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Old 04-09-2011, 03:32 PM   #31
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Corner shed Roof???


if you change the pitch you change the overhang. This way you maintain a 1 foot overhang and a 4/12. It works structurally.but it is a pain in the ass.
there is about 8 different ways to build it. I just like this one.

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Old 04-09-2011, 03:44 PM   #32
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2x4 walls or 2x6?
O.K. these are the numbers based on 2x4 walls, they are fine vancouver builds 3 storey buildings with 2x4. warmer= less need for insulation
Attachment 31792
all the numbers are to the center of the cut if you want to go single hips or the center of doubles. I would go 2 plys. 4/12 is flat for a hip roof in Alberta.
The hip cuts are 13.33 degrees the rafters to fill in the hips are 18.43 degrees. I have to go clean my pool now the wife is all over me. I'll check back around dinner to see if you need anything else.

You rock buddy... that is awesome I just need the snow to go away and I will start posting pics of the shed goin up... hopefully in the next couple weeks.. we got a TON

and I need time to desiphere the roof build.. lot going on in that roof.. wow.
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Old 04-09-2011, 03:45 PM   #33
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if you change the pitch you change the overhang. This way you maintain a 1 foot overhang and a 4/12. It works structurally.but it is a pain in the ass.
there is about 8 different ways to build it. I just like this one.
You can maintain the 1' overhang by figuring all your work from the fascia line, then work back to the plate line to set the height of the seat cut. I've done it a hundred times. The steeper slope will have a different HAP than the lower pitch. This is a 4/12 and a 12/12 with 12" overhang on both and level fascia line. The wall height is 8" taller on the 12/12, to make up the difference in pitch.
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Old 04-09-2011, 03:48 PM   #34
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One of my buddies is looking at this too... and brought up a good question.. could you not frame the outside fascia exactly with a one foot overhang that mimics the base.. then temporarily support it on the walls and build it in from there? got the idea after looking at Craig s picture.
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Old 04-09-2011, 03:59 PM   #35
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One of my buddies is looking at this too... and brought up a good question.. could you not frame the outside fascia exactly with a one foot overhang that mimics the base.. then temporarily support it on the walls and build it in from there? got the idea after looking at Craig s picture.
Yes, that is possible. You could frame the entire roof in the driveway and lift it onto the walls if you have enough good neighbors.

Here's the thing. If a roof can be built to work to the limits of the walls, it can be built to the limits of the overhang.

When dealing with unequal pitches, which I have often done, all the calculations are done to the fascia line, as the fascia line and ridge/peak are given points. The location of the walls below only come into play for the location of the birdsmouth, which can easily be located with the use of a framing square. If the walls are the same height and the overhang is to be level, the plate height will always be the same distance above the fascia. If the overhang is the same, the plumb cut on the BM will always be the same distance back from the fascia.

In extreme situations, the wall height may have to be altered to achieve proper seating for the birdsmouth.
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Old 04-09-2011, 04:37 PM   #36
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Yes, that is possible. You could frame the entire roof in the driveway and lift it onto the walls if you have enough good neighbors.

Here's the thing. If a roof can be built to work to the limits of the walls, it can be built to the limits of the overhang.

When dealing with unequal pitches, which I have often done, all the calculations are done to the fascia line, as the fascia line and ridge/peak are given points. The location of the walls below only come into play for the location of the birdsmouth, which can easily be located with the use of a framing square. If the walls are the same height and the overhang is to be level, the plate height will always be the same distance above the fascia. If the overhang is the same, the plumb cut on the BM will always be the same distance back from the fascia.

In extreme situations, the wall height may have to be altered to achieve proper seating for the birdsmouth.
that only works on equal pitches.
a 4/12 pitch and a 12/12 pitch will have an 8" height difference, if you have the same height walls and you maintain a 1 foot overhang. It's in the name. I'm not sure if it is an extreme situation if it happens every time.
I would show you some pics but I stoped taking pics of every house I build about 15 years ago. They are all the same anyways. building is building
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Old 04-09-2011, 04:49 PM   #37
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that only works on equal pitches.
a 4/12 pitch and a 12/12 pitch will have an 8" height difference, if you have the same height walls and you maintain a 1 foot overhang. It's in the name. I'm not sure if it is an extreme situation if it happens every time.
I would show you some pics but I stoped taking pics of every house I build about 15 years ago. They are all the same anyways. building is building
It doesn't happen every time. In some cases, the steeper pitch gets 2x12 rafters, while the lesser pitch gets 2x6 or 8. That, along with the difference in the vertical rise more than makes up for the 8 inches difference in pitch.

As far as your statement about building is building and all houses are the same, I'm truly sorry you feel that way. Every project is still a work of passion for me.
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Old 04-09-2011, 05:00 PM   #38
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Your best bet is going to be bringing everything to one point.

While what craig4 drew will work, if you never framed a roof before, let alone a bastard hip roof, that is going to be very difficult for you to pull off.
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Old 04-09-2011, 06:07 PM   #39
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nothing is ever easy but I think on a scale like this it shouldnt be to bad to get a handle on... find center is the key...
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Old 04-09-2011, 06:07 PM   #40
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i agree it is going to be a pita. The building is building comment was simply to say that building a shed has the same principles as building a 20 million dollar house. or a 15 story highrise. I've built or am in the middle of building all of them. I have been doing this for quite some time and I still love getting up at dawn and doing what I do. Most houses have an engineer, architect, designer and owner. building is just putting all their ideas together.
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Old 04-09-2011, 07:12 PM   #41
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agreed...
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Old 04-09-2011, 07:14 PM   #42
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You can frame this with a 4/12 pitch with the two 12' walls with three regular 45 hips and the three walls having equal sides at 45 with two bastard hips and a 4-11/16:12 pitch common rafter and having a 1' equal overhang all the way around.
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Old 04-09-2011, 07:15 PM   #43
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i agree it is going to be a pita. The building is building comment was simply to say that building a shed has the same principles as building a 20 million dollar house. or a 15 story highrise. I've built or am in the middle of building all of them. I have been doing this for quite some time and I still love getting up at dawn and doing what I do. Most houses have an engineer, architect, designer and owner. building is just putting all their ideas together.
I know plenty of guys who can build a shed, but it doesn't qualify them to build a "20 million dollar house".

I've seen plenty of framers fake it too. There is a difference between being right and being "close enough". The guys who know the difference are the ones who can see the difference.

The guys who don't know the difference think any monkey can be a framer.

It's cool though, to each his own.
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Old 04-09-2011, 07:17 PM   #44
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You can frame this with a 4/12 pitch with the two 12' walls with three regular 45 hips and the three walls having equal sides at 45 with two bastard hips and a 4-11/16:12 pitch common rafter and having a 1' equal overhang all the way around.
And there is a guy who knows the difference. You are a true professional Joe.
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Old 04-09-2011, 07:36 PM   #45
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Now that there is a plan in place, who is going to show the OP how to layout the hips and rafters?

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