How to calculate in a schedule the external wall surface (for painting)?

[LucaLeo]

Hi everyone,

I’m new to Archicad and I can’t find a simple and correct way to get, in a wall schedule, the total external wall surface of the building in square meters.

My goal is to create a schedule that tells me how many external surfaces will need to be painted.

I have already tried several schedule fields (such as Wall Surface Area, External Face Surface Area Gross/Net), but the values I get don’t match:

• even in simple models (e.g. a 4×4 m room with a height of 2.70 m) the calculated surfaces don’t correspond to the expected mathematical value;

• in some cases the external surfaces are smaller, because Archicad subtracts the wall thickness at the intersections of corner walls;

 

Question:

👉 What is the correct method to make Archicad calculate the net external wall surface, with openings subtracted and internal parts excluded, so that the schedule gives me the real value of the surfaces to be painted?

Should I set up Zones, use a particular property, or is there a specific schedule field I am missing?

Sorry if this sounds like a basic question, but since I’m new to Archicad I can’t figure it out and it’s driving me crazy.

For clarity, I’m also attaching a simplified model (not my actual project, which is larger): I’m using it just for testing and to manually check the surface calculations.

Thanks a lot to anyone who can help!

Operating system used: Windows 11

 

[alemanda]

Hello,

you have to use the surface schedule in order to know the exact area of a surface.

If you try with the element schedule you can get the value "surface area on ouside face" or "inside face" but this value does not take into account penetrations due to PBM and SEOs ...