Dyna-Guard should only be installed after proper design work has been done by an engineer, architect, installer &/or building owner. Before installing Dyna-Guard, make certain that the roof & building can withstand the load and forces that will be exerted on this snow retention system. This load will be completely transferred to the building structure.
Attention Architects & Specifiers
If you are an architect or specifier, please visit Dynamic Fastener’s ARCAT page for CSI 3 part specifications and CAD details on Dyna-Guard products.
Dyna-Clamps are an essential component for mounting Dyna-Guard and can be used with a variety of other attachments to standing seam metal roofs. They are non-ferrous, non-piercing, and have gone extensive third party testing by the esteemed Encon Technology in Tulsa, OK. Dyna-Clamps come pre-packaged with stainless steel round-point setscrews (that won’t pierce the panels), stainless steel bolts, and 1 driver for the setscrews per box.
The most popular and versatile clamp is the DC-U, which can be positioned in 4 orientations, which allows for use on a variety of vertical and horizontal seam panels (pictured below). It is designed to fit approximately 85% of standing seam roof profiles in North America. Plus, the clamp can be positioned such that the bolt can be up slope or down slope, depending on your application.
In addition to the versatile DC-U, Dynamic Fastener has 12 other Dyna-Clamps to accommodate many different profiles of standing seam metal roofs.
Another essential component of Dyna-Guard are Sno-Dams, which inhibit the ability of snow and ice to slide under Dyna-Guard. They slide on the back of Dyna-Guard rails from either end and it is necessary that they are installed between every seam of the roof. Retro-fit Sno-Dams are also available, which are designed to be firmly pressed onto the back of previously installed Dyna-Guard and then secured with a supplied screw.
All Sno-Dams are 3″ wide and can cover seam heights anywhere between 1″ to 3″. Sno-Dam 2’s are for seam heights of 1″ to 2″ and Sno-Dam 3’s are for seam heights of 1-3/4″ to 3″.
Other Dyna-Guard Components
DYNA-CLIPS® are used as an option to attach unpunched Dyna-Guard to Dyna-Clamps. Dyna-Clips are necessary to use if the roof seams are not divisible by 4” or 6”, or if the Dyna-Guard is not being installed perpendicular to the seams.
DYNA-CORR™ is a mounting attachment used to attach unpunched Dyna-Guard or practically anything to 7/8″ or 3/4″ corrugated roofing.
DYNA-MOUNTS™ are used as an attachment device to secure Dyna-Guard or practically anything to almost any exposed fastener trapezoidal metal roof. These mounts are offered in two different heights: 1.86″ and 2.65″.
DYNA-GUIDE™ is a proven time and labor saving when unpunched Dyna-Guard is being installed, if Dyna-Clips are not being used. After the Dyna-Clamp is attached to the standing seam, simply rest the Dyna-Guide on top of the clamp and drill a 3/8″ hole using the hole on the guide. Two Dyna-Guides are available for use with DC-U, DC-NF, & DC-DF clamps.
For more information on DYNA-GUARD® snow retention,
open pages 66 – 69 of our 2021 Hand Guide
DYNA-GUARD installation instructions are also available for detailed steps and tools required.