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flat roofs

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Message 1 of 3
jlspartz
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flat roofs

Has anyone made or know how to make a steel or concrete deck roof, with parapets, tapered rigid insulation and roof drains? Is it possible to do in Revit?
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Message 2 of 3
Anonymous
in reply to: jlspartz

I'm just getting started doing a wood frame flat roof with tapered
foam/torch-on and trough with roof drains.
The short answer to your question is "yes" it can be done.

For the flat roof, do it in two assemblies.
1. Structural roof assembly including 4" of flat iso-foam insulation (R28)
2. Tapered top roof assembly - I used about 6" of bead board foam, with 1/2"
of backer board and 1/8" torch-on.
3. Do both roofs in Roof > By footprint
4. The top roof gets a slope arrow, click on the slope arrow and make it
1/8" or 1/4" per foot
5. Go to elevation view and use the Join tool...click the structural roof
first, then the top roof assembly - Revit will slice the bottom of the foam
accordingly

Parapets are simply pony walls, you could build these on top of your
structural roof and bring the top roof up to it.

wrote in message news:5160193@discussion.autodesk.com...
Has anyone made or know how to make a steel or concrete deck roof, with
parapets, tapered rigid insulation and roof drains? Is it possible to do in
Revit?
Message 3 of 3
Anonymous
in reply to: jlspartz

It's worth noting that if you have a number of penetrations (elevator shaft,
skylights, etc) that the join tool may not work, given that the "joining"
and/or slicing of the top layer would not be able to be performed by Revit
at the opening locations.

I predict that a possible work-around would be to model "openings" around
skylights or thru open shafts in the top layer prior to "joining" to the
structural layer beneath.

Anyone have experience with this?


"david" wrote in message
news:5160200@discussion.autodesk.com...
I'm just getting started doing a wood frame flat roof with tapered
foam/torch-on and trough with roof drains.
The short answer to your question is "yes" it can be done.

For the flat roof, do it in two assemblies.
1. Structural roof assembly including 4" of flat iso-foam insulation (R28)
2. Tapered top roof assembly - I used about 6" of bead board foam, with 1/2"
of backer board and 1/8" torch-on.
3. Do both roofs in Roof > By footprint
4. The top roof gets a slope arrow, click on the slope arrow and make it
1/8" or 1/4" per foot
5. Go to elevation view and use the Join tool...click the structural roof
first, then the top roof assembly - Revit will slice the bottom of the foam
accordingly

Parapets are simply pony walls, you could build these on top of your
structural roof and bring the top roof up to it.

wrote in message news:5160193@discussion.autodesk.com...
Has anyone made or know how to make a steel or concrete deck roof, with
parapets, tapered rigid insulation and roof drains? Is it possible to do in
Revit?

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