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Hip Roof Question Needing Advice 09-26-2007
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Posted by Needing Advice on September 26, 2007, 4:01 pm
My upstairs bedroom has a deck that we do not use because of the
elements and the bugs. I would like to make this space more usable by
covering it with a roof and screening in the walls. The house is a
salt-box style house with no gable end lookouts, just frieze board.
The deck is attached to one of the gable ends.

At first I was going to use the same roof pitches (2 different) but
lower the ceiling about 1 foot so that the roof line is broken up a
bit instead of just extending it out level with the existing roof.
But now I've got the hankering to build it as a hipped roof. That way
I can maintain the 8' ceiling and still break up the roof line. The
hip roof will give the house a different look, currently it is a
square box.

What is the most common pitch for a hip roof? I read 2/12 but I
haven't found any other suggestions.


Refer to this picture for deck reference. The upper part is, of
course, the one I want to roof.

http://img406.imageshack.us/my.php?image=roof3ty3.jpg


Posted by Robert Allison on September 26, 2007, 4:22 pm
Needing Advice wrote:
> My upstairs bedroom has a deck that we do not use because of the
> elements and the bugs. I would like to make this space more usable by
> covering it with a roof and screening in the walls. The house is a
> salt-box style house with no gable end lookouts, just frieze board.
> The deck is attached to one of the gable ends.
>
> At first I was going to use the same roof pitches (2 different) but
> lower the ceiling about 1 foot so that the roof line is broken up a
> bit instead of just extending it out level with the existing roof.
> But now I've got the hankering to build it as a hipped roof. That way
> I can maintain the 8' ceiling and still break up the roof line. The
> hip roof will give the house a different look, currently it is a
> square box.
>
> What is the most common pitch for a hip roof? I read 2/12 but I
> haven't found any other suggestions.
>
>
> Refer to this picture for deck reference. The upper part is, of
> course, the one I want to roof.
>
> http://img406.imageshack.us/my.php?image=roof3ty3.jpg
>

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

Posted by Needing Advice on September 26, 2007, 11:18 pm

Hi Robert,
The house has a salt-box style roof. The front of the house has a
very steep roof that is flat to the peak. The rear has a smaller roof
with a little less pitch to it. It's like this house except the rear
has slightly less pitch than the front.

http://img206.imageshack.us/my.php?image=sboxsc5.jpg

It's 1 1/2 story with a 2 br loft upstairs. If you can imagine the
deck being where that rear set of upstairs windows are in that picture
above. I don't want to extend the current roof line. My first idea
was to keep the same roof pitch(es) but drop the ceiling a bit on the
deck to break up the roof line. The new deck roof would tie in to the
side of the house just under the old.

But then I started to think about using a hip roof so that I could
still add something different and keep a nice high ceiling over the
deck. Do you think that would look awkward? A hipped roof attached
to the gable end of a salbox like that?




> 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



Posted by Robert Allison on September 26, 2007, 11:33 pm
Needing Advice wrote:
> Hi Robert,
> The house has a salt-box style roof. The front of the house has a
> very steep roof that is flat to the peak. The rear has a smaller roof
> with a little less pitch to it. It's like this house except the rear
> has slightly less pitch than the front.
>
> http://img206.imageshack.us/my.php?image=sboxsc5.jpg
>
> It's 1 1/2 story with a 2 br loft upstairs. If you can imagine the
> deck being where that rear set of upstairs windows are in that picture
> above. I don't want to extend the current roof line. My first idea
> was to keep the same roof pitch(es) but drop the ceiling a bit on the
> deck to break up the roof line. The new deck roof would tie in to the
> side of the house just under the old.
>
> But then I started to think about using a hip roof so that I could
> still add something different and keep a nice high ceiling over the
> deck. Do you think that would look awkward? A hipped roof attached
> to the gable end of a salbox like that?


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/SpecPorchProject5.htm




>>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
>
>
>


--
Robert Allison        
Rimshot, Inc.
Georgetown, TX

Posted by Needing Advice on September 27, 2007, 10:14 am
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
>
> --
> Robert Allison
> Rimshot, Inc.
> Georgetown, TX



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