Discolored Wood In Attic
This is likely a mold or mildew of some type but testing from a specialist is needed for confirmation.
Discolored wood in attic. You have mold that should be removed. That could be harmful particularly if it is entering the living area. There are a couple of boards in the pictures that i circled that are a grayish color. Wood should never be soft.
In old houses you ll usually see some spots that are stained dark or black where there was a roof leak at some point in time which was repaired but the stain remains. I attached three pictures. When moisture droplets collect on wood surfaces in an attic a discoloration often occurs. While a lab test would be needed to reliably identify the genera species of the green attic mold you have found a common greenish coloured mold found in attics and roof spaces on wood surfaces includes several species of aspergillus sp.
Using a strong flashlight check the attic for discolored wood. If you find any perform the screwdriver test. But then i read that this could be mold. Attic feels excessively hot or stuffy attics should feel breezy if they are properly ventilated.
I don t think that necessarily looks like mold just the usual dark staining that can happen to wet wood and is mostly harmless. If the frost does melt it will further wet the wood in the attic staining it. Wood will discolor when dampened on a regular basis. Similarly if the mold has matured and degenerated it is difficult to recognize since it rubs off the surface leaving only stained spots or patches.
So i m confused the wood in the attic has black streaks discolorations. It s a good idea to check your attic periodically for signs of excess moisture. Commonly black discolorations on insulation material and wood can be difficult to distinguish from mold. Is that rotted wood.
Dark black staining on wood surfaces if the wood in your attic shows any black discoloration the problem has moved beyond moisture.