The bowing that occurs is actually the plywood shrinking.
How to fix warped plywood floor.
Using warped planks in framing a home or in a sub floor may result in problems as floors and walls begin to buckle.
Plan the layout of the plywood sheets so the long dimension of the plywood runs perpendicular to the floor joists.
Wrap your warped wood in two large moist towels and make sure the warped parts are properly covered.
Wood warps from exposure to moisture which curves plywood or boards for sub flooring or framing a home.
The problem in this case is the weight of the books or other things which are placed on the shelves.
Set your iron to the highest temperature and let it heat properly for about 2 6.
Plywood pieces can warp if they have been improperly stored or exposed to moisture.
Over the course of time this will lead to warping.
Wood floors usually become warped because of water damage although too much sunlight can also cause boards to warp.
Keep in mind that this will require an aggressive amount of sanding in most instances.
Most often a warped wood floor is caused by standing water or heavy moisture below the floor due to an unidentified leak or other hidden water source.
A new layer of 5 8 inch or 3 4 inch tongue and groove plywood subflooring is like adding a new subfloor over the old to create a stiffer flatter surface for any type of finished flooring.
The first method to fix a warped floor is to sand it.
Another common use for plywood where it has a high tendency to warp is for shelves.
Sometimes even a nearby water source like flooding underneath the house can cause enough of a moisture imbalance to result in warping.
As humidity or moisture from rain water falls onto the wood the lumber absorbs the liquid causing it to expand and bend.
Now keep your wrapped wood on a flat surface that also will be able to bear the temperature of your iron.
This process will take several hours but once it is finished the plywood will be rejuvenated and ready to use for your project.
The concave part needs to face downwards.
Water causes the wood to expand and shrink.
Many floor boards that are warped will need to be removed and replaced.
You can flatten them again with hot water and a warm environment.
How to fix warped plywood shelves.