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blackarrow199018 Apr 2021 15:38Hello,
we are planning to build with Ytong, and a key aspect is the possibility of fixing brick slips or veneer bricks. I haven’t found any standard detail from Ytong, only the construction method for a traditional brick wall (Ytong + insulation + brick). Does anyone have experience with such a construction?
I don’t think directly fixing the brick slips to Ytong is practical. Ytong is definitely a porous material and needs to be well protected from the outside. Perhaps at least with an external render or even an external thermal insulation composite system (ETICS / EIFS). Two concerns worry me:
1. The brick slips are fixed with adhesive. How well does the adhesive hold up under varying temperatures and weather conditions? How durable are they overall?
2. Possible issues with mold growth, since instead of just Ytong 36.5 cm (14.4 inches), multiple layers would be required. Will the combination Ytong + ETICS + brick slips work?
3. Would the option of Ytong 36.5 cm (14.4 inches) + external render + brick slips be feasible?
Thank you.
we are planning to build with Ytong, and a key aspect is the possibility of fixing brick slips or veneer bricks. I haven’t found any standard detail from Ytong, only the construction method for a traditional brick wall (Ytong + insulation + brick). Does anyone have experience with such a construction?
I don’t think directly fixing the brick slips to Ytong is practical. Ytong is definitely a porous material and needs to be well protected from the outside. Perhaps at least with an external render or even an external thermal insulation composite system (ETICS / EIFS). Two concerns worry me:
1. The brick slips are fixed with adhesive. How well does the adhesive hold up under varying temperatures and weather conditions? How durable are they overall?
2. Possible issues with mold growth, since instead of just Ytong 36.5 cm (14.4 inches), multiple layers would be required. Will the combination Ytong + ETICS + brick slips work?
3. Would the option of Ytong 36.5 cm (14.4 inches) + external render + brick slips be feasible?
Thank you.
blackarrow1990 schrieb:
We are planning to build with Ytong. Why a) did you decide on aerated concrete, and b) the classic 11ant Steinemantra question: which material does your contractor have the most experience with?
blackarrow1990 schrieb:
I don’t think directly attaching facing bricks to Ytong is reasonable. Ytong is definitely a porous material and needs to be well protected from the outside. That’s what you want to achieve with the facing bricks – in my opinion, perfectly practical.
blackarrow1990 schrieb:
Maybe at least exterior plaster or even ETICS. Two things worry me:
1. The facing bricks are attached with adhesive. How well does the adhesive hold up with varying temperatures / weather conditions? How durable is it overall? ETICS (external thermal insulation composite system) is not a protective layer and excludes facing bricks. The adhesive is designed, approved, and suitable for this application.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
11ant schrieb:
Why a. did you decide on aerated concrete, and b. of course the classic 11ant brick mantra question: which material is your builder most experienced with?
You want to achieve that with the brick slips – in my opinion perfectly practical.
ETICS is not a protective layer and excludes brick slips. The adhesive is made, approved, and suitable for this application.The key question misses the point.
A brick slip does not provide waterproofing any more than a tile in a walk-in shower. That is the job of the underlying render.
ETICS is a protective layer, otherwise what purpose does the render in ETICS serve? ETICS does not exclude brick slips at all.
blackarrow1990 schrieb:
1. The brick slip is fixed with adhesive. How well does the adhesive hold up under varying temperatures/weather conditions? How durable is it overall?The adhesive is made and approved for this purpose.
blackarrow1990 schrieb:
2. Possible issues with mold formation, since instead of just Ytong 36.5cm (14.4 inches), multiple layers are required. Will the formula Ytong + ETICS + brick slips work?Mold is prevented through ventilation. The wall construction is almost irrelevant in this regard.
ETICS on a monolithic wall becomes thick and unnecessarily expensive.
If you combine Ytong with ETICS, which is fairly common in practice (e.g., Town & Country builds like this), you typically end up with about 16cm (6.3 inches) masonry combined with 12–14cm (5–5.5 inches) insulation. This results in very thin but well-insulating wall assemblies, but with noticeably less mass and therefore poorer sound insulation.
However, you do not need to do this for the brick slips.
blackarrow1990 schrieb:
3. Would the option with Ytong 36.5cm (14.4 inches) + exterior render + brick slips be possible?In my opinion, that is exactly how it is done, or just a base coat render underneath and then the brick slips on top.
guckuck2 schrieb:
The crucial question misses the point. It never does – who would knowingly choose a wall structure that is new territory for their contractor?
guckuck2 schrieb:
ETICS is a protective layer, or what else is the render in ETICS good for? ETICS does not exclude facing bricks at all. Now I have to ask you slowly—are you a butcher? :-)
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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