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lavorazione ardesia | coperture tetti in ardesia | ardesia ligure italiana | ardesia fontanabuona

tetto alla francese in ardesia | tetti in ardesia alla francese prezzo Classic french roof

Classic french roof
Classic french roof
The distinguishing feature of the French roof is the effect obtained by the slates laid in a “lozenge” formation. Sometimes, the tile is modified to a hexagonal shape, but the final design of the roof remains the same. The roof is laid using the double method and zinc nails may be used. As with the other types of roofs, work begins from the bottom i.e. the eaves with slates of different dimensions from the others. These are laid in such a way that each slate covers one half of the slate below, so that the finished roof has a double overlay.
H
L
S
57
57
0.5
57
40
0.5
57
30
0.5
57
20
0.5
57
57
0.5
57
30
1
40
30
1
57
40
1
40
30
1
30
30
1
50
50
1
40
20
1
misure in cm

H=altezza(height)L=larghezza(width)S=spessore(tichkness)

  • 40 x 40 slates, or 30 x30
  • 1cm thickness fixed with cement and zinc or stainless steel nails
  • Pendenza massima
    40 % (40 x 40)
    45 % (30 x 30)
  • 11 (40 x 40), or
    22 (30 x 30)  slates are required to cover 1 m2 of roof
  • the weight per m2 using slates of 5mm thick is 44 kg (40 x 40), or
    50 kg (30 x 30)