This article describes the causes cures for white stains or white deposits on building roofs.
White mould on roof felt.
Asphalt shingle wood shakes or shingles stone roofs slate roofs.
Typical roof mould damp cold timber condensation mold growth.
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 stains on building roofs.
Widespread white mould in loft.
Note the roofing felt many old roofs are upgraded by installing roof lining felt this.
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.
Indicates condensation increase ventilation add soffit or ridge vents apply mould cleaner treat with boracol 10rh.
We describe common causes of white blotches or staining on roofs of different materials.
If you re ever unsure of what type you have calling in certified professionals to perform mold testing services immediately is important.
Is it dangerous how to remove it.
Insulation was found to have been pushed into the eves of the building as well as between the rafters.
We discuss roof cleaning approaches using chemicals and the most gentle possible means so as to avoid damaging.
Discussion in floors stairs and lofts started by sarah123 13 feb 2014.
White mold is lesser known but still an incredibly dangerous species of mold to deal with.