Plywood and concrete plywood are popular wood panel materials. But like other (wood) panel materials, they can be subject to moisture and temperature fluctuations. After all, wood is a natural material that can bend when exposed to certain conditions such as humidity and temperature.
If you use plywood in humid environments, you must remember that the panel not always perfect will remain straight. The corners of the eaves on flat roofs, for example, are often prone to warping, because the boards are cut at a mitre to work out the corners. Fortunately, stabilizing suitable plywood usually recovers on its own.
The example below shows an extreme case where a zinc bead finish is used. Unlike an aluminum eave, a zinc bead is unable to keep the sheet straight.
Choose the right type of plywood: there are different types of plywood available that are suitable for different environments and applications. For example, there is waterproof plywood suitable for roof applications.
Allow the plywood to acclimate: Before using the plywood, it is wise to let it acclimate for a few days in the room where it will be installed. This will allow the wood to adapt to the humidity and temperature.
Avoid direct contact with water: plywood is water-resistant, but it is still susceptible to moisture absorption if it comes into direct contact with water. So be sure to keep the plywood dry and avoid direct contact with water.
