SQUARE DOUBLE ROOFING 11 EXAGON
Suitable for roofs with a pich greater than 40%.
We have already shown the aesthetic importance in choosing the type of “roof” covering for every type of construction. By using slate slabs 57x30x1 cm. and trimming them at the base, a particularly pleasing hexagon shape is obtained when installed, as can be seen in the photo. This type of roofing is technically similar to the double roofing + 11 cm of overlap on the 3rd row and therefore is just as strong and has all the fundamental characteristics of impermeability, insulation and resistance to the elements typical of slate roofing.
- Slate slabs 57 x 40 cm, 9/10 mm thick, or
57 x 30 cm, 9/10 cm thick
- Fixing: 11 cm hooks in stainless steel or
copper, 3 mm diam., better if 4 mm diam.
In the enlargement: detail of the copper riser that prevents water see page.
A – slab length = 57 cm
B – slab width = 40 or 30 cm
C – slab to cover the width + 50% of “B” width
D – starter slab length = 34 cm
E – exposed slab length = 23 cm
F – vertical lath distance = 60/70 cm
G – size of horizontal lath = 4 x 3 cm (starter shim 4 x 4)
H – length of hook = 11 cm
P – horizontal lath gauge = 23 cm
Requirements for covering 1 sq. m. of roof:
-10 slate slabs 57 x 40 cm + 10 hooks
-14 slate slabs 57 x 30 cm + 14 hooks
Total weight per 1 sq. m. of roof = 60 kg
(with 57 x 40 or 57 x 30 slabs, 10 mm thick)
TOTAL THICKNESS OF SLATE COVERING = 20 / 30 mm