Asphalt shingle overhang at drip edge

[Jeffrey S. Campbell]

99% of the time I see it cut close to flush with the metal drip edge... but this latest one overhangs by nearly 1"... does anyone see a problem with this... both the eaves and rake were like this...

what comes to my mind is catching the wind (minimal) and effecting the actual drip effect???

any thoughts?

[wsiegel]

Here is fla the code is not more that a 1/4 inch for windload. I think I read somwhere that it was larger up north due to the snow.

[Kenton H. Shepard, CMI]

In Colorado they're commonly 1 1/2 " even though we get winds over 100 MPH here on the Front Range. Only really a problem when they get so long they cause run-off to overshoot the gutter.

[John Nosworthy]

What ever amount of overhang is present, it can't be wrong if "installed as per manufacturer's written installation instructions", usually located on every bundle of shingles these days, (and online). Actually identifying the shingle manufacturer can be a challenge of course, if not already known.

The point is this, in litigation work, when ever there is a complaint about the roof installation, or re-roofing installation, among what ever else might be wrong and driving the complaint, this edge detail question gets tossed into the ring also, as one more arguement why the whole roof needs to come back off and be done all over again.

Personally, I think that even with the heavier shingle weights, and being in a coastal wind zone with a 6 nail spec, I would flag any installation that exceeds one inch, at either the eave edge or the rake edge. BUT more folks get in trouble for having no overhang beyond the edge metal than having too much.
IMO

[Dale Duffy]

Originally Posted by jcampbell

99% of the time I see it cut close to flush with the metal drip edge... but this latest one overhangs by nearly 1"... does anyone see a problem with this... both the eaves and rake were like this...

Looks good Jeff, and it also helps prevent capillary action, water will drip off the shingle instead of running off the fascia.

[ccbrands1]

Originally Posted by dduffy

Looks good Jeff, and it also helps prevent capillary action, water will drip off the shingle instead of running off the fascia.

agreed 100%

[bjones1]

As a contractor, I do a lot of roofing. My practice, in line with the manufacturer's advice is to overhang the shingles 1/2 to 1 inch over the eave-starter on the eave's and to cut it flush with the eave-starter on the rakes. By installing eave-starter on the rake, most water is diverted away from the fascia. I haven't had any calls regarding wind damage, on any roof I have done, in the past 20 years. Maybe I'm doing something right.
jmo

[Kenton H. Shepard, CMI]

Flush on the rakes is a good idea. Here, that's where they blow off first.

[Jeffrey S. Campbell]

Thanks for the input guys... next chance I get I will be reading the packaging as well...