Waterproofing should form a barrier against the bonding of the tile bed to the structure. This is to be expected as the waterproofing is intended to contain moisture and to prevent moisture transmission into the structure.Therefore tiling on top of waterproofing treatments have the advantage of separating the tiling from direct movement stresses of the structure. Sheet membrane waterproofing, being separate from the structure creates a much better structural separation.It should always be remembered that natural stone and ceramic tiles have different rates of expansion from the structure to which they are being applied and therefore the separation is an advantage and helps in overcoming the tendency to crack.
Waterproofing should form a barrier against the bonding of the tile bed to the structure. This is to be expected as the waterproofing is intended to contain moisture and to prevent moisture transmission into the structure.Therefore tiling on top of waterproofing treatments have the advantage of separating the tiling from direct movement stresses of the structure. Sheet membrane waterproofing, being separate from the structure creates a much better structural separation.It should always be remembered that natural stone and ceramic tiles have different rates of expansion from the structure to which they are being applied and therefore the separation is an advantage and helps in overcoming the tendency to crack.