Just had my roof re done. The company I had do it got rave reviews (and many) on homestars. When they ripped off the old shingles I looked at the decking and it was in bad shape (like I suspected in another thread posted here). At that time I made the call to have all the roof plywood replaced because I didn't want to take a chance (roof decking was cracking when you walked on it and in some places if you pushed hard enough it would break through, looks like the heat buildup and lack of ventilation in the attic caused it over the 30 or so years). Anyways back to the topic. The roofers ripped up all the old plywood and replaced it. When they started I didn't see them with any other nail guns other than the coil nailers they use for the shingles, so I figured they would just swap nails for the plywood. Later that evening when I got home I went on the roof to inspect the progress and around the gable on the front of the house where they still had the plywood exposed I saw the tell tail sign of a roofing nail (wide head) being used to secure the sheathing. Now before I had all the word done I did many hours of searching what the correct way to secure the roof sheathing was and nail spacing etc, I never read anywhere that standard roofing nails were accepted. From the picture does it look like I'm correct about the type of nail being used to secure the sheathing? [url]https://imgur.com/a/EY5MpHc[/url] If so are my options a) argue with them to rip off the shingles and fasten the sheathing properly b) go into the attic space and sister in some dimension lumber on the roof truss and use construction adhesive to glue down the sheathing more securely? We don't live in a high wind area but I know the roofing nails will eventually allow the plywood to start popping away from the roof truss becoming weak and a risk for the wood to catch and blow away in a severe wind storm.

We just had a new roof put on along with skylights. We have not had the best of luck with contractors. Not sure if we expect too much. I really don't know much of anything about roofing. I took pictures and wonder if anyone could comment if these look ok Other people we know used this installer. They are supposedly a preferred / certified? Owens Corning installer and we get a longer warranty from them because we used this installer. Not sure if I just worry too much or know just enough to be dangerous. Other people aren't going on their roof to look over the work of a pro and second guess them. I kinda didn't want to go up there because i figured I'd see things I'd wonder about. But needed to go up there to install an antenna. I found about a 1/2 doz. nails laying up there. Some heads were pushed into the shingles (like someone stepped on it?). Do these cuts self heal? Are they a big deal? Flashing around the skylights - that look OK? The flashing around the chimney - should it be above or under the shingles? I would think water would run down the roof and get under that metal? Or is there also some of that metal under the shingles? I saw this ding in a shingle - something gouged it a bit.... self healing? There's loads of other layers of things below that to stop water? or a problem? Should walking on the roof cause some granules to come off already? I know the old roof had loads of granules in the gutter. Not wanting to disturb the roof was part of why I didn't want to go up there. Is walking on a roof a big issue for wear? THANKS! [attach]101973[/attach] [attach]101974[/attach] [attach]101975[/attach] [attach]101976[/attach] [attach]101977[/attach] [attach]101978[/attach]