The patented system prevents
- Decaying caused by rainwater.
 - The collection of dirt and dust, which can deteriorate the ropes.
 - The premature damage of the pietta net system.
 
        
                              
                Upper pulley
                Lower pulley
                Lateral guide's upper part
The patented system prevents
| Width: | Max 2000mm | 
| Height: | Max 3000mm | 
| Width: | Max 3800mm | 
| Height: | Max 3000mm | 
          European Patent EP2549053 ES, TU, SR, FR, DE, NL, IT, GR
Australian Patent AU2012204143