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E_MH_Mounting_instructions_Skylux_Climalux
GX
GX + V822
GDX
GDX + V14105
3000
4000
5000
6000
7000
8000
9000
10000
P
D
350 N/m² & 1/200
Load graphs gutter profiles
For roofs with glass
The graphs below can be used to determine the free span for each type of gutter (support). This is the distance
(P) between your supports (posts) in function of the load and the depth (D) of your roof. The maximum bending
for a construction with glass is 1/300.
The load is the sum of the weight of the glazing and the snow and wind load
applied to the roof.
Practical example:
The roof has a width (B) of 3000 mm and a depth (D) of 3500 mm. The prescribed load is 500 N/m² (~ 50 kg/m²).
The glass weighs 25 kg/m² (ca 250 N/m²). The total weight is 750 N/m².
Determine the point in the “750 N/m² & 1/300” graph and select a gutter (support) above this point.
The graph now has two options:
Either you select the gutter GX with reinforcement V822 which allows a free span of 3170mm.
Or you select a gutter rafter GX without reinforcement V822 for maximum span of 2800 mm. You then have to
install an extra post in the middle for support.
The maximum bending (1/300) in the middle with a load is 3000/300 = 10 mm. Less if unloaded.
The maximum deliverable length of the gutter profiles is 7 metre.
GX
GX + V822
GDX
GDX + V14105
3000
4000
5000
6000
7000
8000
9000
P
D
350 N/m² & 1/300
2000
3000
4000
5000
6000
7000
8000
P
D
500 N/m² & 1/300
2000
3000
4000
5000
6000
7000
8000
P
D
750 N/m² & 1/300
2000
3000
4000
5000
6000
7000
P
D
1000 N/m² & 1/300
