Black Around Nails In Attic

The dark spots are only around the nails and on the floor below the nails.

Black around nails in attic.

Would this be mold starting at each nail site and is this black nails due to poor ventilation or old roof leaking at all the nail penetrations. Mold growing on the sheathing in your attic is a serious problem that shouldn t be ignored. Roof leakage can often be seen as dark black stains concentrated and radiating out from one or more individual locations. 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. And i suspect this happens during winter. Roof is new 5 yrs over an old layer. Even our poorly vented attic below left was not as severely wet and moldy as the attic in grudzinski s photos above.

These are commonly seen underneath roof vents plumbing stacks vent hoods and around chimneys. Mold can form but often it. 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. 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.

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. I live in nj. 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.

Precautions need to be taken to take you those around you and the environment as safe as possible. For attic ventilation apart from soffits i also have a power vent which operates based on temperature. 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. Be sure to inspect the entire area to rule out the possibility of other fungi affected.

So likely the nails are very cold in winter and warm air in attic condenses around that.