ᐅ Is it possible to build a foundation for a single-family house without concrete and earthworks?
Created on: 28 Dec 2017 00:06
H
hanna-salbei
Dear Home Builders,
We are planning to build a small single-family house and, if possible, want to avoid earthworks and a cast concrete slab. The house is designed so that it can potentially be dismantled and relocated. Is there a way to build directly on the ground without doing earthworks— for example, instead of replacing a soil layer with frost protection material, simply compacting foam glass gravel to create a level surface, placing concrete slabs under the exterior walls, or something similar? In my research so far, I have not found any solutions without a cast concrete slab.
The soil is quite sandy with groundwater at a depth of 3 meters (10 feet).
Built-up area is 5 by 10 meters (16 by 33 feet).
No basement; the ground floor has constructed beams (KVH, nail plates, glass wool insulation WLG035) 50 centimeters (20 inches) high, spaced at 62.5 centimeters (25 inches) on center.
Greetings from Berlin
We are planning to build a small single-family house and, if possible, want to avoid earthworks and a cast concrete slab. The house is designed so that it can potentially be dismantled and relocated. Is there a way to build directly on the ground without doing earthworks— for example, instead of replacing a soil layer with frost protection material, simply compacting foam glass gravel to create a level surface, placing concrete slabs under the exterior walls, or something similar? In my research so far, I have not found any solutions without a cast concrete slab.
The soil is quite sandy with groundwater at a depth of 3 meters (10 feet).
Built-up area is 5 by 10 meters (16 by 33 feet).
No basement; the ground floor has constructed beams (KVH, nail plates, glass wool insulation WLG035) 50 centimeters (20 inches) high, spaced at 62.5 centimeters (25 inches) on center.
Greetings from Berlin
tomtom79 schrieb:
How are Schwörerhaus mobile homes, for example, founded?Flying spaces are not permitted everywhere.
For mobile homes, there are designated plots, usually leased and located close to nature. On these, it is certainly allowed to build a wooden weekend house without a concrete slab foundation.
Common sense prevents me from considering building a house—according to energy-saving regulations and intended for full-time living—directly on sand or... [emoji23] old waste/hazardous waste -> tires.
hanna-Salbei schrieb:
It would be great if it didn’t turn into mixed construction waste at the end of life The topic of demolition and construction waste recycling certainly still has a lot of potential.
hanna-Salbei schrieb:
- We would love not to seal the surfaces. Oh, but I wouldn’t want uncontrolled infiltration under my house.
hanna-Salbei schrieb:
simply compact foam glass gravel into a level surface, But that is not supposed to be eco-friendly, right?
I question both the energy required for production and the chemical stability of the final product with regard to no pollutant release into the water.
hanna-Salbei schrieb:
I assume the soil is already stiff enough with the 45cm (18 inches) high beams, Bending and torsional stiffness, yes, but what about load transfer?
Alex85 schrieb:
Ecologically correct would be not to build new at all, but to purchase an existing property. Eldea schrieb:
I also believe that buying an existing property of the right size is the most ecological option. I expect it may still take ten years before this trend develops, but then it will be equally considered to plan on an existing foundation or basement as on a cellar or slab foundation. Especially with prefabricated houses built before 1970, I can imagine that partial demolition down to the top edge of the foundation slab (top of concrete floor slab) might be considered.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
11ant schrieb:
Although I assume it may still take up to ten years for this trend to develop, I believe that alongside basements or slab foundations, planning on an existing basement will be considered equally. Especially with prefabricated houses built before 1970, I can imagine that a partial demolition down to top of concrete floor (OKKD) might be considered.It is actually quite common here to build on the OKKD.
haydee schrieb:
It is not uncommon here at all to build on top of an OKKD. What are the main reasons for this: is it more about the desire for a completely different layout, or are there hazardous materials in the part being demolished?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Old houses, really old ones, like ours.
At a certain point, demolition and rebuilding is more cost-effective than renovation.
Town center.
Demolition including basement, building setback distances must be observed. If the basement remains, the original house height (1.5 or 2 stories), roof shape, and orientation stay the same, you can rebuild in the exact same place regardless of setbacks.
Since the town centers in our area suffer from vacancy, someone has now managed to get approval to build a modern Bauhaus-style house on an old basement.
Regardless of that, why demolish and rebuild a basement if the old basement still has good structural integrity?
Our municipality has not developed any new building zones for 15 years and has offered incentives for redevelopment within the town center.
At a certain point, demolition and rebuilding is more cost-effective than renovation.
Town center.
Demolition including basement, building setback distances must be observed. If the basement remains, the original house height (1.5 or 2 stories), roof shape, and orientation stay the same, you can rebuild in the exact same place regardless of setbacks.
Since the town centers in our area suffer from vacancy, someone has now managed to get approval to build a modern Bauhaus-style house on an old basement.
Regardless of that, why demolish and rebuild a basement if the old basement still has good structural integrity?
Our municipality has not developed any new building zones for 15 years and has offered incentives for redevelopment within the town center.
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