimes be severe are likely to arise.
Engineered flooring goes down over a thin foam sheet which provides cushioning and sound dampening.
The planks glue together to create a floor that floats moves freely as a unit.
How to fix hardwood floors that are lifting.
You will have to make sure your joists can handle the addition of considerably more weight from the plywood subfloor and any floor coverings.
The persistent squeaking can be annoying and if you.
For example if a toilet overflows and the water reaches the hardwood hallway the hardwood planks swell with moisture.
Hardwood floors can lift when the nails holding them aren t secure or there aren t enough of them.
Up until recently my eng wood floors looked great with a smooth surface and sat perfectly flat and solid onto of the cement.
If you have a noticeable hump in the floor however something.
When humidity is high the wood expands.
When hardwood floors lift up at the center making this area higher than the board s edges they re crowning.
Hardwood floors need to be cleaned maintained but make sure you use as little water as possible while mopping.
Im having an issue with my engineered wood floors which were installed in my condo almost 5 years ago on top of the original cement floors which were already 20 years old.
Because the wood needs to accommodate this excess moisture it moves upward and the expansion causes it to buckle.
Depending upon the conditions it is possible to strengthen or repair existing framing members such as floor joists or roof rafters by adding reinforcing material sandwiching the member on either side with plywood is sometimes worthwhile but the plywood must be installed correctly for greatest strength.