Browse Forums Renovation + Home Improvement Your house roof does not show rusting other than some surface rust on the flashings. In my opinion you dont need to replace or paint the roof other than treat surface rust… 1 10226 What you are looking at is fibrous plaster, true gypsum, it is cast on horizontal beds with fibers included to give strength. I has no Asbestos in it. Houses before 1985… 2 7141 ok thanks - yes was wondering if that should have been listed as Option Three! 2 7755 |