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ALFA grilles
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We can also make to measure to optimise your cladding projects. Contact our experts!
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Expanded metal walkways
ALFA GRILLES are suitable for the construction of gangways for the inspection and maintenance of roofs and photovoltaic systems.
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Standard and customised modules
The grilles are made with lateral strengthening folds that guarantee the loads required by Category H of the NTC 2018 (Technical Standards for Construction, Tab. 3.1.II):
- load capacity distributed 50 kg/m2
- load capacity concentrated 120 kg
Two widths are available: 250 mm and 300 mm. The length can be made to measure, not exceeding 2000 mm.
FAQ
To classify the anti-slip properties of floor coverings, German standard DIN 51130 tests each covering at 5 different angles of inclination in order to find the angle at which slipping begins. A material is deemed to have a low coefficient of friction when feet start slipping when the test ramp is set at a small angle.
Slip angle |
Slip resistance classes |
<= 6° | Not classified |
6° < α |
R9 |
10° < α |
R10 |
19 < α |
R11 |
27° < α |
R12 |
> 35° | R13 |
Fils gratings guarantee excellent anti-slip properties according to rigorous certification tests carried out by notified European certification bodies.