This section deals with materials and methods for dealing with decay and damage caused by damp and pests in buildings. This includes fungal damage and the effects of beetle infestation in old timbers. New Building Regulations require more attention is paid to the prevention of damp and condensation in new buildings and the use of appropriate materials and methods when renovating older properties. The repair of some listed structures may involve replacing like for like even though this will not meet current regulations. We hope to list specialist advisors who can help to overcome problems in this area.