There are certain materials that are not proper laminate flooring sub-floors. The sub-floor materials NOT suitable for laminate flooring:
If you have one of these types of flooring, you must remove it before installing your laminate. The appropriate types of laminate flooring sub-floor include:
Once any wood-based product has been acclimatized to a home, it usually has a stable moisture content. With that said, you should take a moisture reading before installing your flooring to make sure it is acceptable.
14% is the highest moisture reading acceptable for wood subfloors.
If your home is closed without ventilation, you could see your interior humidity level rise substantially. When this happens, your flooring will expand. Ventilating your home or running the HVAC system is highly recommended.
You’ll also want to make sure that your subfloor is up to building code requirements. Here are some of the most common requirements to test for:
High areas, such as joints with peaks in the sub-floor or any other ridges should be leveled. You can do this using a sander or by using a cement and latex leveling compound. Always let the compound dry completely before beginning any kind of installation.
With a wood sub-floor, you can install your laminate flooring directly over parquet, planks, or other type of wood flooring.