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Old 10-12-2011, 11:37 AM   #1
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cutting architectural shingles to create stair step


I'm wondering:
I've always heard you're supposed to cut off 6" per row of shingles to create the staggered joints. So the first one you'd cut 6", second 12", third 18", and so on.

But, with standard 39" long architectural shingles, wouldn't it make more sense to cut them at 7 13/16" so they are evenly divisible? In other words, each piece you cut off can be used again higher up the roof, whereas the 6" method creates a piece of waste eventually.

What's the standard procedure here?

I've done two roofs so far with the 6" method and never thought twice about it.

Thanks.

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Old 10-13-2011, 12:01 AM   #2
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cutting architectural shingles to create stair step


Follow the manufacturers instructions for the metric shingles. They are not always cut evenly. If the instructions aren't on the wrappers, go to their website. The unequal cuts are tied to the patterns of the shingles.
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Old 10-13-2011, 06:19 AM   #3
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cutting architectural shingles to create stair step


What he said, following the manufacturers directions. But we always do it as you described, which is usually the manufacturers recommendedation. The purpose of this is it makes all verticle joints at least 6 shingles from the last verticle joint.
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Old 10-13-2011, 08:27 PM   #4
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cutting architectural shingles to create stair step


Not too many people can tell the difference between 7 13/16" or 6" from 20' away.....

I think when I did mine, I went 12", 24"......less cutting.....

But I have found an easier way.....Edurardo.....licensed....and he does great work.....lets me watch the rook go on while I drink a beer or two...or three.
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