[Robert Bergeron]

Thanks very much Dennis, Bruce and Jordan. Very interesting look into the past there Dennis and Bruce. Bruce / Jordan : I ripped out the old panelling inside the box. I then primed the bare aluminium before making new plywood panels. I never saw any holes , bolts or screws coming out from the roof above. Maybe there are inserts in the steel structure supporting the aluminium sheets . If so , i could not of seen them from inside . Both Bruce and Jordan have excellent ideas . I will clean out a few of the holes on the roof and try to have a look at the bottom. Now that i think of it as i write this , it might well be metal screws driven through the aluminium sheet and the the steel frame forming the structure. More to follow and again thanks for all the good ideas fellows.