White Mould On Roof Felt

The mould growth we can see in the picture below was caused by over insulating the roof void and as a result creating a lack of ventilation in the roof space.

White mould on roof felt.

Note the roofing felt many old roofs are upgraded by installing roof lining felt this. Indicates condensation increase ventilation add soffit or ridge vents apply mould cleaner treat with boracol 10rh. This article describes the causes cures for white stains or white deposits on building roofs. Mould white blue or black spots on timber lining felt masonry.

Is it dangerous how to remove it. Typical roof mould damp cold timber condensation mold growth. I ll assume you mean condensation on the underside of the roofing felt which means there is moist air in the loft space otherwise there could be no condensation this needs to be vented. Discussion in floors stairs and lofts started by sarah123 13 feb 2014.

We describe common causes of white blotches or staining on roofs of different materials. With that said we ve learned quite a bit about white mold in our many years of mold inspection and removal. Widespread white mould in loft. White stains on building roofs.

Roofing felt is comprised of a base made from natural materials such as wood cellulose or synthetic ones such as fiberglass or polyester and then coated or saturated with a protective coating such as bitumen asphalt which repels water but still allows the product to breathe. White mold is lesser known but still an incredibly dangerous species of mold to deal with. Insulation was found to have been pushed into the eves of the building as well as between the rafters.