Which masonry is suitable for noise level range III

2021-05-11 16:02:51

Sand-lime brick + mineral wool + facing brick, if we're already talking about the ultimate.

Is mineral wool meant by MW?

2021-05-11 16:04:19

does MW mean mineral wool?

Exactly: refrigerator, dairy farming, and clinker :-)

2021-05-11 16:12:48

Sound is a b... Do not fall under the false assumption that the higher the insulation value of the masonry, the quieter it is inside. Of course, there is a connection, but it doesn’t help if you have the best wall construction and then use uninsulated roller shutter boxes or the connections are poorly executed. So consider whether you just want to achieve a certain value theoretically or if you actually want it to feel quieter. You should discuss this with the planner. And if they don’t know about it, then bring in someone who does. And then please also supervise the execution. However, too strong shielding is not necessarily the best thing. If no noises from outside are audible at all, that can also be strange. Also, noises inside the house are then perceived more strongly. Do you always want that?

2021-05-11 16:27:03

Exactly: refrigerator, dairy industry and clinker :)

ah ok yeah makes sense... I thought otherwise

2021-05-11 16:39:44

Noise is a bitch...

Don't fall into the misconception that the higher the insulation value of the masonry, the quieter it is inside. Of course, there's a connection, but it doesn't help you if you have the best wall construction and then use uninsulated shutter boxes or the connections are poorly executed.

So consider whether you just want to achieve a certain value in calculations or if you actually want it to feel quieter. You should discuss that with the planner. And if they don't know about it, then bring in someone who does. And please also supervise the execution.

But too strong shielding isn't necessarily the best thing either. If no noises from outside are audible at all, that can also be unsettling. Plus, then noises inside the house are perceived more strongly. Is that always what you want?

Thanks for the detailed advice :)
It's about building in a noise level area (LB 3) and needing a certain sound insulation to get the building permit :)
Also a ventilation system accordingly

2021-05-11 16:59:48

Thank you for the detailed note :) It's about building in a noise level zone (LB 3) where a certain sound insulation is required to obtain the building permit :) Also a corresponding ventilation system

This can be demonstrated by calculation. Depending on the municipality, either a rough note where you scribble three sound insulation values or a proper calculation proof is sufficient. Some civil engineer/architect/technical building equipment specialist etc. does this, it just costs a few euros. So if there is a sound insulation assessment for the construction area, this is used and the values are then applied to the relevant rooms (usually bedrooms). Every surface and its composition is included. If done correctly, it is a small calculation. But only calculated values come out of it.

Which masonry is suitable for noise level range III

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