Ditra Over Hardwood Flooring

The subfloor is 3 4 x 7 tongue and groove plank with some knots set on the diagonal.

Ditra over hardwood flooring.

I m ready to start tiling in an old house 3 4 subloor with 1 1 2 x 3 4 oak flooring. The ditra heat floor heating system is designed for use under tile and stone flooring only. Now someone told me i can t put ditra over hardwood. The floor slopes down to one corner by 3 4 over 3 feet you can see this in the shower picture.

Underneath is a 3 4 maybe 1 plywood subfloor over the top of the original subfloor. The combination of tiles and grout would break up over time with a flexible underlay. They are both structurally in good shape. Therefore denser more solid materials like schluter ditra xl s rubber underlay are the best choice for providing a solid foundation to keep the floor protected.

The 3 4 hardwood is on top of 7 8 tungue and groove plank flooring. I plan to use the thinner ditra uncoupling membrane. We don t recommend or warranty ditra or ditra xl installation over existing hardwood flooring as it is very unstable and difficult to bond to making it a poor substrate for tile. Please give us a call so we can discuss your options and get you the best system for your application.

The floor was a cheap glue down laminate tile that i pulled up. Unlike hardwood floors where a bit of flexibility is desired tile surfaces need rigidity. However we have a number of other products that can be used under lvt. In spots the last install used leveling compound some of this broke and pulled up with the tiles.

Ditra xl is 5 16 7 mm thick to create an even transition between typical 5 16 7 mm thick tile and 3 4 19 mm thick hardwood flooring ditra xl allows for ceramic tile application over single layer plywood osb subfloors on joists spaced at 24 610 mm o c. I have not contacted schluter yet. First time floor diy i would like to install porcelain stone or thin brick on my 1955 kitchen and hall floor. Everything thing is solid screwed thru the floor to the joists and sanded clean.

Minimizes total thickness of the installed floor and this reduces the transition to flooring that is lower such as vinyl carpet or engineered wood. We recommend removal of the finished hardwood flooring and then following the applicable ditra handbook detail.