ᐅ Building Material Choice: Brick or Aerated Concrete – Acoustic Assessment Considerations

Created on: 26 Feb 2022 10:49
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Seb_Opf
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Seb_Opf
26 Feb 2022 10:49
Hello,

we are currently deciding on the building material... We have been offered both brick and aerated concrete, with no price difference according to what we were told, and the company uses both materials about 60/40%. There have been various trends, sometimes more brick, sometimes more aerated concrete.

The plan is to build a single-family house of 140-150 sqm (1500-1600 sq ft), KfW 40 standard (if eligible for subsidies, otherwise 55), monolithic, with a centralized ventilation system and an air-to-water heat pump. The shell construction will be managed by ourselves.

I have read that aerated concrete offers slightly better insulation, while brick is preferable for soundproofing. Even when asking several homeowners, you get 15 opinions from 10 people. A secondary school is being built nearby, and a state road runs about 300 m (980 ft) away. I have attached excerpts from the acoustic report.

Are there advantages to one of these materials in this situation, or can I basically just “flip a coin”?

Thanks for your opinions

Kartenansicht mit farblich markierten Bereichen und Hinweis Verkehrslärm Tag


Verkehrslärm-Nachtplan mit gruen markierten Werten 45, 40 und 44


Lageplan eines Bauvorhabens mit Dachbereich und Grundrissmarkierungen


Grundrissplan eines Hauses mit schraffierten Bereichen und markierten Zimmern


Draufsicht eines Gebäudeteils mit gruenen 60er Kreisen und Textangaben zum Aussenlaermpegel nach DIN


Außenbeleuchtungsplan eines Gebäudes mit markierten Lampenpositionen
Nida35a26 Feb 2022 11:12
Flipping a coin is an option, and you have a person responsible.

For a gable roof (picture), my main focus would be to have the drywall construction under the roof built with sound insulation (drywall panel thickness).
You sleep upstairs,
and there is activity downstairs in the living area during the day anyway.
We have clay aggregate blocks, filled, 42cm (17 inches),
and the house is quiet.
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Seb_Opf
26 Feb 2022 11:17
There will be two full stories with a pitched roof at 22°
11ant26 Feb 2022 11:19
Please show a much larger section including the school location and the main road.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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hanse987
26 Feb 2022 12:15
What kind of bricks exactly are you planning to use? Solid bricks or hollow bricks?
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Seb_Opf
26 Feb 2022 12:47
hanse987 schrieb:

What kind of bricks exactly are planned? Solid or hollow?


It was said bricks 🤨

11ant schrieb:

Please show a much larger section including the school site and the main road.


Attached...

X = Plot
Orange = Main road / state road
Green = New school building – there is a slope, so I think the building will be no more than one floor above street level
Blue = Schoolyard
Purple = Planned construction phase 2 of the new development area

Aerial photo of fields with yellow plot boundaries, orange road, sports field to the right.