7. Timber Classifications for External Use

7.1 Any timber used external of the building/wall must be a timber of a suitable durability class for external use. Refer to tables 1 and 2 below to prevent post construction deterioration and failure of the timber used and suitable for its intended purpose.

Above - Poor selection of timber for the intended purpose (1 month old)

Above - Suitable selection of timber for the intended purpose – same area