Blizzard Heavy Duty III with S-5!® Q Clamps

Fence-Style Snow Guard Bracket

The Blizzard Heavy duty III Q aluminum 3-pipe clamp-to-seam bracket with two attached S-5!® Q standard size clamps for clamp-to-seam fence-style snow retention systems in areas with high snow loads.  The S-5!® standing-seam clamps are designed to affix directly to the vertical seams of metal panels without penetrating the seam by tightening the included setscrews.

Use the S-5!® Q clamp ("Q" represents the shape of the clamp) on metal standing seam roofs with large "bulb" seam configurations up to 1.14" (29 mm).  The clamp features a two-piece design that makes it easy to install anywhere along the seam.  The Q clamp will also fit smaller, round "bulb-shaped profiles with diameters of 0.75" (19 mm) or less if the seam is not properly closed.  Includes 2 aluminum inserts and 4 stainless steel setscrews per bracket.

Blizzard Heavy Duty III bracket is part of a complete system designed for applications with high snow loads.  This is our tallest clamp-to-seam snow retention system for standing seam metal panel roofs.  Use of the Blizzard Heavy Duty III bracket may reduce the number of rows needed for some roof sections.

Downloadable Files

Available Material & Finish

  • Mill Finish Aluminum
  • Coated Aluminum

Price Options*

Mill Finish Aluminum w/ (2) S-5! Q Clamps
Powder Coated Aluminum w/ (2) S-5! Q Clamps

Prices include shipping in the contiguous 48 States
* For Contractor Pricing: call 877-414-7606 or