ᐅ Future-proof wall thickness?

Good morning dear forum,

I have a question regarding our house planning:

Every year, the regulations for houses and their insulation (new builds & existing buildings) are becoming stricter. If I build now – assuming a 36cm (14 inch) masonry wall with a thermal conductivity of 0.09 – will I have to retrofit/add insulation in the future?

If that is the case, are there wall specifications (thickness/thermal conductivity) that exclude the need for later insulation?

Thank you and best regards,
Peter

Hello,

PeterXYZ schrieb:
...Every year, the regulations for houses and their insulation (new build & existing buildings) become more stringent.

This usually applies to new constructions.

PeterXYZ schrieb:
...If I build now – assuming 36 cm (14 inches) masonry with a thermal conductivity of 0.09 – will I have to retrofit or add insulation in the future?

That’s no longer solid (monolithic) masonry, but more like a crumbly monster ;-)

Best regards.

That’s no longer a solid block (monolithic), but more like a crumbly monster ;-)

My first guess would be aerated concrete (Ytong) ^^

If I build now – assuming 36cm (14 inches) masonry with a thermal conductivity of 0.09 – will I need to do additional insulation later?

Maybe if the facade needs renovation in 20 years… otherwise, it probably won’t come to that…

If that’s the case, are there wall specifications (thickness/thermal conductivity) where additional insulation can be ruled out?

About 80–90cm (31–35 inches) of aerated concrete and up should be enough to be on the safe side for now!

Hi,
I interpret the first two replies as suggesting that any improvements would only be necessary, at the earliest, during a facade renovation.
Otherwise, the two responders seem to be opponents of monolithic construction ("cookie monster," "80-90cm Ytong blocks"), right?

PeterXYZ schrieb:
Otherwise, the two responders seem to be opponents of the monolithic construction method ("cookie monster", "80-90cm Ytong")?

No, you need to differentiate here. Is it self-construction or professional work? In the latter case, it always makes sense to separate structural load-bearing (static), sound insulation, and thermal insulation, meaning each aspect should be handled by the respective specialist. Anything else would be a compromise. In self-construction, the situation often looks somewhat different, as other factors also come into play.

Best regards