ᐅ Using the Attic Space in a New Urban Villa

This is a "carpenter's roof." What was offered to you is what I know as a nail truss roof.

Masipulami schrieb:
Insulated the sloping parts, covered with panels, and filled with filler.

I have a few questions about this, if you don’t mind: How (and with what) did you insulate the slopes? And what about the ceiling to the attic (from the upper floor perspective) – is that insulated in your case or not? Also, approximately how much did the insulation for the slopes cost? (Feel free to send a private message.)

Our current issue is that we might want to insulate the roof slopes as well to install the mechanical ventilation system there, so that the utility room has more space. We only recently decided this; the construction company’s offer was based on the “old” version with insulation on the upper floor ceiling, which is why I have all these questions.

Thanks in advance!

I would need to check exactly which insulation was used under the sloped ceilings. However, it was quite thick and has already performed very well during the summer.

The attic ceiling is made of concrete. Since the insulation is placed under the sloped ceilings (warm roof construction), we did not add additional insulation on the attic floor.

I can’t tell you the exact cost anymore. We basically included it together with the timber roof structure in the contract. From what I remember, the extra cost wasn’t very high, so we didn’t hesitate long to choose this option.

This is the only photo I currently have on hand (taken from the upper floor through the hatch) before the panels were installed on top (insulation etc. already in place):

Thank you, I think we will proceed like this now. The thickness will in any case have to be calculated by the energy consultant to meet KfW 70 standards.

And how are you planning to handle the staircase?

Masipulami schrieb:
We have an 11x11 meter (36x36 feet) city villa with a 28° roof pitch, and we insulated the sloping roof sections, covered them with board material, and applied filler.

There is plenty of space upstairs.

Here’s a photo of one side:

Later, we might install roof windows and partially convert the space into living areas.

@Passivhaus: The hole looks smaller than it actually is. If the room is finished later on, a compact staircase will be installed from the upper floor hallway. This was planned from the very beginning.