ᐅ Timber frame construction impact sound insulation upper floor

Created on: 25 Jun 2018 20:42
S
Skyfire
Hello everyone,

I need your advice regarding impact sound insulation. We are in the final stages of planning. Our prefab house provider has planned a floor heating system panel 30-3 as impact sound insulation under the screed on the upper floor.

Alternatively, they offer a 30-5 mineral-based impact sound insulation board.

This would improve the soundproofing of the ceiling.

The additional cost is around 500 euros.

Is it really worth switching to the mineral insulation for impact sound, or is it better to neglect it since the improvement is minimal and invest the money elsewhere?

The children’s rooms are on the upper floor, so we are considering this carefully.

Thank you very much

Sky
S
Skyfire
27 Jun 2018 08:25
I suspected that as well, and it already helps me move forward a bit!

Does mineral wool insulation have any other unbeatable advantages that make it absolutely necessary to choose it?

Otherwise, we might save the money and invest it elsewhere in the house.
M
MayrCh
28 Jun 2018 13:04
Skyfire schrieb:
clad with 12.5mm (0.5 inch) gypsum fiberboard.

How is the gypsum fiberboard attached to the joist structure? If you double-layer the ceiling underneath and decouple it well from the joists (using a spring channel or hanging system), you can improve impact sound insulation a bit, depending on the floor construction above and the adjacent building elements.
N
Nordlichtchen
10 Oct 2018 11:56
For example, Rockwool offers special sound-absorbing stone wool insulation. In our house, we have a comparison: part of the upper floor is insulated with expanded polystyrene (EPS) (hallway, bedroom, bathroom), while the two children’s rooms are insulated with Rockwool. The flooring is the same laminate everywhere except for the bathroom. The difference is clear when the kids drive their toy cars—whether they are in their rooms or in the hallway/bedroom. Generally, stone wool provides better sound insulation than EPS, probably due to its greater mass.