Fungus On Roof Timbers

A fungus is described according to the colour of the damaged timber white primarily found in hardwood or brown favouring softwood.

Fungus on roof timbers.

Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest. Alternatively it may be classified as either dry rot a brown rot caused by one fungus serpula lacrymans or wet rot white or brown rots caused by various fungi commonly coniophora puteana. Generally water leaks and poor ventilation leading to condensation are the main roof defects which give rise to a variety of fungi moulds and insect attacks. When seeing under the microscope the body of the mold will look like filaments.

They can appear as numerous white spots or blots or even small fibers when the growth is uncontrollable. Algae will devour your shingles and is also attracted to moisture. There are four common types of roof fungus that cause the most problems whether it be damage to your home or your health. The fungus which thrives in moist unventilated conditions will penetrate brickwork to get to more timber and can cause widespread destruction of structural timbers skirting boards and door frames and wood flooring.

The first one we will talk about is algae. White mold commonly looks like bright fluff like spots that spread on numbers of surfaces from plants to wood and even bread. This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate. In the vast majority of cases the mold growth is caused by condensation.

Re roofing with lining lining papers sarking roofing felt can cause severe mold growth and rot due to reduced ventilation.