Commonly found in older properties or occasionally in newer ones experiencing penetrating dampness, dry rot presents distinct characteristics in appearance and its impact on timber. Affected timber exhibits a burnt appearance and easily disintegrates when disturbed. The fungus manifests as a web-like growth with white strands emanating from the centre, resembling a spider’s web. Once spores take hold, they can spread up to 18 meters, traversing walls and masonry to seek out new material for consumption.
To address dry rot:
- Stripping continues until over 1 meter of clean, unaffected material is exposed.
- All infected materials are meticulously bagged in sealed containers before disposal in landfill.
- Walls, blockwork, and substrates are generously treated with an anti-fungal spray to eliminate hidden spores.
- Timber joists requiring reinstatement are protected at exposed ends with bitumen material before being relocated.
- All new and freshly exposed timbers undergo treatment before reinstatement works commence.
