ᐅ Wood ceiling in new construction: which option provides better sound absorption?
Created on: 1 Dec 2014 11:13
J
JacobHello,
we are currently considering how to construct the intermediate ceiling in our single-family house. According to the structural engineer, wooden beams measuring 10x24 cm (4x9.5 inches) will be used as ceiling joists between the ground floor and first floor. For aesthetic reasons, we could leave these visible, install subflooring on top, and create a thicker build-up (we are planning 40 mm (1.5 inches) impact sound insulation, 8 cm (3 inches) rigid foam, 6-6.5 cm (2.4-2.6 inches) heated screed, and tiles/laminate). We need a certain height to accommodate installation lines that would otherwise have to run between the joists, such as water, wastewater, and ventilation pipes. However, we have some concerns regarding sound insulation (I believe this is called impact sound insulation). We are worried about noise heard downstairs when, for example, the children are playing upstairs, blocks are being thrown around, or the Duplo train is rattling on the floor. Since the living room will be underneath the children’s rooms, we could follow a more classic approach by insulating between the joists with, for example, 200 mm (8 inches) flexible insulation batts, cladding from below with drywall, and instead of approximately 20 cm (7.9 inches), have only 15 cm (6 inches) floor build-up on the first floor.
What are your thoughts? Any other or better suggestions? Is it possible to have an architect calculate which option provides better sound absorption?
we are currently considering how to construct the intermediate ceiling in our single-family house. According to the structural engineer, wooden beams measuring 10x24 cm (4x9.5 inches) will be used as ceiling joists between the ground floor and first floor. For aesthetic reasons, we could leave these visible, install subflooring on top, and create a thicker build-up (we are planning 40 mm (1.5 inches) impact sound insulation, 8 cm (3 inches) rigid foam, 6-6.5 cm (2.4-2.6 inches) heated screed, and tiles/laminate). We need a certain height to accommodate installation lines that would otherwise have to run between the joists, such as water, wastewater, and ventilation pipes. However, we have some concerns regarding sound insulation (I believe this is called impact sound insulation). We are worried about noise heard downstairs when, for example, the children are playing upstairs, blocks are being thrown around, or the Duplo train is rattling on the floor. Since the living room will be underneath the children’s rooms, we could follow a more classic approach by insulating between the joists with, for example, 200 mm (8 inches) flexible insulation batts, cladding from below with drywall, and instead of approximately 20 cm (7.9 inches), have only 15 cm (6 inches) floor build-up on the first floor.
What are your thoughts? Any other or better suggestions? Is it possible to have an architect calculate which option provides better sound absorption?