Blosam uncoupling membrane is specifically designed to allow the
installation of ceramic and stone tile over any even and
load-bearing substrate and an underlayment for ceramic and stone
tile.
This plastic membrane system geometrically configured to provide
air space between the tile and the substrate to allow independent
movement between the two and limit the transfer of the stresses."
BLOSAM UM**3 is a polyethylene membrane with a grid structure of
square cavities, each cut back in a dovetail configuration, and an
anchoring fleece laminated to the underside. The anchoring fleece
is embedded in thin-set mortar to provide a mechanical bond to the
substrate. Tile is installed over UM**3 using the thin-bed method
in such a way that the mortar becomes mechanically anchored in the
square, cutback cavities of the matting. Designed specifically for
ceramic tile and dimension stone installations, UM**3 serves as an
uncoupling layer, waterproofing membrane, and vapor management
layer that accommodates moisture from beneath the tile covering.
Further, UM**3 performs all these functions while still providing
adequate support/load distribution for the tile covering. The
combination of these four essential functions allows for the
successful installation of tile over a wide range of substrates,
including plywood/ OSB, concrete, gypsum, heated floors, etc..
The integration of this uncoupling, waterproofing,
load-distribution, and vapor management functions makes consistent
results viable.