I have a small area of grey-white mold on the sheathing boards of my attic. I fixed my moisture issue and sprayed it with a homemade concrobium mixture (TSP, Sodium carbonate, borax). Its been dry for over a year. The mold looks dead but you can still see some of the grey-white frost. Do I need to remove the mold remnants? If so, how? I'm considering sealing myself into my attic with PPE and respirator, then dry brushing it away - possibly with a brush attachment on a drill. The boards aren't smooth, which complicates the situation somewhat.... I'm also considering retreating with the same concrobium solution when it warms up again (currently December in Pennsylvania). Much of the mold is at the eaves and they are difficult to access. I've already fallen through a ceiling once. This pic isn't my attic, but in the bad parts, mine looked like the left half of the middle board on the left... so less than 50% affected before treatment. Now those areas are less bright but there is still a chalky grey remnant.
Should I spray with a mold primer? I feel like that any moisture that would enter the wood would be stuck in the wood if one side was sealed.
PICTURE is from the internet. My boards started out about speckled similar to the left half of the middle board and now its a darker grey after one treatment. Looks dead to me.
Should I spray with a mold primer? I feel like that any moisture that would enter the wood would be stuck in the wood if one side was sealed.
PICTURE is from the internet. My boards started out about speckled similar to the left half of the middle board and now its a darker grey after one treatment. Looks dead to me.