Roof Joining Issues

[greg.mcdowell]

Trying to model the insulation slope in a model and I've got a method that seems to work although I don't really like it yet and would, among other thigns, love to see other examples. The problem I'm having in this file is that I can't join the roofs on either end with the roofs in the middle... and I would need to in order to see the valley lines.

Any ideas as to what might be limiting me in this regard or alternate ways to achieve the same result (without resorting to drafting lines)?

[Firmso]

Trying to model the insulation slope in a model and I've got a method that seems to work although I don't really like it yet and would, among other thigns, love to see other examples. The problem I'm having in this file is that I can't join the roofs on either end with the roofs in the middle... and I would need to in order to see the valley lines.

Any ideas as to what might be limiting me in this regard or alternate ways to achieve the same result (without resorting to drafting lines)?

Try this link
http://discussion.autodesk.com/thread.jspa?messageID=5188812

It may not be what you are trying to do, but worth the try.

[DanielleAnderson]

Trying to model the insulation slope in a model and I've got a method that seems to work although I don't really like it yet and would, among other thigns, love to see other examples. The problem I'm having in this file is that I can't join the roofs on either end with the roofs in the middle... and I would need to in order to see the valley lines.

Any ideas as to what might be limiting me in this regard or alternate ways to achieve the same result (without resorting to drafting lines)?

I would have to agree with others that this is the type of thing that I would draft instead of model, BUT, if you need to model it, have you tried using in-place families instead of the vanilla roof tool? If you built all this as an in-place family, you might be able to use blends, etc. to achieve some of the geometry you are looking for. In the end it sounds like more of a pain than it is worth to model sloped rigid insulation, but you gotta do what you gotta do. :) Hopefully that is helpful.

[patricks]

Sometimes it is helpful to model it if there will be significant height change over a long distance, and you need to start w/ 3/4" thick insulation at a roof drain and see the actual thickness over at the parapet wall.

I have tried a couple of methods before, sometimes using just a very thin roof type, initially sketching a plain rectangle, joining the roofs to see where the join lines occur, and then edit the thin roof again to match the joined edges.

However sometimes Revit doesn't like it, depending on the thickness of the roof type and whether or not certain parts of it touch the main roof. I can't remember exactly off-hand what the circumstances are, I just know that sometimes when I try to do tapered insulation and crickets Revit will throw up warnings and errors and say it can't do what I want it to do.

[david.metcalf]

I ran into the need to create a separate roof slab for every slope. Otherwise the ridge line would not line up as built. Used join geometry/roofs to get the results I wanted. Otherwise using model lines in each view was too much. It took me three days but then the results was worth it and I learned something from it.

[Firmso]

I ran into the need to create a separate roof slab for every slope. Otherwise the ridge line would not line up as built. Used join geometry/roofs to get the results I wanted. Otherwise using model lines in each view was too much. It took me three days but then the results was worth it and I learned something from it.

Yea, but that seems too much work to do every roof slope. I think there should be a roof tool that lets you apply roof slopes on your roof surface without actually modeling up to maybe a 1:12 pitch. This could be a good wishlist item.