ᐅ Improving sound insulation between the ground floor and the upper floor in a new build
Created on: 22 Sep 2014 16:24
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NordlichtchenN
Nordlichtchen22 Sep 2014 16:24Hello,
we have a newly built single-family house from 2013, and we are not satisfied with the sound insulation between the upper and lower floors.
From the perspective of the ground floor, there is an exposed beam ceiling (10 x 24 cm (4 x 9.5 inches) ceiling beams with visible boarding on top), constructed as follows from bottom to top:
10 x 24 cm (4 x 9.5 inches) beam layer
27 x 127 mm (1 x 5 inches) visible boarding (Siljan floorboard)
All installation lines such as water, sewage, central vacuum system, and electrical cables run on top of the boarding
4 cm (1.5 inches) stone wool impact sound insulation
12 cm (5 inches) rigid polystyrene foam insulation (2 x 6 cm (2 x 2.5 inches)) with perimeter insulation strip
PE foil
Underfloor heating
6 cm (2.5 inches) cement screed
Floor covering: tiles or laminate with Ewifoam Universal impact sound insulation
It is especially too noisy downstairs in the living room when children play upstairs in the kid’s room (even the battery-operated Duplo train running on the floor is loud enough). Conversely, it is also disturbing upstairs in the bedroom when someone sleeps and snores in the guest room below, and the sound comes through the floor.
What could be done, or what measures have a good sound insulation effect?
1. Install mineral wool insulation between the beams (completely insulated or only partially?) and cover everything with drywall or gypsum fiberboard attached to boarding? (This would remove the visible beam layer, but that would have to be accepted.)
2. Install mineral wool insulation between the beams and mount a suspended drywall or gypsum fiberboard ceiling below.
3. To preserve the visible beam area, add mineral wool insulation between the beams in the upper part and install visible boarding between the beams underneath (basically insulating and covering part of the space between the beams).
How would you approach this?
Calculating the effects is quite difficult and extensive because it is unclear how the beams rest on the walls and which connections were made.
Best regards
we have a newly built single-family house from 2013, and we are not satisfied with the sound insulation between the upper and lower floors.
From the perspective of the ground floor, there is an exposed beam ceiling (10 x 24 cm (4 x 9.5 inches) ceiling beams with visible boarding on top), constructed as follows from bottom to top:
10 x 24 cm (4 x 9.5 inches) beam layer
27 x 127 mm (1 x 5 inches) visible boarding (Siljan floorboard)
All installation lines such as water, sewage, central vacuum system, and electrical cables run on top of the boarding
4 cm (1.5 inches) stone wool impact sound insulation
12 cm (5 inches) rigid polystyrene foam insulation (2 x 6 cm (2 x 2.5 inches)) with perimeter insulation strip
PE foil
Underfloor heating
6 cm (2.5 inches) cement screed
Floor covering: tiles or laminate with Ewifoam Universal impact sound insulation
It is especially too noisy downstairs in the living room when children play upstairs in the kid’s room (even the battery-operated Duplo train running on the floor is loud enough). Conversely, it is also disturbing upstairs in the bedroom when someone sleeps and snores in the guest room below, and the sound comes through the floor.
What could be done, or what measures have a good sound insulation effect?
1. Install mineral wool insulation between the beams (completely insulated or only partially?) and cover everything with drywall or gypsum fiberboard attached to boarding? (This would remove the visible beam layer, but that would have to be accepted.)
2. Install mineral wool insulation between the beams and mount a suspended drywall or gypsum fiberboard ceiling below.
3. To preserve the visible beam area, add mineral wool insulation between the beams in the upper part and install visible boarding between the beams underneath (basically insulating and covering part of the space between the beams).
How would you approach this?
Calculating the effects is quite difficult and extensive because it is unclear how the beams rest on the walls and which connections were made.
Best regards
Counterquestion:
Was the floor construction carried out correctly?
If it is really that extreme, perhaps the screed is touching the wall or there were other construction defects.
Generally, heavier materials are used for impact sound insulation; I’m not sure if lightweight mineral wool is suitable for this purpose.
Also, you need to ensure that the ceiling is decoupled; otherwise, the sound will also be transmitted to the suspended ceiling.
Was the floor construction carried out correctly?
If it is really that extreme, perhaps the screed is touching the wall or there were other construction defects.
Generally, heavier materials are used for impact sound insulation; I’m not sure if lightweight mineral wool is suitable for this purpose.
Also, you need to ensure that the ceiling is decoupled; otherwise, the sound will also be transmitted to the suspended ceiling.
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Nordlichtchen25 Sep 2014 09:08The Rockwool stone wool is a special heavy impact sound insulation (Floorrock) that, for example, also provides better performance than PS20 (this soft, brittle polystyrene material that is often used).
Building defects were already checked together with the architect and then again with the carpenter (the product was installed by the screed layer specialist), and everything is fine so far.
Building defects were already checked together with the architect and then again with the carpenter (the product was installed by the screed layer specialist), and everything is fine so far.
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