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Old 03-17-2011, 09:44 AM   #1
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Need help laying out a roof


I am building a small shop with a roof of about 2.8 squares.

The roof deck is 18' wide and about 8' tall on each side of the gable.

I have my starter roll shingle applied all the way around, and I can't decide where I need to start the shingles.

The way it sits now, at 18', six shingles will fit across the bottom perfectly. The next row up (or course) will have to shift 6" to the right or left right? If I do this it puts one of the slits in the shingle right on the edge of the roof on both ends of that course..Is this accpetable or does the slit in between the tabs need to be away from the edge?

I figured it up that if i move everything another 3" to the right or left, It will work out where I don't have a slit on the edge on either end. Is this acceptable?

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Old 03-17-2011, 09:53 AM   #2
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Need help laying out a roof


You've got it figured out.

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Old 03-17-2011, 09:53 AM   #3
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Need help laying out a roof


That'll work fine
Good catch before you just started throwing 'em down
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Old 03-17-2011, 10:12 AM   #4
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Need help laying out a roof


So I do need to move them an aditional 3" or so to the right to avoid the slit on the edge?
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Old 03-17-2011, 10:23 AM   #5
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Need help laying out a roof


Take the time to just dry-lay a couple of courses and see what it gives you.
As long as the slots line up and you don't have taps less than 3", you'll be fine.

BTW this is why architectural shingles are so popular.
You don't have ANY of those layout problems....

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Old 03-17-2011, 10:30 AM   #6
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Need help laying out a roof


Quote:
Originally Posted by tcleve4911 View Post
Take the time to just dry-lay a couple of courses and see what it gives you.
As long as the slots line up and you don't have taps less than 3", you'll be fine.

BTW this is why architectural shingles are so popular.
You don't have ANY of those layout problems....

Oh I wish I did have architectural shingles. My house was built in '98, and a new roof added in '06 right before I bought it. They put regular 3 tab back on. I wish they would have done architectural because in my opinion they look so much better. According to my HOA rules, any other structure built on my property has to have the same roof. So, I have to put driftwood 3 tabs on this shop I'm building.


If I do it the way I had figured up and move everything an additional 3" to the right, it will create a tab every other row that is a little less than 3". Will this suffice or since it is actually less than 3" should I go with something different?
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Old 03-17-2011, 11:06 PM   #7
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Need help laying out a roof


The little tab will be fine. It just looks funky.

If you're really concerned about the 'little tab',
ask your shingle supplier for an IKO 3 tab shingle
They're Canadian metrics so each tab is 13" plus instead of 12" american.

.....or add another shadow board to your rakes to build it out more.

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