USES OF SLATE > ROOFS COVERING > TYPE OF COVERING > French
Lastra Slab

A cm

B cm C cm D cm E cm F cm P cm Spessore Thickness Ganci/mq Hooks/mq Lastre/mq Slabs/mq Peso/mq Weight/mq
30x30 24.4 34.4 17.2 21.2 8 60÷70 14 9÷10 21 21 50
40x40 34.4 48.6 24.3 28.3 8 60÷70 20 9÷10 11 11 45

Thickness of a slate mantle: 20/30 mm
Fixing with copper or stainless steel hooks or nails