Interlocking tiles

This is a large doctors surgery in south east London and the roof was renewed in mini Stonwold interlocking tiles on Tyvek felt ,and new velux windows .
Interlocking Tiles Interlocking Tiles
Picture 1

This picture shows detailed rear of the roof including tiling and Velux windows .
Picture 2

This picture shows the front lof the roof showing tiling and Velux windows.
Interlocking Tiles Interlocking Tiles
Picture 3

This picture shows the ridge line of the roof .
Picture 4

This picture shows over all roof covering to the doctors surgery.