Most of the roof panel manufacturers prefer the clamp-on snow guards due to the non-penetrating attachment and not interfering with the roof panel warranty. This attachment method yields the strongest holding strength of the non-penetrating methods.įurthermore, there are screw-down brackets for the widely popular exposed fastener roof panels. There are clamps on snow guards that attach to the standing seam ribs and use set screws to mechanically attach. There are plastic/ metal individual pad-style snow guards that have to be glued to the roof panel in which the glue will have a certain holding strength that is less than a mechanically attached option. How the snow guard system attaches to the roof is crucial in the selection process. Did the roof slope change? Was the roof material changed from asphalt shingle to metal? A metal roof will be a much slicker surface compared to asphalt shingle so snow and ice will slide off that was not happening before. Also, re-roof projects that did not originally have a system in place may now need one. Architects and contractors are incorporating snow retention systems in the original design of new construction projects but there is still a great amount of buildings that do not have snow retention. A properly designed and installed system will retain the snow on the roof and prevent damage to gutters, signage, lighting, landscaping, canopies, awning, and vehicles and most importantly of all: people. The key purpose of a snow retention system is to hold and retain snow/ice on the roof and allow a controlled evacuation of the snow, which will help protect your assets and decrease your liability.
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