#Knots_from_the_book_on_the_roof. From sketch to implementation

This section presents some of the components described in the literature from the "Double-lock standing seam technology" series and implemented by metal roofers.

Node name:

     Symmetrical combined junctions

Detailed description of the node:

     In Book 1 "Double-lock standing seam technology. Pipes and penetrations"  

   The node presented in the photo implemented:

     Daniel Biro (Biró Profil),
    Hungary