ᐅ Insulating a New Build with 36.5 cm Aerated Concrete Blocks?

Created on: 17 Jan 2014 14:00
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bygoran
Hello

our new build starts on Monday.

I am considering insulating the 36.5cm (14.4 inches) aerated concrete wall right away while the scaffolding is still in place.

We are building without KfW funding but want to insulate as well as possible.

According to a U-value calculator, I need 200mm (8 inches) of insulation to avoid moisture problems. Is that correct?

Can someone provide more detailed information? Or calculate exactly how thick the insulation needs to be to avoid any issues.

A controlled mechanical ventilation system with heat recovery is also planned.

The last ceiling below the cold roof is made of 24cm (9.5 inches) concrete, and I plan to add 240mm (9.4 inches) mineral wool insulation with a thermal conductivity of 0.035 W/(m·K). Is that sufficient?

I would appreciate any information.
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Iktinos
6 Feb 2017 20:42
Tego12 schrieb:

Alright, I'm out, and I'll take the approach of the people in the green forum. You can't really have a discussion with someone like you; you twist and turn arguments and either can’t or won’t understand.

You probably mean the Blue Forum; that comparison is misleading.

Currently, a roofer and a master glazier are discussing the difficulties a self-employed craftsman faces to ensure both his employees and himself can pay their bills. The roofer, who is currently taking his master craftsman exam and is employed as a worker, is telling the self-employed professional what he is doing wrong. However, only one user, who you apparently respect, is supporting the glazier. Why? Probably because the roofer administers the forum, although the glazier’s arguments speak for themselves. So much for the claim that the members of the Blue Forum are right to call Grym a troll.
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Ickes
6 Feb 2017 20:59
Quick side question – how much more does clinker brick cost compared to plastering and painting?

Thanks to the excellent discussion here, I would now like to switch from 24cm (9.5 inches) plus external wall insulation system (EWIS) to a 36cm (14 inches) solid wall (monolithic) construction (just spoke with the architect, who actually wanted this from the start...).

Thank you
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Nordlys
6 Feb 2017 21:03
For us, it is a bungalow measuring 13.5 by 10 meters (44 by 33 feet). The net price is 130,000 (plastered, monolithic) and 141,000 (brick-veneer, double-wall). Both prices exclude tax. Prices are from October 2016.
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Ickes
6 Feb 2017 21:04
Nordlys, is that the price per square meter?
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Nordlys
6 Feb 2017 21:07
No. 130,000 to 141,000. Net price for the entire house with colored plaster. The brickwork is just a red brick.
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Ickes
6 Feb 2017 21:09
Nordlys schrieb:
No. 130,000 to 141,000. Net price for the whole house with colored plaster. The brickwork is just a red brick.

Ah, ok. Thanks. I think that’s quite a significant price difference.