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Posted by Bobk207 on September 27, 2007, 10:52 am
wrote:
> Yeah, I would use a partial ridge to get the rafter run the same for
> all common rafters. So on a 10ft deck the ridge would come out about
> 5ft to get the run correct. If I use the same pitch as the nearest
> roof line I would be back at dropping the ceiling so I'll probably do
> a different pitch altogether. It should look fine, I hope!
>
> Have you ever seen metal connectors for the end of a ridge/hip
> connection? With the 2 hips and common rafter hitting the end of the
> ridge, what's the best way to hurricane proof it?
>
> As far as experience goes, you have to earn it by doing things that
> can be risky or hard. Nobody ever learned anything without getting
> their hands dirty!
>
> Thanks for the feedback, it is much appreciated.
>
> > Depends on how you do it. The hip roof could be added to the
> > gable end fairly easily. The determining factor for your
> > slope would be the closest roof line that you would be coming
> > near. It is hard to describe, but you would almost certainly
> > have a bastard hip which can be a real pain to frame even for
> > experienced carpenters. You better do alot of studying before
> > you attempt it.
>
> > If it is not a perfect square, then the hip would either be a
> > bastard hip, or a hip with a partial ridge.
>
> > You would end up with something like this;
>
> >http://www.designers-choice.com/DesignersChoicePages/SpecPorchProject...
>
> > >>Really hard to see the roof you want to modify in that photo.
>
> > >>I don't really need it to answer your question, however.
> > >>There is no standard pitch for a hip roof.
>
> > >>Whatever pitch you have is generally the one you use, but
> > >>sometimes you use a different pitch than the main body of the
> > >>roof on the hip side or face. This is called a bastard hip
> > >>(probably referring to how much more dificult it makes the
> > >>framing).
>
> > >>One thing you said is that there are two roof pitches. Do you
> > >>mean that the roof has one pitch on one side and a different
> > >>on the other? If so, you are going to have even more fun than
> > >>if it were a standard bastard hip.
>
> > >>--
> > >>Robert Allison
> > >>Rimshot, Inc.
> > >>Georgetown, TX
>>>As far as experience goes, you have to earn it by doing things that
can be risky or hard.<<<
True enough but it helps to be working with an experienced hand as
opposed to "going it alone". Esp one something as important & long
lasting as a new roof add-on framing job.
If you screw up a sink or cabinet install you can easily fix it.
As Robert suggests...studying up a lot before jumping in is advisable,
having experienced help would be even better.
As to roof pitch, 2 in 12 is pretty shallow. Where is the project
located? If you're going to "go it alone", I'd take a look at other
roof pitches in area (shallow ones) & ask the owners if they
experience any problems.
I had a open covered patio that had ~2:12 (maybe a little shallower)
that the original builder used cedar shingles! Of course it leaked &
over time the framing rotted out. I replaced it & went even
shallower; I used 1.5 in 12 to maintain header height & give me some
upper roof rain gutter clearance. Of course I went with a membrane
roof.
In SoCal ranch style homes (in the 60's) were framed 4:12 and covered
with cedar shingle, most have been reroofed with asphalt shingles.
Be careful if you decide to go shallow, it would suck to do all that
work & have the roof leak.
Low slope roofs (2/12 and 4/12) require special care. If you have the
possiblity for ice dams (not likely on an open patio) or wind driven
rain the chances of a leak are higher.
cheers
Bob
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