Please note that this is a scanned copy of a paper originally published in 1985 and revised in July 1993, so the text is not as clear as in documents created as pdf files.

Decay of timber occurs only when wood is allowed to remain wet over long periods. In buildings the most serious type of decay is dry rot, which is caused by the fungus Serpula lacrymans. This Digest explains how to recognise dry rot and how to eradicate it. 8 pages.