ᐅ Prefabricated house, poor sound insulation / high noise transmission
Created on: 12 Nov 2019 19:05
T
theo1988
Hello,
I live in a prefabricated single-family house built in 2017.
Unfortunately, the walls in the house are very noisy.
For example, if you put your ear against the wall, you can hear people talking on the street. Also, when cars drive by, there is a booming sound inside the house because the exterior wall is probably too light or thin.
The exterior wall consists of 80 mm (3 inches) of polystyrene insulation panels, 12 mm (0.5 inches) OSB boards, 140 mm (5.5 inches) of interior insulation, and 12 mm (0.5 inches) gypsum fiberboards.
What options are there to have the construction company make improvements?
Would it make sense to have an acoustic report conducted?
I would appreciate any help!
Regards, theo1988
I live in a prefabricated single-family house built in 2017.
Unfortunately, the walls in the house are very noisy.
For example, if you put your ear against the wall, you can hear people talking on the street. Also, when cars drive by, there is a booming sound inside the house because the exterior wall is probably too light or thin.
The exterior wall consists of 80 mm (3 inches) of polystyrene insulation panels, 12 mm (0.5 inches) OSB boards, 140 mm (5.5 inches) of interior insulation, and 12 mm (0.5 inches) gypsum fiberboards.
What options are there to have the construction company make improvements?
Would it make sense to have an acoustic report conducted?
I would appreciate any help!
Regards, theo1988
I can hear, although very muffled, when
- cars drive by
- car doors slam
- people talk loudly
It is quieter than at my neighbors’ place, despite this being a new build.
@theo1988
Do you have window frame vents or a decentralized ventilation system?
Do you have taller plants in the front yard? They can affect sound as well.
Is it generally too loud or only certain noises? For example, cooling trucks.
- cars drive by
- car doors slam
- people talk loudly
It is quieter than at my neighbors’ place, despite this being a new build.
@theo1988
Do you have window frame vents or a decentralized ventilation system?
Do you have taller plants in the front yard? They can affect sound as well.
Is it generally too loud or only certain noises? For example, cooling trucks.
haydee schrieb:
I can hear, at our place, when
- Cars drive by
- Car doors slam
- People talking loudly
The sounds are noticeably muffled but still perceptible, and quieter than at my neighbors’ place – despite it being a new build.
@theo1988
Do you have trickle vents in your windows or a decentralized ventilation system?
Do you have taller plants in the front garden? They can affect sound levels.
Is it generally too noisy or only certain sounds? For example, delivery trucks. What is your house constructed from, just to get an idea?
Scout schrieb:
The IDE requirement values of the standard DIN 4109-1: Sound insulation in building construction from January 2018 apply, Hello The house was built in 2017. Therefore, regulations enacted in 2018 cannot apply. StevenSnowy36 schrieb:
What materials is your house built from, to get an idea?From inside to outside:
Drywall (children’s room double-layered)
15 cm (6 inches) solid cross-laminated timber
30 cm (12 inches) external thermal insulation composite system (ETICS / EIFS)
Plaster
All airtight sealed as it is a passive house.
Traffic volume is just over 8,000 vehicles per week, including agricultural traffic. Most traffic occurs from 6 a.m. to 6 p.m., Monday to Friday.
Many pedestrians and plenty of parking spaces around.
Bookstar schrieb:
Have you checked the windows? What you describe probably applies to 90% of houses and doesn’t sound like a defect. It’s due to the energy saving regulations; in the past, solid construction was possible. Nowadays, it’s all about thermal insulation...Hi Bookstar, Do you mean that 90% of new prefabricated houses are built with poor sound insulation? I didn’t know that.
That would be really disappointing!
People pay over 300,000–400,000 (USD) and end up living in a noisy place... Honestly.
What we all put up with... really unfortunate.
I hope for the original poster that triple glazing and other measures to improve sound insulation can help.
This has nothing to do with prefab houses or not, right?
The energy saving regulations only specify how thermally efficient a house must be, regardless of the construction method.
For example, triple-glazed windows: as long as you have soundproofing class 2 (which is the standard), you achieve the highest thermal insulation—so energy saving regulation class 1+.
However, the soundproofing is just a plain 6, because there is no mass. If you choose higher soundproofing, for example class 4, the thermal efficiency decreases.
In conclusion: today’s houses have excellent thermal insulation but poor soundproofing.
The energy saving regulations only specify how thermally efficient a house must be, regardless of the construction method.
For example, triple-glazed windows: as long as you have soundproofing class 2 (which is the standard), you achieve the highest thermal insulation—so energy saving regulation class 1+.
However, the soundproofing is just a plain 6, because there is no mass. If you choose higher soundproofing, for example class 4, the thermal efficiency decreases.
In conclusion: today’s houses have excellent thermal insulation but poor soundproofing.
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