The key to building a floor that lasts lies between the structure of the floor and the bed of tiles on top.
Kerdi floor installation on slab.
Contents 4 6 schluter kerdi waterproofing membrane 8 schluter kerdi board waterproof building panel 10 schluter ditra heat shower application 12 curbless showers 16 schluter kerdi waterproofing membrane and schluter kerdi board waterproof building panel 18 schluter kerdi ds waterproofing membrane 20 bathtub surround assembly 22 walls and ceilings 23 schluter kerdi board sn shower.
Since i have an existing cement slab what if anything do i put over it before i start building the mortar bed shower pan.
The schluter kerdi shower kit contains all the co.
If the slab is.
I have read about cold joints and didn t think i should just begin laying the mortar bed on cement slab.
When it s dried use the same thinset ditra set to set the kerdi membrane the orange membrane on the foam subfloor and also the drywall.
As long as a concrete slab is very flat and contains no cracks tile can be installed directly on top using thinset as the adhesive allowing you to skip the backer board layer.
Yet this application does make sense since concrete is heavy solid and is typically thought of as an unbending uncompromising material.
Wood substrate thin slab lightweight or gypsum concrete concrete substrate structural concrete slab waterproofing 13 floors interior ceramic or stone tile access floor panels 12 floors interior ceramic or porcelain tile installation 18 schluter ditra installation instructions.
Installing tile directly on concrete.
Ceramic and porcelain tile are so frequently installed at or above grade level on a cement board underlayment or directly on plywood that it almost seems novel to install tile directly on concrete.
The kerdi install video shows laying plastic then metal lath stapled to a plywood floor.