A trapezoidal roof profile has a ribbed trapezoidal-shape pattern across the panel. This means, it is a quadrilateral (or a four-sided shape – see Figure 1) that has just a single pair of parallel sides. Sometimes, trapezoidal roofs are mistakenly referred to as corrugated. This is a misnomer as the corrugated profile has a repeating wavy pattern across its surface.Trapezoidal rib roofs are popular with producers because the shape makes them very material-efficient (a high strength-to weight ratio). This makes for a very cost-effective profile. The shadows of the trapezoidal shapes offer clean lines whether installed vertically, diagonally, or horizontally. They also possess good structural characteristics and can carry design loads well (e.g. for snow and wind uplift). However, it is not considered as premium a profile as standing seam due to its attachment method.
The International Roofing Expo (IRE) recently concluded in Nashville, TN. Now that the busy din of the show has subsided, it is a perfect chance to reflect on the show’s success. What did those who actually went think of the show?
A corrugated panel has a repeating wavy or rippled pattern across its design. It was the first mass-produced metal panel design in the United States. These panels can be used for roofing, siding, decking, and flooring. Corrugated panels are connected by overlapping the sheets, and then securing them in place with exposed fasteners.
Tags: Solar, Roof Clamps, pv modules, metal roof clamps, Brackets, metal roofing, exposed fastener, solar PV, rooftop mounting, rooftop equipment, rooftop utilities, load tested, non-corrosive, stainless steel, corrugated, EPDM, UV Exposure, butyl sealant
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
It’s time! IRE – the International Roofing Expo has started in Nashville, TN. It officially runs February 11-13 in Music City Center. The exhibit hall in the Center is located in downtown Nashville – incredible roofing products and within walking distance to restaurants and local music venues. What could be better?
Tags: Solar, Roof Clamps, pv modules, Snow Guards, sliding snow, metal roofs, snow retention, S5 clamps, metal roof clamps, solar mounting, Brackets, metal roofing, standing seam metal roof, snow stopper, snow bar, exposed fastener, roof panels, PV technology, direct mount, PV array, photovoltaic, rail mounted, rail less, solar PV, solar technology, rooftop mounting, rooftop equipment, maintain roof warranty, rooftop utilities, load tested, holding strength, aluminum, stainless steel
Upon reading the Solar Power World article Metal Roofs are No Problem for Solar Installations, my reaction was, "Well, I suppose that is true—if (and only if) it is done 'the right way.'" There are so many materials, profiles, gauges, metallurgies and corrosion behaviors to consider; not to mention effective waterproofing methods, sealant chemistries, thermal cycling characteristics, weathering behaviors, strength of materials, structural engineering principals and relevant test methods. It is anything but a simple science!
Tags: Solar, pv modules, solar mounting, Brackets, solar attachment, exposed fastener, PV technology, PV, direct mount, PV array, photovoltaic, rail less, solar PV, solar technology, rooftop mounting, maintain roof warranty, load tested, holding strength