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I read the nails can be cut and then paint the eave. Is that true?
Yes, that's one option, but there are a lot of nails so it would take a good bit of effort. Plus, cutting them off won't necessarily get them flush to the plywood decking and you'll still see a slight protrusion.
If the look is really bothering you, the easiest way might be to add another layer of material between the rafters, just slightly below the nails.
1) Some 1x1 blocking laid in next to the 2x4's and against the underlayment; screw in place.
2) Some T-111 cut to fit (tightly) between the 2x4's and then nailed to the 1x1's.
3) Paint and caulk.
Aluminum or vinyl soffit would be cheaper, lighter, and easier than plywood. Use some full panels and some ventilated panels to deal with moisture under the roofing.
Roof sheeting is only 1/2" to 5/8" - shingles not much more than that. I don't know where you think you can find nails that wouldn't penetrate 1/2" plywood. This is NOT a roofer error, it's an unfinished roof eave. If you want a more finished ceiling above, add a liner or soffit.
<>Had the worst of the sharp nails (not as bad as you have) ground a little to knock of the sharp points and then painted over it all. It is not perfect but looks a lot better.
Your roof is in serious trouble now. If the nails were ground then they got hot and melted a little bit of the shingle. They also heated the plywood and loosened the bond. All of this reduced the holding power of the nails.
"Sorry for your loss"
I read the nails can be cut and then paint the eave. Is that true?
NO! No, no, no, there is a reason they penetrate the shingle, the barrier and the sheathing, in fact it may even be code in your area. Too short, and the shingles are vulnerable to high winds and loosening during winter freeze cycles. In a situation like that, there are other options for attaching roofing materials. IMHO- if they can't live with it, I'd put up 1" foam board in between rafters and paint over it.
Roof sheeting is only 1/2" to 5/8" - shingles not much more than that. I don't know where you think you can find nails that wouldn't penetrate 1/2" plywood. This is NOT a roofer error, it's an unfinished roof eave. If you want a more finished ceiling above, add a liner or soffit.
I did residential roofing for 28 years. The only way to avoid nails showing is to have a deck at least 3/4" thick which is rarely plywood on a roof.
They could have torn your deck off, replaced with 1x6 tongue and groove and used 3/4" and 1 inch nails. That is the only thing that would have passed code and manufacturer warranty without poking through.
Google up the installation specs from any shingle manufacturer and you will see.
Maybe the roofer should have informed you the nails would show and offered you an option where you could pay for a full roof deck replacement.
But those nails showing are NOT a mistake.
Last edited by craig11152; 07-04-2017 at 11:11 AM..
Reason: corrected spelling error
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I did residential roofing for 28 years. The only way to avoid nails showing is to have a deck at least 3/4" thick which is rarely plywood on a roof. 
