Straight roof construction for Subbuteo 61217 terrace

Straight Roof construction for Subbuteo 61217 terrace.
No original upright needed, this construction holds the terrace in place.

Examples of the roof textures are also shown here 

Disclaimer:
This construction is only compatible with the original Subbuteo 61217 terraces.
Subbuteo 61217 terraces are not included.