H3
OUTSIDE ABOVE GROUND
CONDITIONS: Subject to periodic moderate wetting.
BIOLOGICAL HAZARD: Moderate decay fungi, borers and termites.
EXAMPLES: Weatherboard, fascia, pergolas (above ground), window joinery, framing, decking and laminated verandah posts.

H3A**
OUTSIDE ABOVE GROUND
CONDITIONS: Products predominantly in vertical exposed situations and intended to have the supplementary paint coat system that is regularly maintained.
BIOLOGICAL HAZARD: Moderate decayfungi, borers and termites.
EXAMPLES: Fascia, barge boards, exterior cladding, window joinery, door joinery and non-laminated verandah posts.

H2
INSIDE ABOVE GROUND
CONDITIONS: Protected from wetting
BIOLOGICAL HAZARD: Borers including termites.
EXAMPLES: Framing, flooring and similar, used in dry situations.

H2F
Conditions and biological hazard as for H2 although approved for use South of the Tropic of Capricorn only. Example: Framing (envelope treatment)

H2S
Conditions and biological hazard as for H2 although approved for use South of the Tropic of Capricorn only. Example: LVL/Plywood (glue-line treatment)