About Rising Damp To the Start Page Terms and Conditions
About Wood Rot:
Dry Rot and Wet Rot


Dry Rot
Serpula lacrymans

Dry Rot is caused by a fungus called Serpula lacrymans (S. lacrymans) and is unquestionably the most insidious of all troubles that beset buildings - the first sign of its presence may be the structural collapse of a section of apparently sound timber.

S. lacrymans is constructed of hyphae and mycelium and such structures are able to conduct moisture throughout a piece of timber and they are also able to penetrate and spread over relatively dry brickwork and masonry. This moisture-conducting ability allows S. lacrymans to spread from one area of timber to another area, which one may have supposed might have been too dry to become infested. In addition, as the wood cellulose - the food source for S. lacrymans - is broken down, the carbon dioxide and water which are formed as breakdown products further assist the spread of S. lacrymans.


Wet Rot
Coniophora puteana
Wet rot is caused by a fungus called Coniophora puteana (C. puteana). Timber attacked by C. puteana appears dark coloured, and logitudinal cracking will be evident. The fungus is localised, so unlike Dry Rot it cannot penetrate brickwork, and its requirement for high moisture levels usually prevents it from forming a fruiting body in buildings. However, though a less advanced fungus than Dry Rot, the national cost (in the UK) of repairs due to Wet Rot is far higher than for repairs due to Dry Rot...

The Mine Fungus, Poria vaillantii tends also to be included under the heading of Wet Rot.



This web site is designed and managed by didilogix.com
All content on this web site © 2001-2004 didilogix.com and Astons - All Rights Reserved.