5.3 – Solar panel support systems – 3. Coupling systems on standing seam roof cladding 332 5.3. 3. COUPLING SYSTEMS ON STANDING SEAM ROOF CLADDING The coupling of the solar panels to the standing seam zintek® roof cladding takes place by means of clips that allow not to use through fasteners, to guarantee functionality and continuity of the cladding and allow its thermal expansion. Any metal frame supporting the panels is also anchored to the clips by means of a sliding coupling system that allows the profile the necessary movement. The values allowed by the standing seam cladding coupling systemmust be higher than the loads transmitted by the solar panels and its support structure. Technical characteristics of the coupling clamp: • the clamp pressure is exerted only on the sides of the standing seam edge; • presence of a retaining hook below the standing seam edge, against extraction even in the case of slight loosening of the nut over time and vibrations due to inclement weather; • open angle for the transversal expansion of the cladding (11° + 15°, as indicated in the example drawing); • can be used both in the area with fixed clips and in the area with sliding clips; • is installed with the counter hooks positioned on the side of the standing seam welt; • the nuts are tightened with a torque wrench, according to the values shown on the product data sheet. 11° 15° Example of a clamping system for fixing photovoltaic panels on seaming, which allows thermal expansion transversally and longitudinally to the roof cladding. EXCERPT
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