The test is carried out in an old house in Nyhavn, Copenhagen. The roof and the walls close to were heavily attacked by dry rot fungus (Serpula lacrymans) because damage to the zinc covering the frontspice were letting in water to the wood and wall construction. An attack by the dry rot fungus is more complicated to repair compared with other wood destroying fungi because beside the damage on wood, mortar in the walls is penetrated by the hyphae of the fungus. The reason for this is the need for basic building materials the dry rot fungus has to neutralize the great production of oxalic acid.

Download document (393 kb)
free for the members of IRG. Available if purchased.

Purchase this document