ᐅ Porous concrete bungalow – experiences? DIY beginner questions!
Created on: 24 Apr 2018 10:38
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GooSe_77
Hello everyone,
We have been considering building or buying a house for some time now, and we would like to move forward and start planning more concretely. However, I feel overwhelmed by all the information available online—or sometimes not available—and I would like to discuss my idea here with you.
I want to do as much as possible myself, I’m not necessarily unskilled, and currently, I have enough time.
The desired living space would be a bungalow with 2-3 bedrooms, one bathroom, and a large living area. Ceiling height about 3.5m (11.5 ft) with a slightly sloped green roof at 10°. If I find a simple software, I can try drawing it.
I can well imagine using aerated concrete blocks (porous concrete) for the walls, mainly because I think I could manage that myself. The roof structure would be made of glued laminated timber (glulam), spanning about 7m (23 ft) without support, so sturdy beams will be needed. The advantage is that no load-bearing walls will have to be built. The living area would be completely open without any internal walls. A structural engineer would have to calculate this, but can anyone here make a rough estimation?
I have a few questions about the aerated concrete: as far as I know, it is vapor-permeable. So, if it is clad with wood on the outside and plastered with clay on the inside, would that create a comfortable indoor climate?
Is it possible to achieve a KfW 55 energy standard with corresponding windows? What thickness would be required in that case?
Electric and plumbing installations will be embedded in the walls. Is there anything to consider here since the blocks are thinner—regarding structural stability and thermal insulation?
What would be a rough estimate of the material costs for heating (underfloor heating), water, and electricity installation? Just to get a rough idea…
Thanks a lot,
Bastian
We have been considering building or buying a house for some time now, and we would like to move forward and start planning more concretely. However, I feel overwhelmed by all the information available online—or sometimes not available—and I would like to discuss my idea here with you.
I want to do as much as possible myself, I’m not necessarily unskilled, and currently, I have enough time.
The desired living space would be a bungalow with 2-3 bedrooms, one bathroom, and a large living area. Ceiling height about 3.5m (11.5 ft) with a slightly sloped green roof at 10°. If I find a simple software, I can try drawing it.
I can well imagine using aerated concrete blocks (porous concrete) for the walls, mainly because I think I could manage that myself. The roof structure would be made of glued laminated timber (glulam), spanning about 7m (23 ft) without support, so sturdy beams will be needed. The advantage is that no load-bearing walls will have to be built. The living area would be completely open without any internal walls. A structural engineer would have to calculate this, but can anyone here make a rough estimation?
I have a few questions about the aerated concrete: as far as I know, it is vapor-permeable. So, if it is clad with wood on the outside and plastered with clay on the inside, would that create a comfortable indoor climate?
Is it possible to achieve a KfW 55 energy standard with corresponding windows? What thickness would be required in that case?
Electric and plumbing installations will be embedded in the walls. Is there anything to consider here since the blocks are thinner—regarding structural stability and thermal insulation?
What would be a rough estimate of the material costs for heating (underfloor heating), water, and electricity installation? Just to get a rough idea…
Thanks a lot,
Bastian
This would roughly represent the plot as well. The utility room would really be just for the heating system and water; storage is on the shelf in the crawl space above the bathroom/utility room/bathroom. The bedrooms are 3 x 4 m (10 x 13 ft), so not really small, and with a loft bed, the entire floor area is available... The bathroom with the shower could be a bit wider, but the building envelope known to me so far does not allow for that. However, the information was quite vague since no plan was available at the time of the discussion...
ares83 schrieb:
For me, none of this really works in practice. I also think: there’s no need to wake the chief physician just for this declaration of death.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
ares83 schrieb:
Your bathroom is hardly 6sqm (65 sq ft) large And therefore larger than our current bathroom and all the ones we have had so far
ares83 schrieb:
But then also a guest toilet where the shower is? Yes, eventually four people need to get ready in the morning.
ares83 schrieb:
The utility room is still much too small. Where will the heating system go? I based it on gas combi boilers, nothing else is supposed to go in there except maybe some laundry for drying.
ares83 schrieb:
A washing machine? It will still go into the built-in closet in the hallway.
ares83 schrieb:
For me, none of this would work in reality. For me, it works so far in my mind.
GooSe_77 schrieb:
For me, it's already in my thoughts Is it nice in your thoughts as well, or do you feel there's "room for improvement"?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
C
Caspar202028 Apr 2018 20:49Go down to the heating cellar / utility room where you currently live. There, you can see the amount of technical equipment and connections that need to be installed in one room. Also, just for the hot water tank and piping alone,
and the electrical main distribution / telecommunications connection, as well as other items, minimum clearances are required for certain installations.
The heating circuit manifold also needs to be accommodated somewhere.
The bathrooms won’t work as they are; simply because the space for wall-mounted installations was not considered. For example, the door even conflicts with the guest washbasin.
How thick are the walls, by the way? I hope they are not just 12cm (5 inches)?
It’s literally a crawl space; with standard ceiling height; ceiling and the required 3.50m (11.5 ft) ceiling height in the living room combined with a flat roof.
and the electrical main distribution / telecommunications connection, as well as other items, minimum clearances are required for certain installations.
The heating circuit manifold also needs to be accommodated somewhere.
The bathrooms won’t work as they are; simply because the space for wall-mounted installations was not considered. For example, the door even conflicts with the guest washbasin.
How thick are the walls, by the way? I hope they are not just 12cm (5 inches)?
GooSe_77 schrieb:
in the crawl space above the bathroom/utility room/bathroom.
It’s literally a crawl space; with standard ceiling height; ceiling and the required 3.50m (11.5 ft) ceiling height in the living room combined with a flat roof.
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