White Mold On Attic Rafters

Roof leaks will often lead to a small localized area of attic mold near where the leak is occurring.

White mold on attic rafters.

The vast majority of attic mold is caused by humidity which is why white mold growth is common here. Attic mold is often caused by warm moist air from the house leaking into the attic space. Indicates condensation increase ventilation add soffit or ridge vents apply mould cleaner treat with boracol 10rh. This causes condensation to form on the cold surfaces in the attic especially roof rafters sheathing and trusses.

With that said we ve learned quite a bit about white mold in our many years of mold inspection and removal. Rafters in the attic floor joists in the basement or crawlspace and wooden furniture are all places where you can find white mold. Mold growth in an attic comes as a consequence of excess moisture. Check for areas of dark discoloration staining of wood e g.

When looking for attic mold trace both leak. Rafters sheathing joists attic side of fascia boards etc. Then evaluate the area to determine how best to address the mold issue. White mold tends to grow in high humidity environments rather than areas suffering from total saturation.

Attic sheathing and framing. This is why it s less common to see mold growth on base trim after a flooding event. Mould white blue or black spots on timber lining felt masonry. If you re ever unsure of what type you have calling in certified professionals to perform mold testing services immediately is important.

Various cleaning agents can tackle mold such as a simple dish detergent and water solution or a stronger method like diluted bleach. Is it dangerous how to remove it. Typical roof mould damp cold timber condensation mold growth. 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.

If you let the mold grows it can become bigger white blotches and even into fiber like component if the mold colony grows too large. Note the roofing felt many old roofs are upgraded by installing roof lining felt this. White mold penetrates porous surfaces such as wood sheetrock and furniture. White mold is commonly found growing on wood surfaces.

When you see white spots on wood they are almost certainly white mold since efflorescence cannot appear on wood. Before cleaning white mold put on protective gloves eyewear and a respirator. Faulty roof insulation or construction can lead to leaks and a lack of proper ventilation can cause humidity to accumulate. In the attic photograph at left we show a mix of green gray and white attic mold.

You actually want your attic to remain very cool during colder months for this reason.