ᐅ How important is the U-value of interior walls?

Created on: 22 Jun 2016 21:48
T
tabtab
tabtab22 Jun 2016 21:48
Hello,

I am currently deciding on interior wall blocks. The options are blocks with a strength class of 10 or 12 (depending on thickness) and blocks with a strength class of 8. The latter has a slightly better U-value than those with higher strength class.

For interior walls, I think the U-value is less important, and factors like sound insulation and structural strength (we are in seismic zone 3) are more relevant. What do you think?

Have you considered this in your project, or was it not a concern for you? 🙂
M
matte
22 Jun 2016 21:54
The unit of the U-value is watts per square meter per kelvin (W/m²·K).
The crucial factor in this case is the temperature difference between the two sides of the wall. If the temperature is the same on both sides, the heat loss approaches zero.
Furthermore, even with temperature differences, the heat would only transfer to another room within the building envelope.

Therefore, the U-value is quite unimportant for interior walls.
tabtab22 Jun 2016 22:08
Alright, that's what I thought too. Now I'm relieved 🙂
S
Sebastian79
23 Jun 2016 08:26
Why do you have to choose something like that?
tabtab23 Jun 2016 09:09
Not necessary, but I want to.
S
Sebastian79
23 Jun 2016 09:12
Don’t get me wrong, but obviously you have little knowledge of the subject. You “inform” yourself in an online forum, where you receive answers x & y mostly from amateurs – then you decide on something that is supposed to stand for the next 100 years or more?

I find this increasingly a “dangerous” development – it gets worse when people then try to explain the world to trained craftsmen.

The latter is not directed at you… just wanted to point that out.