Moisture barrier is an essential part of laminate flooring installation, particularly when it is laid over concrete. Concrete floors are known for their ability to store a large amount of water, and this can lead to various problems for laminate flooring. The purpose of a moisture barrier is to prevent the transmission of humidity from the concrete floor to the laminate flooring. This will help to protect the flooring from moisture damage and increase its lifespan.
There are several reasons why a moisture barrier is required for laminate flooring installed over concrete. Firstly, concrete has a high porosity, which means it can absorb a lot of moisture. When laminate flooring is laid directly on concrete, it is exposed to the moisture that the concrete has absorbed. This moisture can penetrate the laminate flooring, causing it to warp, buckle, or even delaminate.
Another reason why a moisture barrier is crucial is that concrete floors can also act as a conduit for soil moisture. The soil beneath the concrete floor can transmit humidity into the floor, which can cause problems for laminate flooring. The moisture barrier acts as a barrier, preventing the humidity from passing through to the laminate flooring.
Installing a moisture barrier over all concrete surfaces is mandatory for a successful installation and for the ongoing life of your laminate floor. There are several options for moisture barriers, including polyethylene plastic sheets, polyethylene foam, or specialised moisture barrier membranes. These moisture barriers should be installed over all concrete surfaces before the laminate flooring is laid. This will ensure that the laminate flooring is protected from moisture damage, and that it remains in good condition for many years to come.
In conclusion, the use of a moisture barrier is essential when laying laminate flooring over concrete. Moisture barriers help to protect the flooring from moisture damage by preventing humidity from the concrete floor from penetrating the laminate flooring. They also prevent soil moisture from transmitting into the floor. Installing a moisture barrier is mandatory for a successful installation and for the ongoing life of your laminate flooring, so make sure you choose the right one for your needs.