Mortar Bed For Tile
19 mm thick on horizontal applications.
Mortar bed for tile. Visual inspection is simply fully embedding the tile into the bed of thinset mortar then removing it and looking at both the substrate and the back of the tile to determine whether you have proper coverage. Tile installers create a medium bed of mortar by blending water cement coarse sand and other aggregate then applying it to the subfloor in a layer measuring 1 2 inch or greater. Thinset tile mortar has a smooth slippery consistency similar to mud. Thinset is a mortar that is made of portland cement silica sand and moisture retaining agents.
After the mortar bed cures generally overnight tile can be bonded to the mortar bed. After 24 hours the mortar bed enters a green state and should not have tile adhered to it for 28 days. Tiling should begin within approximately 16 hours of the mortar bed installation. The mortar bed may be reinforced with wire and either set over a cleavage membrane that allows the mortar bed to float free of the substrate or bonded to the substrate.
Some thin sets are fortified with latex polymeric or acrylic to increase the adhesive properties and flexibility. A floating mortar bed is not physically attached to the substrate and rests upon a cleavage membrane or slip sheet. In addition to acting as a mortar the cement based concrete can also be used as a grout to fill the joints between the pieces of individual material. Versabond lft fortified medium bed mortar is a general versabond lft fortified medium bed mortar is a general purpose economical polymer modified medium bed mortar for use with large format porcelain ceramic and natural stone tile.
This tile was pushed down only about halfway into the bed of thinset. With a non slumping formula to eliminate lippage versabond lft can be applied to 3 4 in. It is applied to the substrate with a notched trowel. Notice the 1 2 square notched bed on the left side has the most.
Hence the use of the terms floating. A mortar bed is. Thinset tile mortar. Mortar is the binding element for many installations ranging from ceramic tile to natural stones bricks and concrete blocks.
The tile is adhered to the mortar bed either while the mortar bed is green just beginning to dry or after the mortar bed has cured. Thinset mortar is your default tile mortar for most indoor and outdoor applications. Concrete mortar is one of the most durable building materials known to man. Thin bed methods utilize a thin set mortar cement to adhere tile to a substrate like concrete mortar bed plywood etc.
A cleavage membrane is a special film that separates the mortar bed from the substrate and prevents any shifting or cracking of the substrate from affecting the integrity of the mortar bed or the tile.