Rusty Roof Nails In Attic

Less than a week later they pulled it out and found this.

Rusty roof nails in attic.

The nail was driven into an upper bedroom exterior wall to hang a picture. They were leaking from day 1 and further if you wait 1 yr and go up in attic of any and every asphalt shingle roof house will have stains on bottom of plywood deck. Our photograph above shows roofing nails protruding through plywood roof sheathing visible in an attic where there is no under roof condensation or moisture problem. Moisture causes metal components of the roof like nails to rust and potentially break which can lead to shingle loss.

All of those things will add to the moisture in the attic and will rust any metal exposed there. If you have a friend in the attic ask him to direct you to a sturdy spot where the nail can bite into the wood. Step 2 place a bucket underneath the nail to catch the water as it runs down the nail. The air in the attic has water in it and it condenses on the cold metal.

Hammer a new nail into the roof about 1 inch above the hole from the previous nail. Roofing inspections cfoley1 christopher foley april 24 2019 7 07pm 1 ive seen roof shingle nails get rusty due to poor ventilation as this attic had lousy ventilation but never black and the sheathing turn black around the nail. The moisture caused by condensation on the inside of the attic can also rust things like plumbing heating and venting duct straps to rust and break. Roof is new 5 yrs over an old layer.

A tool like this shoots nails through shingles. This is why you see the frost. Rust or stains around roofing nails that protrude through the attic sheathing they re supposed to stick through are a clear indication of high attic moisture. Unfinished by a builder who went bankrupt.

The nail will provide a path for the water. Excessive heat will cause your air conditioner to have to work harder and longer to cool your living space. They bought the home and finished it and moved in two weeks ago. The nails that you see in your attic get as cold as the outdoor temperature.

A point often overlooked is that since it s winter the water freezes on the cold nails. Roofing nails are galvanized but add enough moisture and galvanized nails will rust. A person called me today and asked what could have caused this.