Installation Guide

5
Tile
Tile adhesiv
Tile adhesiv
Primer
Previous surface
(o.g. wood or tiles)
DURABASE
CI++
Screed
Application areas
Cracks in the suboor
When renovating older oors, cracks can be present in the
suboor, making it impossible to install a safely watertight
new tiled surface.
Damp from the suboor
When laying onto anhydrite screed, residual moisture from
the screed itself can collect under the tiles and cause damage
to the adhesive layer.
Stresses in the suboor
In the underlying structures below the ooring it is possible
for stresses to occur, depending on the structural design and
the types of materials employed. These stresses can be trans-
ferred to the tiled surface, leading to the formation of cracks.
Properties
Used in conjunction with tiles, the DURABASE CI++ decou-
pling mat functions as a stress-reducing intermediate layer,
bridges any cracks and has a waterproong function.
It also facilitates compensation for water vapour pressure
if residual moisture is present. DURABASE CI++ decouples
the ooring from the foundations. Any small cracks can also
be bridged so that they do not affect the tiled surface.
This makes it ideal for renovation work. With DURABASE CI++,
tiles can be laid over screed as soon as it is possible to walk
on the screed without causing damage (residual humidity
approx. 4 %). Calcium sulphate screeds, which are sensitive
to humidity, are protected at the surface from the ingress
of further moisture. For large format tiles, DURABASE CI++
provides additional protection against stress cracks.
Installation
Bond the DURABASE CI++ mat (with the eece fabric face
down) to the subsurface using exible tile adhesive (serrated
trowel 4 mm). Cover the mat junctions with sealing tape. Then
press the exible tile adhesive through the mesh fabric across
the entire surface of the depressions, then apply the adhesive
using the serrated trowel and lay the tiles onto the CI++ mat.
Please refer to the installation instructions at www.dural.com.
Shearforce optimisation
Shearforces within a ooring surface usually occur due
to differing shear stresses between the subsurface and
the tiling. With rigid, shear-resistant tiling, shearforces
can cause unsightly cracks to form in the tiled surface.
If a DURABASE CI++ decoupling mat is used as a stress-
absorbing intermediate layer, the special three-layer
structure of the mat absorbs the damaging
shearforces so that the tiling remains
permanently crack-free.
Triple-layer construction
n Webbedspecialpolypropylenebackingeece=
Highereecestabilityforbetterbondingwiththe
installation subsurface
n Optimiseddimplegeometry=
Lower adhesive consumption
n Coextrudedmeshfabric=
Optimal tensile adhesion strength
Special
polypropyleneeece
for improved
subsurface adhesion
✔