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.

So likely the nails are very cold in winter and warm air in attic condenses around that. 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. Deficiency of vitamin b6 and b12 is the chief cause of having dark skin around the nails.

After several years of this there may be dark rings around protruding roofing nails and larger dark spots or areas on the roof sheathing and or exterior gable walls. 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. And i suspect this happens during winter.

Mold can form but often it. Mold growing on the sheathing in your attic is a serious problem that shouldn t be ignored. Roof is new 5 yrs over an old layer. If these isolated spots are seen away from these roof penetrations then the roof may be damaged and leaking.

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. Does mold on attic sheathing have to be removed. The dark spots are only around the nails and on the floor below the nails.

Roof leakage can often be seen as dark black stains concentrated and radiating out from one or more individual locations. These are commonly seen underneath roof vents plumbing stacks vent hoods and around chimneys. Precautions need to be taken to take you those around you and the environment as safe as possible. 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.

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.