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!
I live in a monolithic Ytong house with just plaster. That works fine—the house stays warm in winter, cool in summer, and feels comfortable. I don’t understand what’s supposed to be cheap or bad about this material. It’s a solid wall construction, period! The only downside is the sound insulation, since Ytong has a lot of air inside. For better soundproofing, you would need to use sand-lime bricks, but then you also need insulation because they don’t retain heat well. There’s always a trade-off. Poroton bricks aren’t good without insulation either, but they do offer good soundproofing. And those hollow bricks with polystyrene in the middle—good luck if you want to screw anything into them.
Bauherr&-frau20 Aug 2018 20:37Thank you for the contributions – it’s actually a pity that sound insulation and excellent thermal insulation can’t be achieved together. If we decide to stay with Ytong, is it still possible to implement measures to improve soundproofing?
We currently live in a timber frame house built in early 2017, with three apartments. To be honest, the sound insulation is terrible (investment property), and there are huge double-glazed window fronts that practically let all noise through. Sometimes it feels like we’re sleeping on the street.
Is Ytong really that bad for sound insulation? If it’s only as mediocre as the timber frame construction we have now, the decision becomes easy.
The website often emphasizes the ecological and healthy indoor climate. That means: "Aerated concrete absorbs only a small amount of water and stores this moisture only briefly within the material. When the relative humidity of the air decreases, the moisture is released again – this naturally and automatically regulates the indoor climate."
In addition: "Thanks to its porous structure, Ytong has a high ‘internal damping.’ When soundproofed properly through careful planning and execution, a Ytong house provides effective protection against external noise."
Is this all nonsense? It’s driving us crazy – as I said, I love this forum!
We currently live in a timber frame house built in early 2017, with three apartments. To be honest, the sound insulation is terrible (investment property), and there are huge double-glazed window fronts that practically let all noise through. Sometimes it feels like we’re sleeping on the street.
Is Ytong really that bad for sound insulation? If it’s only as mediocre as the timber frame construction we have now, the decision becomes easy.
The website often emphasizes the ecological and healthy indoor climate. That means: "Aerated concrete absorbs only a small amount of water and stores this moisture only briefly within the material. When the relative humidity of the air decreases, the moisture is released again – this naturally and automatically regulates the indoor climate."
In addition: "Thanks to its porous structure, Ytong has a high ‘internal damping.’ When soundproofed properly through careful planning and execution, a Ytong house provides effective protection against external noise."
Is this all nonsense? It’s driving us crazy – as I said, I love this forum!
If you want Ytong thermal insulation combined with good soundproofing, you need to use 24cm (9.5 inches) Ytong blocks, then mineral wool, followed by facing brick. The facing brick is solid, the mineral wool insulates, the Ytong insulates as well—warm, airtight, quiet, just not exactly cheap. That’s it.
Similar topics