Ceramic Tile Uncoupling Membrane

The uncoupling membrane does just what it sounds like.

Ceramic tile uncoupling membrane.

Ditra is a polyethylene uncoupling underlayment with a grid ditra is an uncoupling membrane designed for ceramic and stone tile installations on floors. It is made of polyethylene creating a waterproofing layer protecting the substrate. It is made of polyethylene creating a waterproofing layer protecting the substrate. It is still common practice today to install ceramic and stone tiles by direct bonding to the substrate with backer boards.

They can also offer waterproofing and channels for evaporation or heat exchange. Uncoupling membranes absorb any substrate movement and eliminate the transfer of that stress to the tile layer which helps to prevent loose or cracked tiles. The powers that be in the tile industry want uncoupling membranes to be their own classification separate from the cis membranes. Many of the uncoupling membranes available today recommend the use of an ansi a118 1 non modified thin set mortar to bond the ceramic or stone tile to the plastic surface of the membrane.

Ditra can be installed over a variety of subfloors including concrete plywood osb and radiant heated floors. But the fact is that they haven t been officially tested as crack isolation membranes. It provides uncoupling to prevent cracked tile and grout. So this means that they will have their own tests.

Uncoupling membranes seem like they would prevent cracks also. Ditra is an uncoupling membrane designed for ceramic and stone tile installations on floors.