This gives guidance on the selection of plywood for use in the different use classes given in EN 335-1. It takes into account the natural durability classification for solid timber (see EN 350-2) together with other factors specific to plywood. Durability against chemico-physical factors such as weathering, is not covered, nor does it consider the biological durability of the adhesive.
The standards covers:
Precautionary measures for use
Influence of plywood composition on biological durability
Use of plywood in different use classes