ᐅ Average sound insulation? Walls, floor slabs, doors

Hello.
Our general contractor pointed out the issue of sound insulation and recommended the following to us. We are not extremely sensitive but don’t want the house to be unnecessarily noisy either. Therefore, I would like to ask for your opinions on this. It is a single-family house with two full stories.

Exterior walls: 17.5 cm (7 inches) hollow brick from the brand unipor with external thermal insulation composite system (ETICS)
Interior walls: 11.5 cm (4.5 inches) calcium silicate brick, sound insulation category 2.0
Floor slabs: precast concrete elements (filigree slab)
Interior doors: hollow core doors
Bathroom interior door (washer + dryer): climate protection door with sound insulation class 1 with Schallex
Utility room interior door (gas heating, controlled ventilation system): climate protection door with sound insulation class 1 with Schallex

What do you think? Would this be sufficient for someone with “average” sensitivity? I know that sensitivity is subjective, but I’m still interested in your opinions.

If you're going with external thermal insulation composite systems (ETICS), then brickwork made of sand-lime bricks behind it is preferable. In my opinion, it only has advantages, especially when it comes to sound insulation.

Use solid core interior doors. What about the windows?

I have never encountered any soundproofing issues in a single-family house made of masonry, as long as it is not located in a noisy area such as near an airport or heavy traffic. Only with prefabricated houses have I occasionally noticed some negative aspects, but I wouldn't generalize that.

Whether using sand-lime brick or clay brick, you won’t have any problems with soundproofing in a quiet location... The weak points are usually elsewhere... for example, the windows.

Alex85 schrieb:
If you're going with external thermal insulation composite system (ETICS), then calcium silicate blocks behind it. In my opinion, it only has advantages, especially when it comes to sound insulation.

Use solid core interior doors. What about the windows?

We haven’t yet reviewed the windows with the general contractor.

Just to clarify... Are solid core doors those energy-efficient doors with sound insulation class 1 and the Schallex floor seal? We were told that hollow core doors are already considered a higher class in terms of sound insulation.

Both can have good or poor sound insulation. You really can’t determine it based on whether it’s solid chipboard or hollow core chipboard.

No idea what climate protection doors are 🙂
Just google the structure of hollow core and solid core doors. Solid core doors are fully filled = more/continuous mass = sound insulation.