Solar roof tiles are undeniably the most attractive way of incorporating solar PV into a roof, and are a great product to use on high-end building projects. Solar roof tiles are simple to install and can be installed by a conventional roofer. However, because they are a more bespoke product, the cost is currently 2-3 times that of a regular solar module system, and if price is a concern you may wish to look at an in-roof system instead. There is currently a lot of attention being generated by the Tesla Solar Roof tile (not yet available, but coming soon) but these products have been around for a long time. Indeed, Joju’s very first installation in 2006 was with solar roof tiles.
See a case study of solar tiles here