Thanks noseall.
I will be replacing with corrugated cement sheets. The walls are single brick so I'll have to get access to the adjacent garages to build in purlins or joists.
I need to replace my corrugated asbestos garage roof which slopes from the front to the back. There are currently only 2 rusted angle iron supports in addition to the front support (door frame) and the back support (wall) so I intend to replace these with wood and add a few more to stop the new...