ᐅ Is sound insulation according to DIN 4109-1 sufficient for a mid-terrace house?
Created on: 30 Dec 2021 14:51
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Twist21
Hello everyone,
I am considering buying a mid-terrace house in a new development. In the construction specifications under the section on sound insulation, it states that only the legally required minimum standards according to DIN 4109-1 are met. Furthermore, according to the construction specifications and thus confirmed in writing by the developer, the sound insulation according to 4109-1 is significantly below the high level of soundproofing usually expected in terraced or semi-detached houses, and noise from neighboring mid-terrace houses can be clearly heard.
According to homeowner literature, the minimum requirement under DIN 4109-1 for sound insulation is described as “loud speech intelligible, loud music audible” and impact sound insulation as “footsteps disturbing.” Additionally, the book advises against DIN 4109-1 and refers instead to VDI 4100 (2007).
Therefore, I assume that noise I generate (speech + footfall + TV/music, etc.) can be heard in the adjacent mid-terrace houses and vice versa. Would this mean that my neighbors would already be disturbed if my TV runs until midnight and they go to bed at 10 p.m.?
I am waiting for a response from an expert, but before that, I wanted to gather your opinions and experiences here in the forum on whether meeting only the DIN 4109-1 sound insulation standard would be a dealbreaker for buying this mid-terrace house, especially since I often work from home and my neighbors might overhear my confidential conversations and vice versa.
Here are the key data:
Ceilings L’n, w ≤ 41 dB
Stairs: L’n, w ≤ 46 dB
Ground floor party walls: R’w = 63 dB
Water installations L ≤ 27 dB (A)
Other building services equipment L ≤ 30 dB (A)
Partition walls between the mid-terrace houses are reinforced concrete walls, each 12 cm (5 inches) thick. Between the walls are separating joint panels, 4 cm (1.5 inches) thick.
I hope I am somewhat overestimating my concern and would appreciate any feedback, whether it confirms or contradicts my assumption.
Thank you in advance and good luck,
Twist21
I am considering buying a mid-terrace house in a new development. In the construction specifications under the section on sound insulation, it states that only the legally required minimum standards according to DIN 4109-1 are met. Furthermore, according to the construction specifications and thus confirmed in writing by the developer, the sound insulation according to 4109-1 is significantly below the high level of soundproofing usually expected in terraced or semi-detached houses, and noise from neighboring mid-terrace houses can be clearly heard.
According to homeowner literature, the minimum requirement under DIN 4109-1 for sound insulation is described as “loud speech intelligible, loud music audible” and impact sound insulation as “footsteps disturbing.” Additionally, the book advises against DIN 4109-1 and refers instead to VDI 4100 (2007).
Therefore, I assume that noise I generate (speech + footfall + TV/music, etc.) can be heard in the adjacent mid-terrace houses and vice versa. Would this mean that my neighbors would already be disturbed if my TV runs until midnight and they go to bed at 10 p.m.?
I am waiting for a response from an expert, but before that, I wanted to gather your opinions and experiences here in the forum on whether meeting only the DIN 4109-1 sound insulation standard would be a dealbreaker for buying this mid-terrace house, especially since I often work from home and my neighbors might overhear my confidential conversations and vice versa.
Here are the key data:
Ceilings L’n, w ≤ 41 dB
Stairs: L’n, w ≤ 46 dB
Ground floor party walls: R’w = 63 dB
Water installations L ≤ 27 dB (A)
Other building services equipment L ≤ 30 dB (A)
Partition walls between the mid-terrace houses are reinforced concrete walls, each 12 cm (5 inches) thick. Between the walls are separating joint panels, 4 cm (1.5 inches) thick.
I hope I am somewhat overestimating my concern and would appreciate any feedback, whether it confirms or contradicts my assumption.
Thank you in advance and good luck,
Twist21
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Benutzer20030 Dec 2021 19:02Twist21 schrieb:
Any opinions that could disprove my concern yet.Just for comparison: in typical multi-story apartment buildings, the units are not separated by individual walls; instead, the walls are shared. Even in those cases—and exceptions always prove the rule—the sound insulation is relatively comfortable. And you have concrete walls with a lot of mass and separation joint panels in between. Any tenant in a multi-family building would probably be very jealous of your situation.H
Hutchinson12330 Dec 2021 20:02I think there was poor workmanship during our construction.
I guess it’s the typical mortar blob between the walls.
You can also feel the structure-borne noise on your own body.
But as already mentioned, compared to an apartment it’s quite luxurious.
It doesn’t really affect things that much.
I guess it’s the typical mortar blob between the walls.
You can also feel the structure-borne noise on your own body.
But as already mentioned, compared to an apartment it’s quite luxurious.
It doesn’t really affect things that much.
Twist21 schrieb:
Partition walls between terraced house party walls = reinforced concrete walls, thickness 12 cm (5 inches) each. Separation joint panels between the walls, thickness 4 cm (1.5 inches). The description doesn’t sound to me like a modern standard terraced house, but rather like an apartment-style townhouse built to the standards of providers such as "Deutsche Reihenhaus" and similar (which, in my opinion, are clearly aimed at buyers who specifically like that concept, but not suitable for everyone else). If I’m correct, you will likely face even bigger issues with other aspects than just sound insulation regulations (DIN).
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
The construction in our mid-terrace house is quite similar. Currently, both our neighbors are working on fitting out their interiors – we hardly hear anything unless someone bangs directly against the concrete wall next door. Normal conversations and such are not audible to us.
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Benutzer20030 Dec 2021 21:0011ant schrieb:
á la "German terraced house"This is still a highly professional supplier who leaves little room for complaints – a well-crafted product for a tight budget.H
Hutchinson12330 Dec 2021 22:15Our development is not a condominium association.
Real subdivision.
Are terraced houses built differently in a condominium association, for example with poorer sound insulation?
Probably not, right?
Real subdivision.
Are terraced houses built differently in a condominium association, for example with poorer sound insulation?
Probably not, right?
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