The Blizzard Heavy Duty II H aluminum 2-pipe clamp-to-seam snow fence system.  Brackets come with two attached S-5!® H standard clamps for standing seam metal panels.  Effective for snow retention in areas with high snow loads.

The S-5-H clamp ("H" is for "Horizontal" seam) is designed for horizontal seams that include a vertical leg and that are not fully closed. The setscrews are side-install rather than top-down.

The S-5!® standing-seam clamps are designed to affix directly to the vertical seams of the metal panels without penetrating the seam by tightening the included stainless steel setscrews.