Timber

Question 1

Wet Rot

Answer 1

Two types : Brown and White
moisture content of 20% or more
Humidity of 50%/60% moisture co efficient.
Darken and Bleach timbers.
Cracking typically along grain.
fruiting bodies rarely seen but green/brown (olivey), and have yellow/white edges. Yellowy hyphase
Generally localised and can not spread through mater.
TREATMENT : remove source of water. Replace structurally damaged timbers.. DRY OUT and FUNGICIDE. Install replacement timbers.

Question 2

Dry Rot

Answer 2

TYPE: BROWN ROT causes severe decay. 
Timber becomes dry and dark. 
Humaditiy 20/22% coefficient 
Cuboidal cracking (although possible in wet rot)
APPERANCE - COTTON WOOL - mycalium
BRICK RED - Spores
WHITE PANCAKE - Fruiting bodies
Treatment - remove source of moisture, remove material 1m beyond point of last infection, apply a suitabel fungicidal treatment, incinerate affected timbers on site, pre treat new timber (BS6268-5   1989), Treat retained timbers to BS5707     1997)

Question 3

Difference between Wet and dry Rot

Answer 3

humaditiy Levels

Question 4

Dog to detect Rot

Answer 4

Hutton+Rostron.

Question 5

Timber infestation

Answer 5

Furniture Beetle (woodworm) – attacks both soft and hardwood, leaves small flight holes that will only structurally compromise the timber in large numbers over a longer period (years).
Deathwatch Beetle – attacks both soft and hardwood.
Longhorn Beetle – mainly attacks soft wood.
KEY TERMS FLIGHT HOLES, FRASS