When roof tiles are involved in a home inspection, there are tradeoffs and challenges to take into consideration. The tradeoffs roof tiles impose are between doing a careful and standards-based inspection and damaging the material. The challenge is to stay safe and yet still get the job done.
Roof tiles are constructed out of clay or concrete, though sometimes slate is grouped in the tile category. The demands for installing them are more stringent than those for installing roof shingles. The weight per square is so much higher that foundation and structure must be strong enough to support them. They use special fasteners and metal flashings. Manufacturers recommend not walking on them because it is difficult to know where to step and consequently the tiles are more susceptible to breakage.