What are the black spots on my ceiling?

The most commonly seen cause of small black dots in homes is corrosion on fasteners holding the drywall to the wall and ceiling framing. This may be due to a poorly installed or thin air-vapour barrier, minimal insulation in the exterior walls or ceiling or a large moisture source in the home.Click to see full answer. Also, what causes dark spots on ceiling?Ghosting happens when mildly damp, warm and possibly sooty interior air condenses on the sections of walls and ceiling that are colder because they are that uninsulated section of the wood frame. The result: black sooty stains on your walls and ceilings that follow the patterns of the framing.Also Know, does water stain ceiling mean mold? Water stains are an indication of a water problem and hence the possibility of mold growth. Unfortunately, not all water damage is visible. Water damage can hide within walls, beneath floors, and in ceilings. Evidence of small, on going leaks may not be visible until mold has begun growing. Besides, what are these black dots on my wall? Insect droppings from spiders, flies and other insects may leave small, concentrated black spots on walls. Occasionally, black spots on walls are indicators of fungal spores and mold, some varieties of which can be severely toxic.What are the spots on my ceiling?When stains appear at the ceilings along outside walls at the corners, it’s typically the result of ice dam leakage. This is typically what it takes to prevent roof leakage from ice dams. Random ceiling stains, no roof leaks. Condensation that occurs in the attic is a common cause of random ceiling stains.

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