Since the aluminium sheeting is glued and dry I had to mask around the edges before applying primer and the final red oxide paint. Applying the tape to a car that has painted sides without harming the finish is a slow and steady task. I rub the masking tape across my shirt to cut down on its' stickyness.
Then carefully apply the tape just below the roof edge trim. Leave about 3/4s of the tape not attached to the car so scrap cardboard can be used to extend the coverage for the complete car. This method helps keep stray paint from getting on the car sides.
Walmart grey primer followed by red oxide for a finish color. A couple of A&I washes and its' ready for some chaulk. The roofwalk supports are glued to the painted surface using ACC ( I use the frugal brand from the dollar store, three tubes for $1) Before glueing, crease the center of each stick so they can be pressed down to the contour of the roof. A second application of ACC glue helps hold them in place. I wait 24 hours and then using a sanding block about the length of the car, slooowly sand the tops of the supports to a flat surface. On most Maine two foot cars the extensions for the side walks are installed so the walks are not comforming to the angle of the roof.
I like this nonconforming position. Now on to the roof walks and ladders.