Vertical timber cladding: a guide to maintaining its performance and natural appearance

Abstract

This study was chosen as an introduction to the use of vertical timber cladding in New Zealand, and how its performance and natural appearance could be maintained in the external environment. The first part of the report deals with the properties of timber, and its degradation by the action of water, ultra-violet light and other harmful agents. The later sections deal with the prevention of this deterioration, through the use of: A -correct seasoning, selection, and handling of timber B -and appropriate design detailing C -natural finishes D -preservatives None of these sections should be relied upon solely to protect the timber. They all need to be considered if cladding is to be an effective barrier to the elements and maintain its good looks.