ᐅ Aerated Concrete / Brick / Monolithic Construction – Who Has Experience?
Created on: 11 Sep 2017 20:23
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Häuslebauer24
Hello everyone,
We have a very nice plot of land in mind. It is tied to a specific developer. The house is planned to be built using solid construction (monolithic method).
We are not construction experts, and none of us have any professional or personal experience with building. Over the past while, we have tried to gather as much information as possible, compared developers (both prefabricated and solid construction), studied and compared technical specifications, and so on... so far, no provider offered solid construction as an option, so this is our first time dealing with it. According to Google, it largely depends on the bricks and the wall thickness. From the project manager, we only know so far that the thickness should be 36.6 cm (14.4 inches), but we do not yet know which type of bricks they are using (we will ask).
What is your general opinion on solid construction? There is so much discussion about insulation that the idea initially felt a bit strange... It is said that no ventilation system would be needed because of this... The house is supposed to meet KFW 55 standards.
By the way, the plot is located near a forest, in case that matters.
What should we pay attention to?
Thank you!
We have a very nice plot of land in mind. It is tied to a specific developer. The house is planned to be built using solid construction (monolithic method).
We are not construction experts, and none of us have any professional or personal experience with building. Over the past while, we have tried to gather as much information as possible, compared developers (both prefabricated and solid construction), studied and compared technical specifications, and so on... so far, no provider offered solid construction as an option, so this is our first time dealing with it. According to Google, it largely depends on the bricks and the wall thickness. From the project manager, we only know so far that the thickness should be 36.6 cm (14.4 inches), but we do not yet know which type of bricks they are using (we will ask).
What is your general opinion on solid construction? There is so much discussion about insulation that the idea initially felt a bit strange... It is said that no ventilation system would be needed because of this... The house is supposed to meet KFW 55 standards.
By the way, the plot is located near a forest, in case that matters.
What should we pay attention to?
Thank you!
The 30 cm (12 inches) block performs well. We also use it, monolithic, as long as you don’t use excessive glazing. Our setup: 30 cm (12 inches) Ytong blocks, Weber lightweight plaster filled with polystyrene beads, topped with Weber finishing plaster plus silicone paint. Triple-glazed VERKA profile windows, U-value of 0.9, solar thermal for hot water plus a Junkers condensing gas boiler. Underfloor heating. The house stays warm, easily meeting the thermal insulation requirements. Complies with the 2016 energy saving regulations.
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Christian NW27 Nov 2017 09:34Nordlys schrieb:
The house is warm, thermal insulation calculation easily met. Energy Saving Ordinance 2016.Where are you with the calculation? kWh*(m²/a)
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Christian NW27 Nov 2017 09:41markus2703 schrieb:
The insulation value of the 30 cm (12 inch) blocks is, in my opinion, perfectly adequate. First year with domestic hot water preparation and a cold winter, gas costs about 45 € per month (129 m2 (1,388 sq ft), 4 people)Where did you end up with the calculation (kWh/(m2*a))? With the 30 cm (12 inch) block, are you far from the KfW 55 standard?
markus2703 schrieb:
It would be interesting to know why you need sound insulation class 3. Is it a main road or an urban area?It’s an urban area. We also have the decentralized system— is it really that noisy because of it?
markus270327 Nov 2017 10:31Regarding your first question: I’m not familiar with the calculations, as I haven’t looked into that. The main thing is to meet the requirements.
We have the decentralized e2 units from Lunos. I wouldn’t say it’s a problem, but you can clearly hear noise coming through the fans into the house. There are exterior covers available to improve sound insulation, but they are quite expensive. For us, it’s acceptable because we usually don’t have a lot of noise around here. In a city, I would prefer to avoid this solution if possible.
You are installing windows with enhanced sound insulation requirements, so I assume you will regret the fans later on!
We have the decentralized e2 units from Lunos. I wouldn’t say it’s a problem, but you can clearly hear noise coming through the fans into the house. There are exterior covers available to improve sound insulation, but they are quite expensive. For us, it’s acceptable because we usually don’t have a lot of noise around here. In a city, I would prefer to avoid this solution if possible.
You are installing windows with enhanced sound insulation requirements, so I assume you will regret the fans later on!
The subsidy for the KfW70 standard was discontinued because it has basically been legally required since the 2016 Energy Saving Ordinance. Naturally, there is no additional incentive for merely complying with regulations. You can now make your own plaque stating that your house meets KfW70 standards—there just isn’t any funding available for it anymore.
https://www.instagram.com/11antgmxde/
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https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
We built a monolithic KFW55 house in 2013/2014 using 36.5 cm (14.4 inches) aerated concrete with a thermal conductivity of 0.08 W/mK.
The decentralized Lunos E2 ventilation system with heat recovery is quite nice, but I would be more convinced if one of the units did not start making hammering noises during operation (which began after two years).
We also chose the large aerated concrete construction company. However, many customers were gradually dissatisfied as labor cost savings started to affect the quality of workmanship. The franchisee is no longer operating. I was closely involved in the construction process and therefore did not notice any defects in the finished building.
I can only recommend the monolithic construction method.
The decentralized Lunos E2 ventilation system with heat recovery is quite nice, but I would be more convinced if one of the units did not start making hammering noises during operation (which began after two years).
We also chose the large aerated concrete construction company. However, many customers were gradually dissatisfied as labor cost savings started to affect the quality of workmanship. The franchisee is no longer operating. I was closely involved in the construction process and therefore did not notice any defects in the finished building.
I can only recommend the monolithic construction method.
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