ᐅ Modernist Concrete Villa with Cavity Wall Insulation – Experiences
Created on: 11 Sep 2018 07:32
R
rick2018
Hello everyone,
I just wanted to briefly introduce myself and say thank you.
For about a year and a half, I have been a silent reader here to gather inspiration and especially to gain more knowledge about construction technology.
Now a bit about me:
After more than a year of searching for a plot of land, I was able to purchase one from a developer who couldn’t move forward quickly with his plans.
So we found our dream plot (good location, 2500 m² (0.62 acres), slight slope, underground private spring that we have to preserve and are allowed to use).
There was an old house on the property, which we have since demolished.
There is no zoning plan, so §34 applies. During an initial informal inquiry at the building authority, almost everything we planned was rejected.
So we submitted an official preliminary building inquiry, involved the right people, and had lengthy discussions. In the end, we received a positive decision.
Therefore, there is nothing standing in the way of the building permit. The building permit should be granted within the next few weeks as there are no changes from the preliminary inquiry.
My wife (37) and I (36) want to build a Bauhaus-style villa in southern Baden-Württemberg.
It will be constructed from concrete (with core insulation) or in combination with insulated precast elements.
A lot of glass (full-glass system), textile shading, KNX, fast network both wired and wireless, strong mechanical ventilation with additional cooling coils, stainless steel pool, large cistern, and more.
The electrical planning must be 100% spot on since it’s almost impossible to make changes afterward.
Since I am friends with an architect from a larger firm, it was clear which route we would take. Such a house can basically only be realized with an architect.
I also personally know the electrician and KNX system integrator, as well as the owners and work approach of the heating, plumbing, and ventilation companies involved.
Some trades have already been contracted, and part of the equipment has already been ordered.
I’m really looking forward to getting started and to the final result. The goal is to move in by the end of 2019.
Once again, many thanks for the information I have received from you so far.
If you have any questions, just let me know.
Attached is the design, though not the final version. There have been a few minor changes.
Greetings from Swabia
I just wanted to briefly introduce myself and say thank you.
For about a year and a half, I have been a silent reader here to gather inspiration and especially to gain more knowledge about construction technology.
Now a bit about me:
After more than a year of searching for a plot of land, I was able to purchase one from a developer who couldn’t move forward quickly with his plans.
So we found our dream plot (good location, 2500 m² (0.62 acres), slight slope, underground private spring that we have to preserve and are allowed to use).
There was an old house on the property, which we have since demolished.
There is no zoning plan, so §34 applies. During an initial informal inquiry at the building authority, almost everything we planned was rejected.
So we submitted an official preliminary building inquiry, involved the right people, and had lengthy discussions. In the end, we received a positive decision.
Therefore, there is nothing standing in the way of the building permit. The building permit should be granted within the next few weeks as there are no changes from the preliminary inquiry.
My wife (37) and I (36) want to build a Bauhaus-style villa in southern Baden-Württemberg.
It will be constructed from concrete (with core insulation) or in combination with insulated precast elements.
A lot of glass (full-glass system), textile shading, KNX, fast network both wired and wireless, strong mechanical ventilation with additional cooling coils, stainless steel pool, large cistern, and more.
The electrical planning must be 100% spot on since it’s almost impossible to make changes afterward.
Since I am friends with an architect from a larger firm, it was clear which route we would take. Such a house can basically only be realized with an architect.
I also personally know the electrician and KNX system integrator, as well as the owners and work approach of the heating, plumbing, and ventilation companies involved.
Some trades have already been contracted, and part of the equipment has already been ordered.
I’m really looking forward to getting started and to the final result. The goal is to move in by the end of 2019.
Once again, many thanks for the information I have received from you so far.
If you have any questions, just let me know.
Attached is the design, though not the final version. There have been a few minor changes.
Greetings from Swabia
rick2018 schrieb:
Even double layers of Baudertec? I thought that’s not usually done.No, just a single layer. All work done by ourselves.
Hmm, I consider that normal and even necessary since the top layer serves as the actual waterproofing layer. Without vegetation, it is also the layer exposed to the weather.
The layers below seem a bit excessive to me. In addition to the emergency waterproofing, an additional sealing primer, and also a membrane between the insulation and the tapered insulation? For what purpose? Is the insulation sensitive to water, requiring extra protection against water infiltration?
Especially since, as you mentioned, waterproof concrete was used. The only real issue is the penetrations. The roof itself will not allow water to pass through the surface for the next 100 years.
Some even pour the parapet in one step together with the slab to avoid any joint that could cause problems.
Two rules for flat roofs:
1) never use wood
2) never use mineral wool insulation.
The layers below seem a bit excessive to me. In addition to the emergency waterproofing, an additional sealing primer, and also a membrane between the insulation and the tapered insulation? For what purpose? Is the insulation sensitive to water, requiring extra protection against water infiltration?
Especially since, as you mentioned, waterproof concrete was used. The only real issue is the penetrations. The roof itself will not allow water to pass through the surface for the next 100 years.
Some even pour the parapet in one step together with the slab to avoid any joint that could cause problems.
Two rules for flat roofs:
1) never use wood
2) never use mineral wool insulation.
rick2018 schrieb:
Yes, the layer before the final covering. Bauder itself specifies only one layer before the final covering. So it doesn’t always seem to be applied twice.The typical structure is as follows:- Primer coat
- Vapor barrier membrane
- Insulation
- Cold self-adhesive membrane (here the KSA)
- Bitumen torch-on membrane
Why @rick2018 applied the KSA layer twice, I have no idea.
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