White Mold On Roof Trusses

When looking for attic mold trace both leak.

White mold on roof trusses.

Mold growth in an attic comes as a consequence of excess moisture. Home house mold what causes attic mold how to remove it. This growth will cease once the moisture content drops to 19 or less. In the attic photograph at left we show a mix of green gray and white attic mold.

To prevent future mold growth remove the source of moisture causing it. If the wood used in trusses is kiln dried the moisture content is equal to or less than 19. The vast majority of attic mold is caused by humidity which is why white mold growth is common here. If there is a leak in the roof plumbing or windows the mold will reappear if the water is.

Mold growth provided it is not just cosmetic mold which can simply be left alone can be cleaned from wood surfaces by blasting scrubbing or even simple surface wiping depending on the surface accessibility and. Prevent future mold growth. Fungus and mold will grow on the trusses if the lumber moisture content exceeds and remains above 20. This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.

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. Generally tearing off a roof and roof sheathing and perhaps roof framing to remove mold would not be sensible nor cost justified. White mold tends to grow in high humidity environments rather than areas suffering from total saturation. Attics tend to have the perfect conditions for mold growth hot humid and an abundant food source with the wood sheathing.

Mould white blue or black spots on timber lining felt masonry. Typical roof mould damp cold timber condensation mold growth. Attics are one of the most common areas of mold growth in the home. Faulty roof insulation or construction can lead to leaks and a lack of proper ventilation can cause humidity to accumulate.

Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest. Indicates condensation increase ventilation add soffit or ridge vents apply mould cleaner treat with boracol 10rh.