'Shiners' in the attic make your roof vulnerable to high winds.
Yikes! ‘Shiners’ in the Attic
If you live in a windstorm-prone area, you should find out if your home's attic contains shiners— and I don't mean the frisky baitfish used to catch large-mouth bass. In homebuilding, shiner is a term used for exposed nails along the wood structure of the roof. If you have them, chances are the roof above them is improperly attached. How do you find shiners? If you have safe attic access, use a flashlight to look along the framing members in your attic. If you see shiny objects along the edges of the framing members, you've got shiners. That's bad news because the nails should be hidden inside the wood supports of the roof. If they are exposed, it may mean that your roof is more likely to come off in high winds. The good news is that a roof with shiners can be strengthened—so check for them now before it's too late. What if you don't live in an area prone to high winds? Homes nationwide are vulnerable to windstorms, whether from hurricanes, Nor'easters, straight-line winds, downslope winds, or tornadoes. Don't assume that because you don't live on the coast your home is immune from windstorms or shiners. Do a quick check now to avoid damage later.
There is a spray foam adhesive that can fix the problem of shiners without tearing off the roof to renail it. The foam is applied within the attic of any home new or existing to increase the wind uplift resistance of the roof system.
