Bottom Cord of Roof Truss

[BomberAIA]

What is the best way to show a bottom cord of a roof truss in section? Do you add a ceiling or do you just add 2-d detail lines?

[Steve_Stafford]

I usually place a truss just beyond a section cut (side view) that way I'll see it beyond. Then for cross sections of a truss I just put another in "harms" way so it'll get cut, unless the same one will suffice. Certainly many ways to deal with this though.

Addendum...I do the same with the roof object as the Christopher...

[christo4robin]

I'm a fan of modelling, so I actually make my roof just sheathing and shingles (or metal or epdm etc.), place a 3D truss family @ 24" o.c. at the plate height, run the walls to the plate height (not attached to the roof except at the rake walls).

I use the soffit tool for soffits and the fascia tool for fascias. Works well for me and then most of my work is done for sections in either direction.

[sbrown]

I usually use a second roof called bot.chord that has one layer of gyp and a struct. layer of 3 1/2" wood stud.

if lights will be placed I use a ceiling, both these methods give great wall sections.

[Martin P]

I use a floor, you can attach wall tops to it and it forms your ceiling at the same time. It is also easy to adjust it up and down if you group it with the roof, and using join geomtry with the roof makes angles if you overlap the floor into the roof, cuts the sides perfectly. I then use 2d lines for the Webs of the truss, again if you do that as group through your sections it makes changes easy, and you can lock it to the "floor" top. works well for me.

Having said that, I would really like to spend the time as 4christo4 does and do it as actual trusses, just dont often know exactly what size and shape etc they will be till the engineers comes back to me, so just do it quickly to get through, then changes can be made quickly to.

4christo4 - if you have any parametric trusses you would be willing to share, I'd be quite keen to use them :D

[BomberAIA]

I tried using a ceiling made up w/ a 4" bottom cord, metal furring and dry wall. It worked pretty good. Thanks for the help.

[christo4robin]

I'll post a bunch of them to Rugi. If a truss has a one-off configuration, I'll make it as a separate (not in-place) family, but not parametric either. If its a real conventional truss, I've got a couple of families that are parametric.

[m_cahoon14336]

I'm a fan of modelling, so I actually make my roof just sheathing and shingles (or metal or epdm etc.), place a 3D truss family @ 24" o.c. at the plate height, run the walls to the plate height (not attached to the roof except at the rake walls).

I use the soffit tool for soffits and the fascia tool for fascias. Works well for me and then most of my work is done for sections in either direction.

4christo4, Would you post an example of the above? I am pretty new to Revit. I have used Autocad and ADT for years. I am to the point of detailing my first project (residential) for a client now. I am having trouble figuring out how to model the soffit, fascia, gutters and roof trim for a wood frame and brick veneer structure. Your help would be appreciated. :)