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!
F
french_fry27 Jan 2021 07:37I want to bring this thread back up because I am currently facing a similar question. The discussion here has been very helpful.
If the original poster happens to read this: Did you end up building with PP4? Is the house maybe already standing, and if so, what has your experience been? Thanks in advance!
If the original poster happens to read this: Did you end up building with PP4? Is the house maybe already standing, and if so, what has your experience been? Thanks in advance!
Bauherr&-frau27 Jan 2021 07:49Good morning! Yes, the house is built, we have moved in, and we used 36 cm (14 inches) PP2 Y-Tong blocks, with some load-bearing interior walls made of PP04. Overall, I have to admit that when noise enters the house, the windows are the weak point. I recommend using SSK IV windows — they help a lot (we have them in the living room, bedroom, and children’s room). If I were you, I would skip the PP04 blocks because they also have poorer insulation values. What is your surrounding area like? What are you currently planning? For us, there is a village main street with cobblestone pavement and a 30 km/h (about 19 mph) one-way zone nearby. Traffic is very light, and at night, there is no traffic at all. You don’t hear anything from the asphalt road.
I also did a test and held my ear directly against the wall facing the cobblestone street (the house is about 5 m (16 feet) away). If you concentrate, you can hear it; it also depends on the vehicle. But if you sit 1 m (3 feet) away, it is not noticeable. So that’s something you might overthink.
So far, we are satisfied with the blocks, including their thermal insulation performance. Our indoor humidity levels were very good after a short time. Alternatively, the T9 from Poroton is also a good option. If I were to build again, I might choose a calcium silicate brick with mineral insulation and cladding bricks. In the end, though, that is significantly more expensive, and believe me: once everything is finished, you won’t think about it anymore.
The 36 cm (14 inches) PP02 block is not as bad as some make it out to be. The sound insulation value is not terrible. Of course, calcium silicate brick is better in that respect. But in terms of cost efficiency, aerated concrete (porous concrete) is hard to beat.
I also did a test and held my ear directly against the wall facing the cobblestone street (the house is about 5 m (16 feet) away). If you concentrate, you can hear it; it also depends on the vehicle. But if you sit 1 m (3 feet) away, it is not noticeable. So that’s something you might overthink.
So far, we are satisfied with the blocks, including their thermal insulation performance. Our indoor humidity levels were very good after a short time. Alternatively, the T9 from Poroton is also a good option. If I were to build again, I might choose a calcium silicate brick with mineral insulation and cladding bricks. In the end, though, that is significantly more expensive, and believe me: once everything is finished, you won’t think about it anymore.
The 36 cm (14 inches) PP02 block is not as bad as some make it out to be. The sound insulation value is not terrible. Of course, calcium silicate brick is better in that respect. But in terms of cost efficiency, aerated concrete (porous concrete) is hard to beat.
F
french_fry27 Jan 2021 11:47Thank you for your quick response! That sounds good, so we will request windows with SSK IV from our builder.
I have always rented in the city and mainly want to build a house to find some peace and quiet. Naively, I thought that every solid brick house would be quiet, but as I’ve learned, this is no longer entirely true due to all the energy standards. Our builder also offered us Ytong 36.5 PP2. In our current apartment (we have lived here for 12 years), we can hear quite a lot from the neighbors (well, actually we hear everything 😉 which will completely disappear in a house and already be a huge added value.
We have a rear plot, so we don’t hear the low-traffic street. Unfortunately, because of the rear location, the neighbors are quite close and of course more than with a front plot. For example, the neighbor on the left is only 6 meters (20 feet) away, has a pool, and enjoys riding a motorcycle. The neighbor in front of us is also quite close. In total, we have three neighboring houses just a stone’s throw away, and two more fairly close.
We are planning a house with a pitched roof and want to install a central mechanical ventilation system with heat recovery so we can keep the windows closed. It would be great if I could not hear a neighbor’s garden party or the sweet grandchildren next door through a closed window on the ground floor (the upper floor will be different due to the pitched roof). Ideally, these sounds would not be audible or, if they are, only very quietly. We are fairly quiet people ourselves; we rarely have the TV or music on and read a lot. So it would be nice if the house were reasonably quiet.
I have always rented in the city and mainly want to build a house to find some peace and quiet. Naively, I thought that every solid brick house would be quiet, but as I’ve learned, this is no longer entirely true due to all the energy standards. Our builder also offered us Ytong 36.5 PP2. In our current apartment (we have lived here for 12 years), we can hear quite a lot from the neighbors (well, actually we hear everything 😉 which will completely disappear in a house and already be a huge added value.
We have a rear plot, so we don’t hear the low-traffic street. Unfortunately, because of the rear location, the neighbors are quite close and of course more than with a front plot. For example, the neighbor on the left is only 6 meters (20 feet) away, has a pool, and enjoys riding a motorcycle. The neighbor in front of us is also quite close. In total, we have three neighboring houses just a stone’s throw away, and two more fairly close.
We are planning a house with a pitched roof and want to install a central mechanical ventilation system with heat recovery so we can keep the windows closed. It would be great if I could not hear a neighbor’s garden party or the sweet grandchildren next door through a closed window on the ground floor (the upper floor will be different due to the pitched roof). Ideally, these sounds would not be audible or, if they are, only very quietly. We are fairly quiet people ourselves; we rarely have the TV or music on and read a lot. So it would be nice if the house were reasonably quiet.
Bauherr&-frau27 Jan 2021 11:53With SSK IV, you can be assured of peace of mind. Really great, trust me. The additional cost is minimal compared to calcium silicate blocks with external thermal insulation composite systems (ETICS). For us, it was about 60-70 € per panel more.
french_fry schrieb:
Naively, I thought every solid-built house would be quiet, but as I’ve learned, that’s not really the case anymore with all the energy standards we have now. [...] In our current apartment [...] we actually hear quite a lot from the neighbors (well, what am I saying, we really hear everything). Monolithic construction isn’t necessarily “louder” than before; with external thermal insulation composite systems (ETICS) it might be. However, when you have a detached single-family house, you don’t have impact sound transmissions from stairs or other elements anchored to shared walls.
french_fry schrieb:
It would be great if I couldn’t hear a neighbor’s garden party or the cute grandchildren from next door through a closed window on the ground floor (the upper floor is different because of the pitched roof), or at least only hear them very quietly. Anyone who tries to soundproof children’s laughter is only to blame themselves. The saying “Everyone is the architect of their own fortune” can definitely apply to joylessness as well.
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french_fry27 Jan 2021 14:16Bauherr&-frau schrieb:
With SSK IV, you’re set for quietness. Really great, trust me. The extra cost is nothing compared to sand-lime brick with external thermal insulation composite system (ETICS). For us, it was about 60–70 € per pane more. Thank you, we’ll do that!
Those who soundproof children's laughter only have themselves to blame. The saying “Everyone is the architect of their own fortune” can certainly also apply to lack of joy. I don’t think it’s necessary to get personal here. It was just an example and shouldn’t be taken too literally.
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