Overhang

[Darren]

I'm pretty sure the normal overhang is 3/4 to 1 inch. Does anyone have that on paper?

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[Marc]

Certainteed Shingle Applicator's Manual, 9th edition, page 93, Chapter 10 - Three-Tab Shingles:

Make sure there is 1/2" left overhanging both rake and eaves if drip edge is being used. If you are not using drip edge, make the overhand 3/4".

Marc

[John Kogel]

At least it's a straight edge. I wouldn't make a big deal about it.

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[hausdok]

NAHB Residential Construction Performance Guidelines states 3/4-inch. Most manufacturer's instructions I see specify no greater than 3/4 inch beyond support.

I think your answer is 3/4 inch.

Not to get off-topic, but around here maybe - maybe - one roofer in a thousand installs drip edge at the eaves and it's normal to find the roof extending an inch to an inch and a half at the rake and anything from about an inch to three inches at the eaves.

This is a typical "drip edge" here. How would you like to be the poor sap trying to clean that gutter without damaging that bottom course?

ONE TEAM - ONE FIGHT!!!

Mike

[Jerry Simon]

At least it's a straight edge. I wouldn't make a big deal about it.

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I'd at least make it a small deal. Under the weight of ice & snow, those will probably bend over and at least crack.

[Darren]

To be honest, this particular roof was about 3 weeks old. I'm more concerned about wind uplift and tearing the shingles off.

[John Kogel]

At least it's a straight edge. I wouldn't make a big deal about it.

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42.16?KB

I'd at least make it a small deal. Under the weight of ice & snow, those will probably bend over and at least crack.

I did say trim the edge in my pic. I was talking about Darren's overhang.

Snap a chalkline. Use an old fine tooth Skilsaw blade, running backwards. Done.

[hspinnler]

Owens Corning provided me with a letter so I would have a backup:

Download Attachment: .pdf"] DRIPEDGE_OVERHANG2[1].pdf

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[Bill Kibbel]

Mel is the head of Building Science & Technoligy?

[John Dirks Jr]

I'm pretty sure the normal overhang is 3/4 to 1 inch. Does anyone have that on paper?

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51.44?KB

I sometimes see wind damaged shingles when there's excessive overhang like that. Especially on the gable ends like in that picture.

[Darren]

Thanks Hank!

[John Kogel]

Mel is the head of Building Science & Technoligy?

His assistant is cute but she can't spell. []