Calculating Facade areas - concave corners error

[JanKocjanOBA]

Dear community,

I have a large housing project with many, many corners.

I'm trying to calcualte the exact facade area of my building which is really important for pricing as well as building code rules relating to the facade area percentages.

I've started a little test file where I figured out that facade areas are not calculated as one would expect. When I make a filled region to see what the facade area actually is, that does not correspond to the Revit schedule calculation.

I've managed to get correct scheduling out for convex corners with mitter joints, but I'm unable to get a correct calculation for convex corners, no matter what kind of join I use.

Does anyone have any thoughts or pointers that could help me figure out exactly the amount of facade I have in my project, please see attached floor plan and Revit test file.

Thank you for your help,

Best regards,

Jan

  

[ToanDN]

Paint the walls with unique materials,  create a material takeoff schedule and filter by the materials.

[JanKocjanOBA]

I have tried loading on different materials, on different surfaces and you can also see a material takeoff schedule in my snip, those suggestions did not solve my problem, the material amount is stil calculated wrongly when it comes to concave corners.

[ToanDN]

Did you paint the surfaces?

[JanKocjanOBA]

No, but you're asking a lot for a 17.000 m2 facade 🙂

Then I might as well disjoin all walls that meet in corners and build in separate infills that are not scheduled.

[ToanDN]

You can always create parts and schedule parts instead.

And yes, you would have to spend more time and efforts to work in a project with 17,000m2 facade than a doghouse project with 4m2 facade because you are paid more.