BRANZ. Welcome to BRANZ

Login

My BRANZ.

  BU575 Timber treatment

BU575.jpgTimber is a natural organic material. Many species can be subject to insect attack and fungal decay under damp conditions. Protecting the timber with chemical wood preservatives increases resistance to fungal decay and wood-boring insects.

This bulletin outlines the requirements for timber durability and the preservative options available and incorporates information resulting from Amendment 5 to NZS 3640:2003 Chemical preservation of round and sawn timber.

The bulletin covers:

  • Building Code and standards
  • timber durability and preservation
  • preservative treatments
  • treated timber in use
  • in situ treating of existing framing timbers.

Publication date: August 2014 Keywords: floor, framing, pole house, preservative, rot, safety, timber