How to get insulation hatch to 45 degree angle in roof slab section view? +Getting rid of insulation

[Anonymous]

Hi

I'm trying to model an insulation to pitched roof and I have trouble getting insulation hatch right in section view. How I can make it so hatch goes paraller with roof?

[Barry Kelly · Accepted solution]

If that insulation is a separate "Basic" roof then that is what you will get.
The fill will not follow the roof slope.
But if you create a 'Composite' for the roof (it can be just the one skin or multiple skins), then in the building material that you use in the composite, you can set the fill orientation to be either project origin, element origin or better fit to skin.
Barry.

[Anonymous]

So simple. Thank you!

Another question has arised. How I can cut "extra" insulation from roof? I tried Solid Element Operations with different combinations, but couldn't get it how I wanted.

[DGSketcher]

The best way to remove the insulation would be to break up the roof and create a new composite with air space replacing the insulation.

Depending on the number of sections, the other option would be to add a 2D hatch to mask the insulation. Obviously this isn't ideal, but if time is short it can be a quick and easy fix when you need to get drawings issued.

[Barry Kelly]

As DGSketcher suggested, you need 2 separate composites and then split the roof - this can get messy and I think you will see the joins in plan.
Or mask in the section with a white fill.

Or use 2 separate composites in a differenet way.
One for the roof and structure.
And then a second for just the insulation.

You can than add the insulation just where it is wanted.
Place it in a layer that is hidden in plan but shows in your sections.

Barry.

[Erwin Edel]

If you merge the roofs, you will not see joints in plan.

[Barry Kelly]

Erwin wrote:
If you merge the roofs, you will not see joints in plan.

Thanks Erwin for reminding me.
Looking back through some old posts it seems I knew that already.
I just forgot that I knew it.

Barry.

[Erwin Edel]

No problem, it's not a completely flawless method as it messes with lines of joined roofs. You get the 'half of the line thickness is covered up' thing sometimes due to simple drawing order display order. Since I use fairly thin lines for my uncut elements, it doesn't bother me to the point of making cover fills again.

You don't even have to draw both the elements exactly together, it will just make a connection based on building material priority, so as long as the stronger part is correct, you're good to go. If you are slightly obsessed with accurate drafting (like me) that doesn't matter, but for those who like to work quick: there you go.

You can also merge roofs and shells.