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.
In our booth at IRE Nashville this year, we showcased our usual innovative selection of clamps and brackets. But we also featured a new product: the new and improved S-5-N clamp is an innovative attachment solution that cures your nail strip profile seating issues.
The clamp features an insert to facilitate installation and fit. it also fits seam profiles having a base of rib dimension < .82".
Tags: pv modules, snow retention, solar mounting, metal roofing, exposed fastener, PV technology, PV, maintain roof warranty, non-penetrating, round point setscrews, weather proofing, rooftop utilities, non-corrosive, stainless steel
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 roofing, standing seam metal roof, cup point setscrews, corrosion, rooftop equipment, maintain roof warranty, round point setscrews, weather proofing, rooftop utilities, mechanical compression, non-corrosive, stainless steel