how does revit calculate the area of walls

[Max Lloyd]

Hi all, this sounds like a stupid question:

Revit reports the volumes of walls, as well as areas. I can understand how it reports volumes, but am unsure how it reports areas. Presumably it is a surface area, but I don't think its all the surface areas combined, but am unsure.

Can someone clarify. (this is all related to the earlier tiling question in case you hadn't guessed!)

Thanks.

[Max Lloyd]

Hmmm, answering my own question I think, but it seems to be the centreline length of the wall x height.

This will vary then depending on the wall junction detail (ie: mitred, butt joint etc.)

Check out the attached file. If the area was reporting the area of the inner face, it would be reporting 10sq.m (height is 1m x (5 x 2)) Or if it was the outside, it would be 1m x (5.35 x 2).

Take a look at the area schedule. This is using a mitred wall join.

Probably useless but interesting to know! ;)

[Roger Evans]

I believe it is the centreline ... so you can't rely on its accuracy for brick external or internal plaster / tiling for that matter ...

What happens with roofs?