Have you been carefully (or not so carefully) monitoring that gravity-defying overhang of migrating snow that sits atop your roof? Glistening beautifully in the sun, it has stayed up there for days; it will surely stay up a bit longer, right? Sorry, no guarantee. Avalanches are unpredictable and catastrophic events. The snow will fall wherever and whenever it wants to – on you, a loved one, your car or sidewalk.
Tags: Snow Guards, Snow stops, sliding snow, snow retention, metal roof clamps, metal roof snow stops, metal roof clips, snow rails, snow stopper, snow clips, snow fence, snow bar, exposed fastener, roof panels, rooftop avalanche, rooftop mounting, maintain warranties, maintain roof warranty, non-penetrating, clamps, installing snow guards
Non-penetrating rooftop mounting refers to the ability to mechanically attach a clamp to a standing seam roof by gripping the seam in such a way that there is no penetration to the panel material. The best method for standing seam clamp attachment is via round-point setscrews
Using cup-point setscrews is ill-advised as such a screw point cuts through the paint and protective coating of standing seam panels, causing corrosion and voiding warranties.
In the metal roofing construction industry, mounting ancillary items is often a convenient and necessary aspect of desired performance. Obviously, the best way to maintain the integrity of a metal roof is to allow it to function only as a roof. But various rooftop utilities such as, HVAC, piping, walkways, vents, satellite dishes, snow retention, solar arrays, signage, fall protection, lightning protection, etc. all serve critical purposes and must attach to the roof.
Tags: metal roofs, Brackets, metal roofing, standing seam metal roof, exposed fastener, roof panels, rooftop mounting, cup point setscrews, corrosion, rooftop equipment, maintain warranties, maintain roof warranty, round point setscrews, weather proofing, rooftop utilities, dimple, mechanical compression, load tested, holding strength, non-corrosive, stainless steel
Best design and installation practices when using seam clamps to structurally attach PV systems to standing seam metal roofs
Standing seam metal roofing (SSMR) is the most convenient of any roof type for mounting PV modules, either crystalline or thin-film. The seams of SSMR are beam-like elements that not only add stiffness and flexural strength to the roof panels, but also provide expedient attachment points for a PV system. Joining PV modules to this roof type can be done with or without continuous mounting rails using aluminum seam clamps.
Seam Clamps and Mechanical Compression
These clamps anchor to the roof seam by pinching it within the clamp body with round point set-screws that are in no way invasive to the roof. The setscrew forces the metal of the standing seam into a recess in the opposing clamp wall, permanently deforming it in order to establish a mechanical interlock. The clamp body is machined with threaded holes to facilitate anchorage of PV modules or racking components to the clamp.