White Mould On Roofing Felt

Indicates condensation increase ventilation add soffit or ridge vents apply mould cleaner treat with boracol 10rh.

White mould on roofing felt.

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. 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. You want the area to be free from anything that can add to or create a new problem. Common food sources for white mold include wood drywall carpeting laminate insulation and any other organic carbon rich material.

White mold commonly looks like bright fluff like spots that spread on numbers of surfaces from plants to wood and even bread. White stains on slate roofs may indicate roof age white stains formed on roofing slates such as in the roof pictured here are almost always a white mineral salt deposit or effloresence left by the evaporation of water that was absorbed into and that dissolved salts within the roofing slage. You can use a light brush to go over the area to sweep away and to loosen up the dried mold for easy removal. Efflorescence occurs when water moves through a masonry structure bringing unbounded salts to the surface.

When seeing under the microscope the body of the mold will look like filaments. White mold growth provides an additional challenge because it is often confused with efflorescence a crystalline growth structure found on concrete and masonry surfaces. The best temperatures in which mold grows is between 2 and 40 degrees celsius. Mould white blue or black spots on timber lining felt masonry.

They can appear as numerous white spots or blots or even small fibers when the growth is uncontrollable. Remove an dirt or debre from around the mold spot on your felt fabric.