Prefabricated house, poor sound insulation

I hear at our place when
- cars drive by
- car doors slam
- people when they talk loudly

Very muffled indeed, but noticeable and quieter than at my neighbors - despite new construction.


Do you have window rebate ventilation or decentralized ventilation?
Do you have taller plants in the front yard? They change the sound again.
Is it generally too loud or only certain noises? For example, cooling van

I hear, in our place, when - cars pass by - car doors slam - people when they talk loudly Quite muffled, though, but noticeable and quieter than at my neighbors - despite being a new building. Do you have window frame ventilation or decentralized ventilation? Do you have taller plants in the front yard? They change the sound again. Is it overall too loud or just certain noises? For example, a refrigerated truck

What is your house made of, to be able to classify that?

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 issued in 2018 cannot apply. Steven

What is your house made of, to put it into perspective?

From inside to outside
Plasterboard (children's room double-layered)
15 cm solid wood cross-laminated
30 cm ETICS
Plaster
all sealed airtight as it is a passive house

Traffic volume just over 8,000 vehicles including agricultural traffic in one week. Most from 6 a.m. to 6 p.m. Monday to Friday.
Many pedestrians, a lot of parking space around

Have you checked the windows? What you describe probably applies to 90% of houses and doesn't sound like a defect. The Energy Saving Ordinance is to blame; in the past, you could build solidly. Nowadays, it's only about thermal insulation...

Hi Bookstar,
You mean that 90% of new prefab houses are built in such a way that sound insulation is poor?! I didn’t know that.
That would really be quite bitter!

You might pay over 300-400k only to live in a thin-walled dump... Man, oh man.
What we all let ourselves put up with... Bitter

I hope for the OP that they can be helped with triple glazing and other things that improve sound insulation.

That has nothing to do with prefabricated house yes or no? The Energy Saving Ordinance only specifies how thermally optimized a house should be, regardless of what it is built from... Example window triple glazed: as long as you have sound insulation class 2 (the completely normal standard) you have the highest thermal insulation: so Energy Saving Ordinance class 1+. Sound however a flat 6 because there is no mass. If you choose higher sound insulation, for example class 4, the thermal efficiency decreases.. Ergo: today's houses thermal insulation top, sound insulation flop.