ᐅ Y-Tong (aerated concrete) – a quality building material? (Sound insulation!)
Created on: 20 Aug 2018 19:58
B
Bauherr&-frau
Dear Forum,
Our developer plans to use "Ytong PPW2 d = 36.5 cm (14.4 inches) for the exterior walls according to the scope of work. Inside, 17.5 cm (6.9 inches). On the outside, a 3 mm (0.1 inch) mineral-based lightweight plaster will be applied. To me, this seems somewhat minimal compared to the insulation and materials others are using.
We are wondering if the thermal insulation requirements are met without additional insulation? And what about mold and ventilation? A air-to-water heat pump with underfloor heating is planned.
What worries us even more is the soundproofing, since we have a cobblestone street right outside. A friend who is an engineer told me yesterday that Ytong has "poor sound insulation properties."
So even triple-glazed windows with enhanced soundproofing probably won’t help much? [B] I would appreciate honest clarification and possibly some alternative suggestions. We are not experts and I don’t want to hear every car! Some friends of ours build with calcium silicate blocks and are very satisfied. Their father is an architect and swears by them.
Many thanks and best regards! We would be lost without you!
Our developer plans to use "Ytong PPW2 d = 36.5 cm (14.4 inches) for the exterior walls according to the scope of work. Inside, 17.5 cm (6.9 inches). On the outside, a 3 mm (0.1 inch) mineral-based lightweight plaster will be applied. To me, this seems somewhat minimal compared to the insulation and materials others are using.
We are wondering if the thermal insulation requirements are met without additional insulation? And what about mold and ventilation? A air-to-water heat pump with underfloor heating is planned.
What worries us even more is the soundproofing, since we have a cobblestone street right outside. A friend who is an engineer told me yesterday that Ytong has "poor sound insulation properties."
So even triple-glazed windows with enhanced soundproofing probably won’t help much? [B] I would appreciate honest clarification and possibly some alternative suggestions. We are not experts and I don’t want to hear every car! Some friends of ours build with calcium silicate blocks and are very satisfied. Their father is an architect and swears by them.
Many thanks and best regards! We would be lost without you!
We have a Ytong house. That works for us because we live in Hinterpupsdorf by the lake. The only noises in the early morning are usually birds, which I enjoy hearing. The house is also quite thin-walled, but since it’s just the two of us, that’s not an issue.
For houses in the city, I find this building material unsuitable if they are located near busy roads or other sources of noise. If I were in your position, I would choose Poroton or calcium silicate bricks instead.
For houses in the city, I find this building material unsuitable if they are located near busy roads or other sources of noise. If I were in your position, I would choose Poroton or calcium silicate bricks instead.
Bauherr&-frau9 Oct 2018 18:49I somehow have an aversion to ETICS (external thermal insulation composite systems), and Ytong seems to provide a very comfortable indoor climate. :-( For that reason, I would only want to use sand-lime brick / ETICS if it were necessary. Based on the decibel (dB) values, that doesn’t seem essential to me. Especially since the windows only achieve 35-39 dB. This exterior wall is going to drive me crazy!
The monolithic construction method especially appealed to us back then. My dad was quite often a victim of woodpeckers. They really "love" external thermal insulation composite systems (ETICS). That was also a reason against ETICS. Still, having more peace in the city would be more important to me.
O
Obstlerbaum9 Oct 2018 21:49Bauherr&-Frau schrieb:
[...] The following values were recorded at a distance of about 10 m (33 feet) from the source:
Average: 44 dB (based on approximately 7200 seconds of measurements)
Background noise outdoors around 34-37 dB
MAX: twice briefly at 75 dB within two hours
Cars usually around 50-60 dB Based on these reference values, it looks acceptable, but the apps only show a tendency. The actual values could be 10 dB higher or lower. My personal opinion regarding living comfort: I find it strange when you are completely acoustically isolated from the outside world and don’t hear any noise from passing cars at all.
Bauherr&-frau10 Oct 2018 20:36So, friends, we had a 2.5-hour meeting today with our independent building assessor, who will accompany us with 20 site visits. Absolutely convincing. We have decided on a monolithic Ytong wall construction, 36.5cm (14.4 inches) thick, using the ThermStrong PP4; bulk density 0.5; U-value 0.26; lambda: 0.10. She said this is more than sufficient, with a sound insulation rating of 51 dB and significantly more solid than the PP2. We are now very satisfied with this solution.
THANK YOU ALL FOR YOUR CONTRIBUTIONS TO THIS THREAD!
Greetings to my Ytong partner Nordlys!
THANK YOU ALL FOR YOUR CONTRIBUTIONS TO THIS THREAD!
Greetings to my Ytong partner Nordlys!
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