Roofing, shingle drip overhang question

July 6, 2020 6:53 AM

I installed a new roof on my shed. 3-tab shingles. I'm concerned about the amount of overhang.

Most of the overhang of the shingles on the gable and rake edges, beyond the metal drip edges, is about 1/4 to 1/2-inch. At some places, though, because cutting straight lines is difficult, I cut a few spots a bit closer to the edge of the metal drip edge -- maybe as close as 1/8-inch overhang.

I'm a worrier, so I keep thinking about how it's not perfect. Should I be worried about it at all? If anything, should I do something to mitigate any future problems?

Details: Warm, humid climate of southeast US; no snow in winter. I don't live in a high-wind area. Roof pitch of 4:12. Shingle installation instructions recommend a minimum 1/4-inch overhang.

posted by mr_bovis to Home & Garden (2 answers total)

I'm going to say don't worry about it, as long as there's that big chunky right angled steel drip edge underneath. It's ideal for the water to sheet off the shingles directly, but in heavy wind even a half inch overhang isn't going to stop water getting up there. Chalk it up to "do better next time."
posted by seanmpuckett at 7:14 AM on July 6, 2020

seconding seanmpuckett. This isn't a big issue, as long as you've got drip edge installed. It's even less of an issue, since rake and gable ends won't be seeing the majority of flow off the roof.
posted by cosmicbandito at 7:43 AM on July 6, 2020