ᐅ Construction method: 36.5 cm aerated concrete or 17.5 cm masonry with 14 cm external insulation (ETICS/EWI)
Created on: 1 Apr 2017 11:50
M
MaJess
Hello,
we are currently deciding on a construction company. Our main question right now is how we should build our house. We have one offer with a 36.5 cm (14 inch) aerated concrete wall with plaster, and another offer with a 17.5 cm (7 inch) aerated concrete wall plus 14 cm (5.5 inch) external thermal insulation composite system (ETICS) using mineral textured plaster as the top coat with a 2 mm (0.08 inch) grain size, and a base plaster with colored stone plaster as the top coat.
We are very inexperienced with building and do not know which option is better. The house will be built in a quiet village with no traffic noise. It is important for us that we do not have high heating costs, but that the walls can breathe and there is no risk of mold growth.
We appreciate any tips and advice.
The heating system in offer 1 would be gas plus solar, while offer 2 includes an air-to-water heat pump.
Best regards
we are currently deciding on a construction company. Our main question right now is how we should build our house. We have one offer with a 36.5 cm (14 inch) aerated concrete wall with plaster, and another offer with a 17.5 cm (7 inch) aerated concrete wall plus 14 cm (5.5 inch) external thermal insulation composite system (ETICS) using mineral textured plaster as the top coat with a 2 mm (0.08 inch) grain size, and a base plaster with colored stone plaster as the top coat.
We are very inexperienced with building and do not know which option is better. The house will be built in a quiet village with no traffic noise. It is important for us that we do not have high heating costs, but that the walls can breathe and there is no risk of mold growth.
We appreciate any tips and advice.
The heating system in offer 1 would be gas plus solar, while offer 2 includes an air-to-water heat pump.
Best regards
K
Knallkörper1 Apr 2017 21:59However, an insulated wall is mandatory, to put it simply.
Overall, I agree with 11ant and Nordlys. I would choose offer 1; a gas boiler is more to my liking than the air-to-water heat pump and is currently more economical.
Overall, I agree with 11ant and Nordlys. I would choose offer 1; a gas boiler is more to my liking than the air-to-water heat pump and is currently more economical.
K
Knallkörper1 Apr 2017 22:37ypg schrieb:
Walls do not breathe
Best regards in briefBut walls can be vapor permeable or not.
As already mentioned, this topic has been discussed here many times.
Knallkörper schrieb:I completely agree with that!
I would go with offer 1; the gas boiler suits my preference better than the air-to-water heat pump and is currently more economical.
Thank you very much for the many responses!
I think we will go with the first offer.
If I remember correctly, the windows there also have a "rebate ventilation" system, right?!?
I was also able to read the other posts thanks to the link. The discussion here is really intense.
Unfortunately, our budget is very tight. Sand-lime brick is also the preferred option of the builder in the second offer, but it’s less common in our area because it is more expensive. Therefore, it is not feasible for us.
I think we will go with the first offer.
If I remember correctly, the windows there also have a "rebate ventilation" system, right?!?
I was also able to read the other posts thanks to the link. The discussion here is really intense.
Unfortunately, our budget is very tight. Sand-lime brick is also the preferred option of the builder in the second offer, but it’s less common in our area because it is more expensive. Therefore, it is not feasible for us.
Despite minor differences in the assessment of airtight windows, it has been decided and confirmed: You will use 36.5cm (14.4 inches) aerated concrete blocks with scratch render. You will choose a gas heating system. You need to ensure proper ventilation, either by regular airing or by installing some form of mechanical ventilation. The expert panel wishes you a pleasant Sunday, good luck with your building project, and watch out for scams at the model home center!
For any questions, colleagues Elevant and Alex are happy to assist you. Best regards, Karsten
(out of office after dictation)
For any questions, colleagues Elevant and Alex are happy to assist you. Best regards, Karsten
(out of office after dictation)
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