How do I install Wave panels with EASY ROOF EVOLUTION L1 Portrait mounting on a fully-framed roof?

For an installation on a fully-framed roof, the Wave panels cannot be installed directly with an EASY ROOF mounting, as there is no space to pass the hydraulic lines. We therefore recommend adding vertical chevrons (from top to bottom) on the roofing, separating the chevrons at places where the pipes will pass, then laying down horizontal rafters (boards of 20 cm wide by 2.7 cm thick wood) on which the EASY ROOF kit can then be installed. This is pictured below: