ᐅ Exterior wall constructed monolithically with lightweight concrete (e.g., expanded clay aggregate)
Created on: 4 Nov 2012 23:05
T
Titus
Hello,
after a longer selection process, we have decided to build our new single-family house with Liapor, using monolithic exterior walls (no ETICS / external thermal insulation composite system). Currently, we are considering bricks, aerated concrete (Ytong), and lightweight concrete system elements (Liapor) in the final round.
A question regarding lightweight concrete: so far, we only find quite good evaluations concerning indoor climate, but actually, all suppliers who build with Liapor system elements use ETICS. This makes us a bit uncertain. Based purely on the figures (thermal conductivity, U-value, sound insulation, heat storage capacity, etc.), a wall made of lightweight concrete is on the same level as bricks or Ytong.
Is there any reason why lightweight concrete might not be suitable for monolithic construction? Are the joints of the wall elements perhaps the problem? If monolithic walls with lightweight concrete system elements are already a common practice (and we may not have researched thoroughly enough), does anyone here have experience with this?
Many thanks in advance for any helpful advice.
Titus
after a longer selection process, we have decided to build our new single-family house with Liapor, using monolithic exterior walls (no ETICS / external thermal insulation composite system). Currently, we are considering bricks, aerated concrete (Ytong), and lightweight concrete system elements (Liapor) in the final round.
A question regarding lightweight concrete: so far, we only find quite good evaluations concerning indoor climate, but actually, all suppliers who build with Liapor system elements use ETICS. This makes us a bit uncertain. Based purely on the figures (thermal conductivity, U-value, sound insulation, heat storage capacity, etc.), a wall made of lightweight concrete is on the same level as bricks or Ytong.
Is there any reason why lightweight concrete might not be suitable for monolithic construction? Are the joints of the wall elements perhaps the problem? If monolithic walls with lightweight concrete system elements are already a common practice (and we may not have researched thoroughly enough), does anyone here have experience with this?
Many thanks in advance for any helpful advice.
Titus
One00 schrieb:
We built using 42.5 monolithic construction according to KfW 70 standards and are still very satisfied after one year (thermal insulation—as far as can be judged from the heat pump’s electricity consumption so far, sound insulation, etc.).More detailed data would be interesting. I have also posted mine here in the forum; this might be helpful for other users to compare and see actual figures. Perhaps others with gas systems will share their data as well, so at least some comparisons can be made.
EveundGerd12 Dec 2015 20:53I think the idea is good. However, we still have 7 months left until the first year. Our data regarding gas consumption in the new build is therefore not usable, but maybe Mycraft will provide theirs.