I would like to design and build a new zero energy house.
For this I need to be able to create floors (and ceilings and walls) containing layers for floor (and wall) heating.

Does anyone know examples of such floors?
How can I draw them myself?

I would like to be able to draw a cavity wall and also add cavity filling (cavity wall isolation).

Obvously I can simulate a cavity wall drawing several walls, but this doesn't cope with windows and doors etc. (I think).
So I would like to know if such kind of wall exists and can be used as a ...

Thanks for explanation, here is the object I want to use in Sweethome

http://www.mediafire.com/view/u3fevl9za ... straat.jpg

I would like to add a picture to a new thread I want totart in order to show what I'm asking. How can i do that?

Does a solar module exist already?

Actually I'm looking for 3 kind of things :
a) a solarmodule
b) a solarmodule on a frame to be used on a flat roof (would be best if the tilt angle of the module could be adjusted)
c) possibility of defining several modules assembled next and/or behind each other ...

I would like to use an elevator , but can't find one.
Does anybody know about a model for an elevator?

As a newbie I'm trying to create a roof and found a manual how to do it.
But that requires the CopyAsNewFuniture plugin.
Unfortunally I don't find it.

BTW Basically a roof (or part of it) just is a 'floor' positioned under an angel and something MANY people need. So I wonder why everyone should ...