Treatments – hazards that effect the durability of wood
Hazards to wood include:
- Biological – Insects, Fungi, Bacteria
- Chemical – Strong acids and alkali
- Physical – Wear and tear, the elements.
These are described in more detail in Hazards – Printable PDF.
Preservative standards specify the levels of protection against the potential threat of the most important biological hazards to timber in any particular end-use application, Hazard Classes.
This is achieved through the impregnation of a chemical treatment to eliminate or minimise any future in-service susceptibility to these hazards.
NB: The code has changed as of April 2011 to use H1.2 for Timber Treatment for enclosed framing. Read the brochure Pink is Tough – H1.2 Frames it Right here.
All other website information is being updated gradually.