Ditra Over Hardwood Flooring

Underneath is a 3 4 maybe 1 plywood subfloor over the top of the original subfloor.

Ditra over hardwood flooring.

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. The ditra heat floor heating system is designed for use under tile and stone flooring only. I m ready to start tiling in an old house 3 4 subloor with 1 1 2 x 3 4 oak flooring. I plan to use the thinner ditra uncoupling membrane.

They are both structurally in good shape. The 3 4 hardwood is on top of 7 8 tungue and groove plank flooring. The floor slopes down to one corner by 3 4 over 3 feet you can see this in the shower picture. 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.

However we have a number of other products that can be used under lvt. 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 combination of tiles and grout would break up over time with a flexible underlay.

I have not contacted schluter yet. 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. Minimizes total thickness of the installed floor and this reduces the transition to flooring that is lower such as vinyl carpet or engineered wood.

In spots the last install used leveling compound some of this broke and pulled up with the tiles. We recommend removal of the finished hardwood flooring and then following the applicable ditra handbook detail. Everything thing is solid screwed thru the floor to the joists and sanded clean. 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.

Please give us a call so we can discuss your options and get you the best system for your application. Floor joists are 1 75 x 9 16 oc longest support span is about 12 feet.