Honigkuchen
2009-02-17 14:10:15
- #1
Hello everyone,
we're entering the hot phase - I've looked up architects and will call them this week; but of course I have to present our rough idea to the good people for a cost estimate.
- A question for you:
I had an idea while planning, and I would like to ask the specialists among you if it is a good one.
We have a slightly sloping plot (height difference from the street at the top to the end of the building area at the bottom (i.e. down towards the garden): approx. 3-4 meters.
The lowest floor would therefore be at garden level, the floor above would be at street level, so that would be the ground floor, and above that there would be an expanded attic floor (or prepared for expansion).
It is to be a low-energy house (something between a passive house and KfW40).
Since we won't actually use the lowest floor for living in the winter anyway (except for guests), I wanted to ask you if you can approve my idea to construct the garden floor as a thermally separated - "concrete block" that, although it basically complies with the new energy saving ordinance, and can also be heated cheaply, e.g. by underfloor heating, the expensive thermal envelope (wall) which will be about 50 cm thick, should only be the ground floor and the attic floor.
Or is that a contradiction in itself?
So, if I have underfloor heating operated by the same system in ALL floors, is it still thermally separated?!
I have read that lightweight concrete also has good thermal insulation properties, so if a guest ever stayed overnight in the garden floor, they wouldn't freeze, right?
Furthermore, REAL basements, that is those which lie completely underground, which our garden floor would only do partly in the slope, are usually concrete basements, as far as I have read?
So concrete can't be that bad if you later partially turn it into a residential basement, right?
There is only seepage water in the slope, no groundwater, so no pressing water; it is said to be a very clayey silt, so water-retentive, hardly any infiltration possibility.
It would be great if you could share your experiences with me.
Because building a solid low-energy house is certainly not cheap, and such precast concrete parts or even complete precast concrete basements are said to be very inexpensive in comparison?
Best regards and thanks in advance,
Honigkuchen
we're entering the hot phase - I've looked up architects and will call them this week; but of course I have to present our rough idea to the good people for a cost estimate.
- A question for you:
I had an idea while planning, and I would like to ask the specialists among you if it is a good one.
We have a slightly sloping plot (height difference from the street at the top to the end of the building area at the bottom (i.e. down towards the garden): approx. 3-4 meters.
The lowest floor would therefore be at garden level, the floor above would be at street level, so that would be the ground floor, and above that there would be an expanded attic floor (or prepared for expansion).
It is to be a low-energy house (something between a passive house and KfW40).
Since we won't actually use the lowest floor for living in the winter anyway (except for guests), I wanted to ask you if you can approve my idea to construct the garden floor as a thermally separated - "concrete block" that, although it basically complies with the new energy saving ordinance, and can also be heated cheaply, e.g. by underfloor heating, the expensive thermal envelope (wall) which will be about 50 cm thick, should only be the ground floor and the attic floor.
Or is that a contradiction in itself?
So, if I have underfloor heating operated by the same system in ALL floors, is it still thermally separated?!
I have read that lightweight concrete also has good thermal insulation properties, so if a guest ever stayed overnight in the garden floor, they wouldn't freeze, right?
Furthermore, REAL basements, that is those which lie completely underground, which our garden floor would only do partly in the slope, are usually concrete basements, as far as I have read?
So concrete can't be that bad if you later partially turn it into a residential basement, right?
There is only seepage water in the slope, no groundwater, so no pressing water; it is said to be a very clayey silt, so water-retentive, hardly any infiltration possibility.
It would be great if you could share your experiences with me.
Because building a solid low-energy house is certainly not cheap, and such precast concrete parts or even complete precast concrete basements are said to be very inexpensive in comparison?
Best regards and thanks in advance,
Honigkuchen