Atemp, energy declaration

[Posselosse]

I have tried to read up on the energy declaration and want to double-check if I have understood it correctly.

If I build 100 sqm of living space in a single-story house with a ridge roof, it gives an Atemp of 100 sqm.
Let's say I instead build 1.5 stories with an unfurnished insulated heated attic. As I understand it, the Atemp now increases to 200 sqm, even though the living space has not increased!?

 

[Dilato]

I have tried to read up on the energy declaration and want to double-check if I understood it correctly.

If I build 100 sqm living area in one floor with a roof at the peak, it gives an Atemp of 100 sqm.
Let's say I instead build 1.5 floors with an unfinished insulated heated attic. What I understand is that the Atemp now increases to 200 sqm, even if the living area hasn't increased!?

Yes, that's how it is (all areas heated to at least 10 degrees are included).

Atemp broadly describes the area of the floors that are heated and located within the building's climate shell. There is no limitation of this area concerning the ceiling height in the space.

Atemp = The sum of the internal area of each floor, attic, and basement that is heated to more than 10 °C.
Areas occupied by interior walls, openings for stairs, shafts, and such are included.

Whether the attic is insulated or unfinished doesn't matter, it's only if it is heated to at least 10 degrees that it is included in Atemp.