Designing roof of small addition

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Old 03-27-11, 02:40 PM
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Designing roof of small addition

I plan on tearing a make-shift sunroom off the back of my house and building a 8x12 foot addition to extend the kitchen.
The only 2 roof options I could come up with are shown in the 2nd picture (I think the top one looks best). Does anyone see anything seriously wrong with the roof designs? Any other ideas? I have no experience building roofs and am learning as I go along. I want the build to be as simple as possible.





 
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Old 03-27-11, 03:10 PM
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If the last picture is your actual home then yes the 1st option would be best. that big chimney would complicate the other option.
If you do not have such chimney then option 2 would eliminate the extra valley on your roof. Plus it would be cheaper to buy the trusses for that design. You do plan to have a truss company come out and measure and recommend truss design for the building, Right?
Are you planning to leave the wall between the 2 structures or are you going to remove it? That too will make a difference on how the roof should be designed.
 
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Old 03-27-11, 08:38 PM
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I'd extend the fascia on the far right existing roof to the new corner and extend the plane of that roof over to the corner as well, eliminating the existing hip on that corner. I'd extend the roof plane on the left side of the chimney so that it extends higher, (imagine the left plane of the roof continuing through the chimney) so your new ridge would lie directly between the existing exterior wall (left of the chimney) and the new exterior wall opposite it. It would create a larger gable end than you currently have, and it would place the chimney left of center.

Depending on your measurements, the new ridge should die into the existing hip somewhere below the main ridge.

Here's a quick top view I threw together, if it helps you picture it better.

http://i231.photobucket.com/albums/e...g?t=1301279454
 
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