ᐅ Concrete blocks behind external thermal insulation composite systems (ETICS), block type or joint masonry, costs

Tatze schrieb:
Hello Behaim, 🙂

we are also considering building with insulated bricks. Could you tell me exactly why you were advised against using these bricks?

Thanks and regards

Tatze

Well, then we're back to the discussion about what might be smarter: an external thermal insulation composite system (ETICS), insulated bricks, or a monolithic thick masonry.

I prefer ETICS because it allows me to cover all potential weak points and avoid any thermal bridges. This was the main argument from various contractors and also architects, besides the price. Roller shutter boxes, connection points, wall offsets, etc. With ETICS, I can easily cover all of that, whereas with insulated bricks, you have to be extremely meticulous to ensure everything is done correctly and no weak spots remain. For me, aside from the cost, it was just too uncertain. The argument about the dew point being located inside the wall with these bricks, while with ETICS it would be within the insulation and the entire wall mass staying on the warm side, was also important to me.

As I said, it seems to be a matter of belief, but I’m not someone who demonizes ETICS—in fact, quite the opposite. I also have several older buildings in my neighborhood that have used it, and none have had problems so far. Insulated bricks felt too risky for me, even though, admittedly, they were very tempting. Again: it’s a matter of belief, but for my situation I tend to go more for 30cm (12 inches) Liapor Super-K-Plus plus 14cm (5.5 inches) ETICS.

Hello Tatze,

High density and a lot of mass in the masonry wall to the neighbor provide the necessary/desired sound insulation and, of course, fire protection.

Best regards, Norbert