Black Around Nails In Attic

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.

Black around nails in attic.

Deficiency of vitamin b6 and b12 is the chief cause of having dark skin around the nails. If these isolated spots are seen away from these roof penetrations then the roof may be damaged and leaking. Our example photos below show characteristic rust stains around roofing nails in a poorly vented attic below left and the absence of those stains around roofing nails in a well ventilated attic below right. Even our poorly vented attic below left was not as severely wet and moldy as the attic in grudzinski s photos above.

Does mold on attic sheathing have to be removed. Mold can form but often it. So likely the nails are very cold in winter and warm air in attic condenses around that. Roof leakage can often be seen as dark black stains concentrated and radiating out from one or more individual locations.

Be sure to inspect the entire area to rule out the possibility of other fungi affected. Mold growing on the sheathing in your attic is a serious problem that shouldn t be ignored. I live in nj. For attic ventilation apart from soffits i also have a power vent which operates based on temperature.

The presence of mold inside your home even if it. Taking nourishing food is vital therefore you should add food containing vitamin b6 and b12 in your diet. These are commonly seen underneath roof vents plumbing stacks vent hoods and around chimneys. 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.

Once you notice black fungi growing in one part of the attic there could be a probability that it has been spreading to other areas. 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 dark spots are only around the nails and on the floor below the nails. Roof is new 5 yrs over an old layer.

And i suspect this happens during winter.