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How do I attach facade tiles to synthetic resin plaster?

Asked 6 months ago.
Active 6 months ago.
Viewed 549 times.
  • etics
  • stucco facade
0

I'm planning on covering part of the exterior façade with tile.

Unfortunately, I have some concerns about tile adhesion since the plaster on top is synthetic resin based plaster (plaster grain size 1.5 mm).

According to my information obtained after talking to a tiler, no adhesive will hold properly on this plaster.

The alternatives suggested to me so far have been as follows:

1) The plaster and insulation should go down where the tiles are glued. Then pre-treat with a two-part adhesive and work with a quick-setting tile adhesive.

2) Screw the wedges to the wall and glue the tiles on top.

In total, a cohesive tile pattern takes up about 30 square meters and goes either lengthwise (about 2 x 17 m) or heightwise (7 x 5 m).

I would prefer that the tiles can be glued directly to the façade or that they appear to be glued directly to the façade.

I assume that alternative 1) (see above) would not be possible.

Here is the façade description I received from the architect:

ETICS for a facade consisting of a mineral wool insulation board, lambda 0.034 E/mK, adhesive mortar and reinforced organic base coat, nominal layer thickness 5 mm, intermediate layer (primer) and top layer of synthetic resin plaster, 1.5 mm plaster grain size, painted through scratch.

ETICS insulation board: 20.0 cm.

Material: STO THERM MINERAL

asked 6 months ago
Author avatar
11Noorudean
Author avatar
Why shouldn't anything stick to synthetic resin stucco? Weber has a special adhesive and reinforcing mortar for repairs. So, in principle, something should stick to synthetic resin plaster as well. 
– BrightMason  6 months ago

Answer

1

Dowel, clean, reinforce, glue with Ardex X90 and epoxy. Then it should work :)

answered 6 months ago
Author avatar
171Yae Geon
Author avatar
How often? What do you need to consider when using dowels? Cleaning with Kärcher? What kind of reinforcement?
– Noorudean  6 months ago
Ducking the current façade is only necessary because you want to add another coating. More weight... You can find out the specifications from the manufacturer of the dowels used. There is information about the number of dowels per m², etc.. Then clean the surface with Kärcher. And to create a fairly even surface/contact layer, I would put/strengthen a cloth in there. 
– Yae Geon  6 months ago
+2
I would say the same thing. Basically like double insulation in a remodel. Dowel in and put a new layer of rebar. Ask the plaster system manufacturer what they will be applying as the next layer.
– Sahng Byung-ho  6 months ago
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