WOODWORM – DRY/WET ROT
At ICS we can offer accurate diagnosis and treatment of woodworm caused by wood-boring insect infestations along with dry and wet rot fungus.
DRY ROT (Serpula Lacrymans)
This fungus causes decay primarily under conditions of restricted ventilation, and high humidity, the optimum moisture content for decay being 30-40% moisture content.Dry Rot can remain active in timber down to 20% moisture content and can attack dry timber.
The fungus can grow throughout the fabric of a building if conditions are suitable. It can penetrate through brickwork and masonry, and behind plaster, decaying any timber in its path. Decaying timber develops ‘cuboidal’ cracking, and usually overgrown by masses of grey/white mycelium. Plate-like fruiting bodies produce millions of rusty-red spores (seeds) as a reddish dust. These spores spread the fungal infestation to other sites.
COMMON FURNITURE BEETLE (Anobium Punctatum)
‘Woodworm’ is the commonest cause of insect attack of soft woods in buildings, often found in structural timbers, roofs, floors and joists. The female adult beetle lays eggs on the susceptible timbers. These hatch into larvae, which burrow into the timber, progressively weakening it. This stage lasts at least three years, and when fully grown, larvae are 2.5mm long. Adult beetles emerge from the timber, at the completion of the pupal stage, through a 2mm diameter flight (exit) hole.