ArchiCAD Tutorial #64: Mitering Roofs in ARCHICAD

[@mariansdraila]

Oh man, I've learned this technique many years ago when I was in school but I couldn't remember it soon after and I could never find it online. Thanks for the tip!

[@jensonx9248]

You only have to select one roof elements and select the opposite one with cmd/ctrl, saves you you the step of selecting an additional roof element.

[@Shoegnome]

Absolutely correct! I learned it the way i do it years ago and never knew there was an alternate solution. Thanks for sharing.

[@ostneek]

Cool tip! Thank you very much!

[@Stafref]

Lol, usign AC for years and didn't expect that...

[@bividesign]

How would you solve the eaves, when you have two different pitch on the hip roof and that you wish to have them at a specific overhang? Thanks!

[@Shoegnome]

That's a design problem, not an Archicad problem. The miter / geometry is what it is. Miter the two roofs, move the corner of the overhang to be equal distance at the corner of the building and then see what that does to the rest of your roof form. The miter won't be 45 degrees and won't cross the building line at the corner of the walls either. In general on old buildings with two roof slopes the overhang isn't equal or there's some other construction technique used to solve the problem. It's not one Archicad can make work on its own.

[@bividesign]

@@ShoegnomeThanks, I will explore your suggestion! Exact, this is for an existing building. Any chance you have a visual tutorial on the matter?

[@Shoegnome]

I don't. If you're matching an existing building then definitely start from the eave and work backwards. Figure out the fascia and then let the roof be what it needs to be. It'll be weirder than you expect.

[@bividesign]

Hello back, I was able to make it work. My ridge line was about 36.8deg for a 6:12 and 8:12 hip roof. I placed the reference line of the higher pitch roof to the new ridge line. The lower pitch roof (6:12) reference line stayed at the structure edge of the wall and simply mitered the roof planes to the other roof (8:12).

[@Shoegnome]

@@bividesignthat's great!

[@ayan13yxq]

great tips！！！