topic Re: How to show a notched rafter overhang? in Revit Architecture Forum

How to show a notched rafter overhang?

justinbourne.design — Fri, 21 Oct 2022 22:00:40 GMT

I have a 2x10 pitched roof supported by the exterior timber framed walls. According to the design it is going to get notched down past the exterior wall it rests on, so the overhang portion will only be 6" for a 6" fascia. This isn't uncommon but I have no idea how to show this in revit. I can easily detail this in a section view, but the model will still show a 2x10 overhang which would obv look off with the 6" fascia board that doesnt cover it all.

Re: How to show a notched rafter overhang?

ToanDN — Fri, 21 Oct 2022 22:18:22 GMT

You can notch the rafters using Opening by Face tool, or cut them using Reference Planes (only single cut).

If you only need to notch at the plate:

Re: How to show a notched rafter overhang?

justinbourne.design — Fri, 21 Oct 2022 22:20:27 GMT

needs to be more like this, cut down after the plate so the overhang end of the 2x10 is more like a 2x6:

Re: How to show a notched rafter overhang?

ToanDN — Fri, 21 Oct 2022 22:24:55 GMT

@justinbourne.design wrote:

needs to be more like this, cut down after the plate so the overhang end of the 2x10 is more like a 2x6:

See edited post.

Re: How to show a notched rafter overhang?

justinbourne.design — Fri, 21 Oct 2022 22:28:12 GMT

the roof is hipped, so I cant really see the end of it anywhere like in your view. And it doesnt seem to want to let me do it in a section view. What am I doing wrong?

Re: How to show a notched rafter overhang?

ToanDN — Fri, 21 Oct 2022 22:37:15 GMT

@justinbourne.design wrote:

the roof is hipped, so I cant really see the end of it anywhere like in your view. And it doesnt seem to want to let me do it in a section view. What am I doing wrong?

You can do it in a 3D view. Hide the roof so you can see the rafter to make it easier.

Re: How to show a notched rafter overhang?

ToanDN — Fri, 21 Oct 2022 23:04:13 GMT

Anther way if you want to cut a bunch of rafters at once then model a mass in place, join with rafters, then hide the mass.

Re: How to show a notched rafter overhang?

barthbradley — Fri, 21 Oct 2022 23:31:17 GMT

@justinbourne.design wrote:
I have a 2x10 pitched roof supported by the exterior timber framed walls. According to the design it is going to get notched down past the exterior wall it rests on, so the overhang portion will only be 6" for a 6" fascia. This isn't uncommon but I have no idea how to show this in revit. I can easily detail this in a section view, but the model will still show a 2x10 overhang which would obv look off with the 6" fascia board that doesnt cover it all.

Almost sounds like you are describing this condition with a two cut plumb.

Re: How to show a notched rafter overhang?

justinbourne.design — Tue, 01 Nov 2022 00:30:13 GMT

Had to deal with other tasks but I'm back on this issue. So the roof isnt actually made up of modeled rafters, just a regular revit roof family. Today I was trying to tackle this again using a void sweep. I measured the exact profile I needed to cut and made the profile family. I selected the roof edge for the path and everything looks good but I keep getting this error:

"Some Void Forms of this family do not cut anything and will be deleted. To make a Void Form cut something else use the Cut Geometry tool."

This feels like this should work, the void form is completely in the roof overhang, so I'm not sure what the problem is.

Re: How to show a notched rafter overhang?

ToanDN — Tue, 01 Nov 2022 00:33:13 GMT

@justinbourne.design wrote:

I keep getting this error:

"Some Void Forms of this family do not cut anything and will be deleted. To make a Void Form cut something else use the Cut Geometry tool."

Cut geometry the void to the roof while you are still in the in-place model editor.