Trim Element to Roof shows the element geometry...

[Gisele]

How to prevent showing the wall cut when using the Trim Element to Roof?

 

[Barry Kelly · Accepted solution]

The building material strength for the top roof surface needs to be stronger than the building material strengths you use for the wall.

Barry.

[Gisele]

Thank you, Barry!

[Zdenko]

where in the "help module" is this explained or what do i search for? when i look at the building materials interface i don't see the roof that i used and trying to eliminate the wall peeking through? i tried to change the numbers in the layer interface to increase roof from 1 to 5 and wall partitions from 5 to 1 but no changes.

[Barry Kelly · Accepted solution]

Select the roof, right mouse click and choose the option to 'edit selected composite'.

This will show you the building materials you have used in that composite.

Or even better, select a roof plane and a wall and open the building material settings dialogue.

You can then arrange the list by building materials used (they will be highlighted) and you can compare the strengths of all of them.

The one used for the top surface of the roof need to be stronger than those used in the walls.

When you 'trim', the shape and position of the elements will form the overall trim and the stronger building materials will cut the weaker ones.

Barry.

[mthd]

Hey @Barry Kelly, shouldn’t changing the crop zone to the underside of the roof fix this problem before changing material strengths ?

[Barry Kelly]

When you crop or trim, you can choose to keep the wall above or below the roof.

But I am pretty sure in either case the intersection between the wall and roof is still there and building material strengths come into play.

I think only Solid Element Operations will truly cut the wall at the top or bottom surface of the roof.

Barry.

[mthd · Accepted solution]

Hi @Zdenko to help us all understand how to do this operation with various methods and the resultant effects, please watch this excellent video tutorial. For the @Barry Kelly material strength method please watch the video to the end. Enjoy !

https://www.youtube.com/watch?v=K7OZ_fU7eGA

[Gisele]

Great tutorial; I shared it with colleagues.

[Zdenko]

WOW! thanks everyone and will spend time today going through everything again!!!