White Spots On Attic Rafters

White mold tends to grow in high humidity environments rather than areas suffering from total saturation.

White spots on attic rafters.

The presence of mold inside your home even if it. The vast majority of attic mold is caused by humidity which is why white mold growth is common here. 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. Attic sheathing and framing.

In the attic photograph at left we show a mix of green gray and white attic mold. After all some mold shows up as a white powdery material but more often in a crawl space than an attic. Rafters sheathing joists attic side of fascia boards etc. Look in the gutters for signs of asphalt granules that have washed off and expect to need a replacement.

Light spots on roof shingles dark colored asphalt shingles may appear lighter and patchy as they age. Roof leaks will often lead to a small localized area of attic mold near where the leak is occurring. Check for areas of dark discoloration staining of wood e g. How to naturally treat kill attic mold.

Wood sap can hang from rafters in a long drop that resembles a long tear drop. After reading your article regarding mold i checked out my 36 year old home and found very little except in the attic. The attic is basically a crawl space with loose insulation between the ceiling joists. What does wood sap on rafters look like.

Below are a few ways to check for possible roof leaks. If not caught early sap can harden and crystallize. Mold growth in an attic comes as a consequence of excess moisture. I found approximately 10 percent of the roof rafters covered in spots with a white powdery substance which i assumed to be mold.

Mold growing on the sheathing in your attic is a serious problem that shouldn t be ignored. It is difficult to declare this one substance over another simply based on one s senses of sight or smell. Does mold on attic sheathing have to be removed. This is why it s less common to see mold growth on base trim after a flooding event.

Water stains if the discoloration seems to be damp check the attic or ceiling below the roof stain and investigate for a leak. Initially sap sweats out of rafters in liquid droplets that can range in color from yellow to a dark red or amber.