Do You Put Vapor Barrier Under Tile Flooring

Since you re on a pier and beam subfloor it would be in your best interest to have a vapor barrier due to moisture being a potential risk under the subfloor.

Do you put vapor barrier under tile flooring.

Actually you may not even need underlayment depending on the product and where you plan to install it. No vapor barrier required but clean the cement floor and seal it. If you have an older home that may not have moisture barrier protection under the concrete slab you can still add a barrier to protect your vinyl floor from bubbling. You could do a vinyl underlayment that includes a vapor barrier or simply use a vapor block film.

If not level use thin set to level out. Avoid harsh detergents as they will yellow your tile and follow manufacturer s directions on cleaning. Before rolling out the underlayment be sure to sweep vacuum and remove all debris on the substructure. Vapor 3 in 1 moisture underlayment.

This has to be done annually. Installing new flooring is a costly enterprise so you want to get it right the first time around. If you have no cracks anywhere on the slab you are probably okay. How to install vapor barrier on concrete floor under laminate flooring.

After working the flooring mfr and your great feedback i have heavily recommended to our client to have the water issue mitigated and that installing a vapor barrier under the flooring material is in consequential and may exasperate the build up of moisture under the sub floor. A vapor barrier can be applied or installed over the tile substrate using a liquid or sheet membrane. Ditra functions as a floating substrate. If your slab should happen to contract or expand as the house settles by as little as 1 32 you may have broken grout lines or cracked tiles.

Thanks all for the replies. Don t forget to seal your grout and tiles if directed by the manufacturer. If you ve chosen to go the vinyl path you re probably wondering about the best underlayment for vinyl plank flooring. There are many products available in home centers and hardware stores in liquid form that can be used to cover and protect the concrete slab from the top.

Vapor barrier 3 in 1 underlayment is perfect for installation under laminate flooring to allow your floor to float and give a moisture barrier. The ditra will allow the slab to expand while the tile surface remains static. Hi cecily thanks for the question. Always read the flooring manufacturers recommendations and instructions before installing the underlayment.