Cables under integrated roofing are barely visible, but their routing is crucial to how the system works. They need protection from damage, suitable environmental conditions and correct connections. Routes must be coordinated with water drainage, ventilation and service access. Roof aesthetics must not depend on hiding randomly routed cables. The most can be done at the design and installation stage. In a finished roof slope, access to the cables may require dismantling roofing elements. It is therefore worth establishing their route, connection points and building penetrations in advance. The design should account for the geometry of the active fields and the equipment requirements. Randomly shortening the route on site can conflict with roof detailing or hinder later servicing.

An inverter is matched to a specific installation, not merely to its approximate power rating. When replacing one, you need to check the parameters of the active strings, the wiring layout, the electronics and the planned functions. In an integrated roof, good documentation often makes it possible to carry out this assessment without disturbing the intact covering. The new device should suit the existing system and come with a clearly defined scope of commissioning and service. Two inverters of similar power may have different voltage ranges, currents and permitted configurations. The number of circuits and the way the active elements are connected both matter. If the installation uses optimisers or other electronics, their compatibility must also be confirmed.