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Vaulted flat ceiling


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#1 gary wood

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Posted 13 November 2021 - 08:34 AM

Trying to draw a vaulted flat ceiling. Basically raise collar ties up and have sheetrock on collar ties and lower part of rafter . Help please



#2 Sam Morgan

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Posted 13 November 2021 - 08:36 AM

Double hip ceiling edges on both sides. Set one pitch to match your rafter pitch then the other to horizontal
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#3 Sam Morgan

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Posted 13 November 2021 - 08:38 AM

This what you're after?

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#4 gary wood

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Posted 13 November 2021 - 09:13 AM

I have a 3 pitch gable and want flat ceiling at 9'6" with gables rocked to that point. Rafters below raised flat being to be sheetrocked also. No horizontal Soffet or tray  



#5 Joseph Smith

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Posted 17 November 2021 - 09:00 AM

sketch would help.  are we getting close?

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#6 James Carswell

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Posted 23 January 2022 - 03:26 PM

I'm having similar issues...  Trying for a 15" pitch on each of the 4 sides, with a flat rectangle in the top center.  I can get two sides with the double hip, showing pitch at the side and flat on top.  Can even get to pitch on two opposing sides and flat on top.  Cannot get all 4 sides pitched. French style great room matching roof pitch but using collar ties for flat roof section.  Will then add faux (or actual) wood beams for accents.  Any ideas?



#7 Keith Almond

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Posted 23 January 2022 - 07:26 PM

You should be able to make all 4 sides double hipped, with a 6 (or whatever) lower pitch for a given distance, and a Horizontal Top Pitch.

 

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#8 Lane De Muro

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Posted 26 January 2022 - 06:50 AM

Trying to draw a vaulted flat ceiling. Basically raise collar ties up and have sheetrock on collar ties and lower part of rafter . Help please

The raised ceiling joists don't necessarily replace the collar ties....you still may need both. Figure R802.4.5 (NY 2020 Residential Code) has the ceiling joist/Ridge height requirements.  Or just go with an engineered design. 


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