Ditra Over Hardwood Flooring

Now someone told me i can t put ditra over hardwood.

Ditra over hardwood flooring. The floor was a cheap glue down laminate tile that i pulled up. Underneath is a 3 4 maybe 1 plywood subfloor over the top of the original subfloor. They are both structurally in good shape. First time floor diy i would like to install porcelain stone or thin brick on my 1955 kitchen and hall floor.

My main concern was whether is was okay to put thinset directly on an old hardwood floor and if i should use an unmodified thinset between the hardwood and the ditra followed by modified between the ditra and tile. The floor slopes down to one corner by 3 4 over 3 feet you can see this in the shower picture. Allows you to install ceramic tile over a single layer of plywood or osb subfloors on joists with wider spacing such as 24 inches on center. The combination of tiles and grout would break up over time with a flexible underlay.

However we have a number of other products that can be used under lvt. 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. The 3 4 hardwood is on top of 7 8 tungue and groove plank flooring.

Everything thing is solid screwed thru the floor to the joists and sanded clean. Please give us a call so we can discuss your options and get you the best system for your application. The subfloor is 3 4 x 7 tongue and groove plank with some knots set on the diagonal. I have not contacted schluter yet.

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

Floor joists are 1 75 x 9 16 oc longest support span is about 12 feet. In spots the last install used leveling compound some of this broke and pulled up with the tiles.