ᐅ The Ideal Wall Construction for a Solid (Masonry) House

Created on: 31 May 2015 11:20

Hello everyone, I finally want to build on my plot and have shortlisted four homebuilders – but I’m struggling to decide because each has their own philosophy about the ideal wall construction.

Poroton brick, insulation, plaster, plus triple glazing
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Probably a classic nowadays. The house is completely airtight. The walls cannot “breathe,” so moisture from inside the house cannot escape. A ventilation system is therefore mandatory.

Brick, mineral wool, air gap, brick facade, plus triple glazing
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Walls are somewhat more “breathable,” but the companies still recommend a ventilation system.

36.5 cm (14.4 inches) Wienerberger thermal brick, plaster, no additional insulation, plus double glazing
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The “Mercedes” among bricks, no additional insulation needed, walls can breathe, triple glazing is not necessary.

So, which company is actually right and offers the perfect wall?

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I have removed the names of the providers because otherwise I would have had to move the post into the moderated forum.

Best regards, Bauexperte
Bauexperte

nathi1 Jun 2015 21:52

#13

Lebensprojekt schrieb:

Well, that's basically how the building biologist described it—he considers aerated concrete the devil of all masonry materials.

Wouldn't a building biologist prefer wood anyway?

Lebensprojekt1 Jun 2015 22:53

#14

nathi schrieb:
Wouldn't a building biologist prefer wood anyway?

That's exactly right! But we didn’t want, for example, a timber frame construction, which is why we didn’t proceed with the deal.

Lebensprojekt1 Jun 2015 22:57

#15

Bauexperte schrieb:
Aerated concrete requires more precise workmanship, whereas with hollow brick blocks the plasterer has to compensate for tolerances caused by the firing process. For us, the only important thing is that by using one type of block or the other, we can avoid using an external thermal insulation composite system (ETICS). So I have no preference for or against either.

Regards, Bauexperte

Well, our initial idea was aerated concrete on the outside and sand-lime brick on the inside.

When you’re still open to everything at the beginning, you always end up being pushed one way or another.

Legurit1 Jun 2015 23:12

#16

Our builder usually uses aerated concrete and calcium silicate bricks as standard.
We are now building with calcium silicate bricks only – although this results in a lower thermal transmittance value (U-value), we hope to gain a bit more temperature stability.

Lebensprojekt1 Jun 2015 23:17

#17

Another reason we switched to Poroton is that it was supposed to keep the house cooler. I will probably be proven wrong once again.

Best regards

Legurit1 Jun 2015 23:21

#18

It depends somewhat on the Poroton brick (just as it depends on the aerated concrete block).. but in general, that is correct – Poroton is somewhat more solid than aerated concrete.

ᐅ The Ideal Wall Construction for a Solid (Masonry) House

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