White Powder On Exterior Walls
White Powder On Exterior Walls. Most of the top floor of the house is painted in a taupe color, in the correct sunlight you can see the same powdery build up but in streaks. There's also white stuff around a hole in the ceiling.
White mold that looks at first glance like dryer fluff, polyfill or fiberglass. Accumulation of cosmetics, soaps, or cleaning products. Contain water soluble salts that are the source of the white deposits.