Ytong and clinker slips, possibilities

Hello,

we are planning to build with Ytong and a key element is the possibility of attaching the clinker slips or facing bricks. I have not found a standard detail from Ytong, only the execution of a real clinker wall (Ytong + insulation + clinker brick). Does anyone have experience with such an execution?

I do not consider a direct attachment of the clinker slips to Ytong to be plausible. Ytong is definitely a porous material and must be well protected from the outside. Perhaps at least exterior plaster or even ETICS. Two things worry me:

1. The clinker is attached with an adhesive. How well does the adhesive hold up under different temperatures / weather conditions? How durable are they actually?
2. Possible problems with mold formation, since instead of just Ytong 36.5 cm, there now have to be several layers. Will the formula Ytong + ETICS + clinker slips work?
3. Would the variant with Ytong 36.5 + exterior plaster + clinker slips be possible?

Thank you.

Hello, we faced the same problem. We decided on 36.5 Ytong + synthetic resin exterior plaster + Isoklinker. It's not a problem. The only disadvantage is the relatively thick wall width.

we are planning to build with Ytong

Why a. your decision for aerated concrete and b. of course the 11ant stone mantra Gretchen question: what does your builder have the most experience building with?

I do not consider a direct attachment of the clinker slips to Ytong plausible. Ytong is definitely a porous material and must be well protected from the outside.

You want to take care of that with the clinker – in my opinion perfectly practical.

Maybe at least exterior plaster or even ETICS. Two things worry me:
1. The clinker is attached with an adhesive. How well does the adhesive hold up with different temperatures/weather? How durable are they at all?

ETICS is not a protective layer, and excludes slips. The adhesive is made for this application, approved and suitable.

Why a. your decision for aerated concrete and b. of course the 11ant Steinemantra Gretchen question: with what does your builder have the most experience?

You want to take care of that with the clinker - in my opinion perfectly practical.

ETICS is not a protective layer, and excludes facing bricks. The adhesive is made, approved, and suitable for this application.

The Gretchen question misses the point.

A facing brick no more provides sealing than a tile in a walk-in shower. That is done by the plaster underneath.

ETICS is a protective layer, or what else is the plaster in ETICS good for? ETICS does not exclude facing bricks at all.

1. The clinker is attached with an adhesive. How well does the adhesive hold up under different temperatures / weather conditions? How durable are they anyway?

The adhesive is made and approved for this.

2. Possible problems with mold growth, since instead of only Ytong 36.5 cm now several layers have to be used. Will the formula Ytong + ETICS + clinker facing bricks work?

Mold growth is prevented by ventilation. The wall structure is almost irrelevant in this regard.

ETICS on a monolithic wall becomes thick and unnecessarily expensive.
If you want to combine Ytong with ETICS, which is quite common in the wild (e.g., Town & Country builds like that), you end up with about ~16cm masonry and 12-14cm insulation layer. This results in very thin but well-insulating wall structures, however, they clearly lack mass and thus sound insulation.
For the facing bricks you don’t have to do that.

3. Would a variant with Ytong 36.5 + exterior plaster + facing bricks be possible?

In my opinion, that is exactly how it is done, or rather just a base plaster and then the facing bricks on top.

The crucial question misses the point.

It never does – who would knowingly want a wall structure that is uncharted territory for their builder?

EIFS is a protective layer, or what else is the plaster in EIFS good for? EIFS does not exclude facing bricks at all.

Now I really have to ask you if you are a butcher :-)

Yep, specialized in elephants.