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.

Black around nails in attic.

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. I live in nj. Even our poorly vented attic below left was not as severely wet and moldy as the attic in grudzinski s photos above. So likely the nails are very cold in winter and warm air in attic condenses around that.

These are commonly seen underneath roof vents plumbing stacks vent hoods and around chimneys. Taking nourishing food is vital therefore you should add food containing vitamin b6 and b12 in your diet. The dark spots are only around the nails and on the floor below the nails. Be sure to inspect the entire area to rule out the possibility of other fungi affected.

And i suspect this happens during winter. If these isolated spots are seen away from these roof penetrations then the roof may be damaged and leaking. Mold growing on the sheathing in your attic is a serious problem that shouldn t be ignored. Deficiency of vitamin b6 and b12 is the chief cause of having dark skin around the nails.

Roof is new 5 yrs over an old layer. The presence of mold inside your home even if it. 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. 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 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. Does mold on attic sheathing have to be removed. For attic ventilation apart from soffits i also have a power vent which operates based on temperature. 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.

Mold can form but often it.