White Powdery Substance On Attic Rafters

It is difficult to declare this one substance over another simply based on one s senses of sight or smell.

White powdery substance on attic rafters.

White mold is lesser known but still an incredibly dangerous species of mold to deal with. This mold has been known to. In the attic photograph at left we show a mix of green gray and white attic mold. Wood is one of white mold s favorite habitats just like its outdoor counterpart.

The client will certainly expect an explanation for this white material on the roof rafters in the attic. Is it dangerous how to remove it. The attic is basically a crawl space with loose insulation between the ceiling joists. This is why it s less common to see mold growth on base trim after a flooding event.

After all some mold shows up as a white powdery material but more often in a crawl space than an attic. The appearance of white mold on wood can reduce the aesthetic and spread health risk. In the outdoor white mold is a common name of sclerotinia sclerotiorum a type of parasitic fungi that attack plants. The vast majority of attic mold is caused by humidity which is why white mold growth is common here.

If you re ever unsure of what type you have calling in certified professionals to perform mold testing services immediately is important. White fuzzy mold on plants. White mold tends to grow in high humidity environments rather than areas suffering from total saturation. The photo at page top shows white attic mold on the roof sheathing and rafters and some brown or black mold on the attic side of ceiling drywall where we pulled back insulation.