1. Application to canal tile roofs

The Guide to Roofing in Mountain Climates does not include this material for this climate zone. Nevertheless, it can be used in cold climates, but requires thermal insulation. The corresponding provisions can be found either in the :

• masonry structural work (supporting floors with insulating hourdis) ;

• roofing (using terracotta shingles or herringbone panels).

In certain regions subject to the effects of powdery snow, the watertightness resulting from snowmelt can be treated either by :