Hello,
we are planning to build soon. Since we are constructing a KfW 70 house with 30 cm (12 inches) Ytong exterior blocks and therefore will not add any insulation to the facade, my question is whether I can lay the brick veneer directly onto the Ytong or if I need to leave a 1-2 cm (0.4-0.8 inches) gap?
My concern is that if I use brick slips, they are glued directly to the Ytong, but standard 11.5 cm (4.5 inches) brick units are usually laid with a certain gap. Unfortunately, I only find this advice when insulation is involved, which I do not want, as I have read a lot of negative things about that, like mold, moisture, etc.
So should the brick be glued directly to the Ytong or installed with a gap?
I hope someone can help me!
we are planning to build soon. Since we are constructing a KfW 70 house with 30 cm (12 inches) Ytong exterior blocks and therefore will not add any insulation to the facade, my question is whether I can lay the brick veneer directly onto the Ytong or if I need to leave a 1-2 cm (0.4-0.8 inches) gap?
My concern is that if I use brick slips, they are glued directly to the Ytong, but standard 11.5 cm (4.5 inches) brick units are usually laid with a certain gap. Unfortunately, I only find this advice when insulation is involved, which I do not want, as I have read a lot of negative things about that, like mold, moisture, etc.
So should the brick be glued directly to the Ytong or installed with a gap?
I hope someone can help me!
B
Bauexperte20 Apr 2014 11:53Hello,
Therefore, you should clarify these parameters first before considering the issue of facing bricks.
Best regards from the Rhineland during the Easter season
baschti schrieb:Achieving KfW 70 standard with 30cm (12 inches) blocks is hardly feasible; unless you are building in a very sunny climate.
we are planning to build soon. Since we are constructing a KfW 70 house with 30cm (12 inches) Ytong exterior blocks and therefore will not add any insulation to the facade ...
Therefore, you should clarify these parameters first before considering the issue of facing bricks.
Best regards from the Rhineland during the Easter season
We are building a bungalow 108 with Town & Country, including underfloor heating, 40cm (16 inches) roof insulation, triple-glazed windows, and all the usual features. The consultant told us that instead of a 24cm (9.5 inches) Ytong wall with insulation, he would recommend a 30cm (12 inches) wall without insulation. This way, they said, meeting the KfW 70 standard would be no problem... so, were they lying to us? Because I keep reading about 36.5cm (14 inches) blocks... or is it due to the thick roof insulation combined with the underfloor heating and thick floor slab? Town & Country would be shooting themselves in the foot if they were lying to us here...
B
Bauexperte20 Apr 2014 13:43Hello,
I recommend searching the web for construction diaries from this provider; that will surely help clarify the facts.
With Easter greetings from the Rhineland
baschti schrieb:What exactly should I imagine by that?
40cm (16 inches) roof insulation
baschti schrieb:How thick is this engineering marvel supposed to be?
... and thick foundation slab.
I recommend searching the web for construction diaries from this provider; that will surely help clarify the facts.
With Easter greetings from the Rhineland
I was mistaken, sorry, the roof insulation is only 24cm (9.5 inches)...
Unfortunately, I can only find information about the concrete slab, such as concrete grade C25/30.
Then there is the floor with approximately 85mm (3.3 inches) insulation (rigid polystyrene foam, thermal conductivity 0.035 W/mK) and about 45mm (1.8 inches) cement screed.
Unfortunately, I can only find information about the concrete slab, such as concrete grade C25/30.
Then there is the floor with approximately 85mm (3.3 inches) insulation (rigid polystyrene foam, thermal conductivity 0.035 W/mK) and about 45mm (1.8 inches) cement screed.
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