Hello everyone,
We are currently planning our single-family home in the Stuttgart area. Apart from the exterior wall, most details are already decided. The house will be built in a quiet residential area with underfloor heating and gas.
I have received three options:
1. 17.5 cm (7 inches) brick + external thermal insulation composite system (ETICS) (standard wall) with no extra cost.
2. Ytong 36.5 cm (14 inches) block – if I may call it that – with a thermal transmittance of 0.23 W/m²K – additional cost: €8,900.
3. Poroton with 0.19 W/m²K – additional cost: €12,200.
I don’t really want to insulate my house with expanded polystyrene (EPS). I’m not a fan of that. Now I’m hesitating between options 2 and 3. What would you recommend?
Thank you very much.
We are currently planning our single-family home in the Stuttgart area. Apart from the exterior wall, most details are already decided. The house will be built in a quiet residential area with underfloor heating and gas.
I have received three options:
1. 17.5 cm (7 inches) brick + external thermal insulation composite system (ETICS) (standard wall) with no extra cost.
2. Ytong 36.5 cm (14 inches) block – if I may call it that – with a thermal transmittance of 0.23 W/m²K – additional cost: €8,900.
3. Poroton with 0.19 W/m²K – additional cost: €12,200.
I don’t really want to insulate my house with expanded polystyrene (EPS). I’m not a fan of that. Now I’m hesitating between options 2 and 3. What would you recommend?
Thank you very much.
I don’t see why anyone would want thicker masonry than what is structurally required. It costs more money and floor space without providing any practical benefit.
It seems that nowadays construction is mostly done with aerated concrete plus insulation. Since aerated concrete is less load-bearing than sand-lime brick, the walls are usually thicker. Could that be the reason?
Good luck
K1300S
It seems that nowadays construction is mostly done with aerated concrete plus insulation. Since aerated concrete is less load-bearing than sand-lime brick, the walls are usually thicker. Could that be the reason?
Good luck
K1300S
I have two construction specifications so far, and both are based on 17.5cm (7 inches) aerated concrete blocks + 16cm (6.3 inches) insulation + exterior plaster. The walls in these examples are not made of calcium silicate bricks and are not thicker... and the structural engineer in my family told me: get an offer for 24cm (9.5 inches) masonry and keep the 16cm (6.3 inches) insulation. That is where my question comes from...
The specific reason, namely soundproofing, does indeed apply. A railway line borders the property directly.
It might be interesting to compare 17.5cm (7 inches) sand-lime brick with 24cm (9.5 inches) aerated concrete combined with the same insulation regarding noise protection and overall thermal insulation.
It might be interesting to compare 17.5cm (7 inches) sand-lime brick with 24cm (9.5 inches) aerated concrete combined with the same insulation regarding noise protection and overall thermal insulation.
I have some general questions regarding wall construction. Should I unsubscribe just because I know a structural engineer? I don’t have any quotes, but as I mentioned, I have different scope-of-work descriptions from companies in the region (there are 3, not 2 as I initially said). I simply assumed or stated that a "thin" wall that isn’t made of calcium silicate brick plus insulation is the cheapest option, because from my understanding, the scope-of-work descriptions list the standard options, and anything more is available for an additional cost.
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