White Powder On Roof Trusses

Frankly nobody who actually knows much about mycology and mold would from looking at the white growth on a surface by naked eye assert that it is a species of aspergillus.

White powder on roof trusses.

The powder scrapes right off and there appears to be no damage to the joists. When you observe efflorescence it s an indication of moisture migrating through the concrete brick or stone. Efflorescence occurs when water moves through a masonry structure bringing unbounded salts to the surface. Mould white blue or black spots on timber lining felt masonry.

When the water evaporates a white fluffy structure is left behind. That could indeed be and looks like a white fungus or mold growth on roof sheathing. A potential buyer crawled under this house and found a white powdery substance on some of the floor joists. The client will certainly expect an explanation for this white material on the roof rafters in the attic.

Therefore we already know something about your third remediator and his or her claim. It is difficult to declare this one substance over another simply based on one s senses of sight or smell. White mold growth provides an additional challenge because it is often confused with efflorescence a crystalline growth structure found on concrete and masonry surfaces. Indicates condensation increase ventilation add soffit or ridge vents apply mould cleaner treat with boracol 10rh.

I found approximately 10 percent of the roof rafters covered in spots with a white powdery substance which i assumed to be mold. After all some mold shows up as a white powdery material but more often in a crawl space than an attic. The attic seems dry at present.