I am drawing a commercial building and I have a problem that I don't remember running into before. The roof is flat (1/12) covered with TPO which is white. I also have two small porches that have shingles. When I add the shingles the flat room now has shingles. So I color the roof white and the shingles on the porches turn white. Any ideas? I need to keep the roof white and the shingles colored.
Jack