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tapered insulation on pitched deck

4 ANTWORTEN 4
GELÖST
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Nachricht 1 von 5
kgatzke
1000 Aufrufe, 4 Antworten

tapered insulation on pitched deck

I have a structural deck pitched at 1-/8" per foot.  This no longer meets code for drainage so the new roof will be constructed with tapered insulation to give it a 1/4" or better per foot of drainage.  The question is how do I model this in Revit, which only seems to allow variable thickness in roofs that are flat and cannot construct a roof that's pitched from both sides.  Have any of you come across a trick to model this?

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Nachricht 2 von 5
ToanDN
als Antwort auf: kgatzke

You create two sloped roofs, one to define the main (framing) slope, the other define the cricket slope, then join geometry them together.

 

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Nachricht 3 von 5
kgatzke
als Antwort auf: ToanDN

What do I do if the underlayment representing the tapered insulation ends up being thicker in parts than the thinnest parts of the roof?  Joining them will create parts where the lower layer pokes through, like around drains and scuppers.

Nachricht 4 von 5
ToanDN
als Antwort auf: kgatzke

- Use a void to trim the part poking out
- Create the top roof thinner and place several of them instead of one big one
Nachricht 5 von 5
kgatzke
als Antwort auf: ToanDN

Ok, that works, but with issues, such as the top layer becomes solid through the full depth of the roof in section.  I have to flesh out the taper layers in detail components anyway so it doesn't matter.  Thanks.

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