#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:

    "Weakening" seams at their intersections

   Detailed description of the node:

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

Section "Weakening" seams at their intersections

   The node presented in the photo implemented:

   Copper works @ricocopper_ ,
   USA