ᐅ Which type of masonry is suitable for noise level category III?
Created on: 6 May 2021 09:05
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PiaundEike
Hello everyone,
I am new to this forum, so please excuse me if I forget something 🙂
My partner and I have purchased a plot of land, but it is located in noise level zone 3, which means we have certain soundproofing requirements for the exterior walls of the bedrooms.
Does anyone have experience with this and can advise us on which type of exterior masonry we need to comply with the DIN standard? We would like to use bricks because of the indoor climate. However, do we also need to consider additional insulation? How thick would the wall be in total? Or would it be better to use a different type of masonry block?
Thank you very much and best regards,
Pia und Eike
I am new to this forum, so please excuse me if I forget something 🙂
My partner and I have purchased a plot of land, but it is located in noise level zone 3, which means we have certain soundproofing requirements for the exterior walls of the bedrooms.
Does anyone have experience with this and can advise us on which type of exterior masonry we need to comply with the DIN standard? We would like to use bricks because of the indoor climate. However, do we also need to consider additional insulation? How thick would the wall be in total? Or would it be better to use a different type of masonry block?
Thank you very much and best regards,
Pia und Eike
Bookstar schrieb:
These bricks are ALWAYS not recommended. They are really problematic in terms of sound insulation.I don’t know much about this, but why are air-filled bricks discouraged here? A brick is heavier than a Ytong block, so it should provide better soundproofing than Ytong. Or am I mistaken?
Crixton schrieb:
I don’t know much about this, but why is it not recommended to use air-filled bricks here?
A brick is heavier than a Ytong block, so it should provide better sound insulation than Ytong. Or am I mistaken? Yes, you are mistaken. Ytong is similar but has the advantage of not being hollow. Uninsulated bricks act like resonance chambers, similar to a guitar. Any noise inside gets amplified and transmitted from room to room, and it can be especially disturbing when noise passes from upper floors to ground floors. Some people might not mind this, but it’s important to be aware of it.
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SamSamSam11 May 2021 18:18Our general contractor will build the wall structure, even though we are building in energy efficiency standard LPB 3, as follows by default:
A cavity wall consisting of: an inner layer of 17.5 cm (7 inches) aerated concrete plan blocks, 14 cm (5.5 inches) core insulation (two boards of 1x6 cm and 1x8 cm, thermal conductivity group 035), a 2.0 cm (0.8 inch) air gap, and an outer facing brick layer of 11.5 cm (4.5 inches) (NF or DF bricks), mortared, including stainless steel (V2A) wall ties, vapor barrier foil from Ceresit BT 21 waterproof membrane or equivalent. This results in a total wall thickness of approximately 45.0 cm (18 inches) for cavity walls.
No idea if this is good or bad. I think it’s probably one of the most cost-effective options?! 🙄
At least from most construction sites I have seen here, aerated concrete is commonly used.
A cavity wall consisting of: an inner layer of 17.5 cm (7 inches) aerated concrete plan blocks, 14 cm (5.5 inches) core insulation (two boards of 1x6 cm and 1x8 cm, thermal conductivity group 035), a 2.0 cm (0.8 inch) air gap, and an outer facing brick layer of 11.5 cm (4.5 inches) (NF or DF bricks), mortared, including stainless steel (V2A) wall ties, vapor barrier foil from Ceresit BT 21 waterproof membrane or equivalent. This results in a total wall thickness of approximately 45.0 cm (18 inches) for cavity walls.
No idea if this is good or bad. I think it’s probably one of the most cost-effective options?! 🙄
At least from most construction sites I have seen here, aerated concrete is commonly used.
SamSamSam schrieb:
Facing brick 11.5cm (4.5 inches) (NF or DF) I wouldn’t overdo it and go with NF (twelve courses per meter), with DF it would be sixteen.
SamSamSam schrieb:
This results in a total wall thickness of about 45.0cm (18 inches) for brick-faced constructions. The thickness refers to the dimension, not force, haha. 45cm (18 inches) is 4cm (1.5 inches) less than 49cm (19.25 inches). Especially in this case, with the easily sawable aerated concrete, I would align the facing bricks to the standard module and have the structural wall layer protrude by 4cm (1.5 inches).
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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SamSamSam11 May 2021 18:4311ant schrieb:
The thickness refers to the measurement of depth, not strength, haha.Wow 😳 the scanner somehow changed total thickness to total strength.Everything else you wrote are abbreviations I have absolutely no idea about 😀
SamSamSam schrieb:
Everything else you wrote are abbreviations I have absolutely no clue about. NF = standard format, brick height 71mm (2.8 inches) plus joint = twelve courses per meter of wall height, DF = thin format, brick height 52mm (2 inches) plus joint = sixteen courses. DF therefore means one third more horizontal joints and one third more masonry hours for the facing wall.
Also, with facing or veneer masonry (in my opinion even with irregular bond patterns), it becomes noticeable if the wall (section) lengths are not aligned in 8-meter (26.2 feet) intervals. Arbitrary dimensions will cause problems, especially when installing the veneer. With easily sawable aerated concrete, deviating from the pattern doesn’t matter as much, since it can be adjusted again in the facing layer. With other types of masonry units, I would advise against such out-of-pattern overall wall thicknesses.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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