ᐅ KfW 55, Ytong 36.5 poorly bonded, too many gaps?

Created on: 8 Dec 2016 21:03
O
Olaf Mayer
Hello,

we are currently at the shell construction stage of our KFW 55 bungalow.

Since the sun was shining at a favorable angle today, we noticed several gaps in the masonry. In some areas, the sunlight shines completely through.

We then inspected the joints more closely. Hardly any joint is properly sealed. We can almost everywhere insert the blade of a pocket knife 2-4 cm (1-1.5 inches) deep.

The site manager’s comment was, "the plaster will take care of sealing that"—2 cm (0.8 inches) on the outside and 1 cm (0.4 inches) on the inside.

We deliberately chose a 36.5 cm (14.4 inches) thick block with a lambda value of 0.09. Am I correct in understanding that if the blocks are not fully bonded, the insulation value will significantly decrease? The blocks are not properly connected... neither horizontally nor vertically.

Best regards
Olaf Mayer

Person malt mit Farbroller eine rote Linie auf eine helle Außenwand


Innenraum-Eckbereich aus weißen Großformat-Betonblöcken; Spalt lässt Licht durch.


Rohbauwand aus weißen Betonblöcken in einer Ecke eines unfertigen Raums mit dunklem Boden
11ant25 Sep 2020 17:25
sascha-t4-le schrieb:

One consolation remains for us: it will be plastered and smoothened.

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