Better insulating value than either metal or masonry. Requires periodic painting or stain to preserve appearance. C. Masonry Very low maintenance. High initial cost. Difficult to insulate.
White color has slightly better reflective quality than natural metal.
Requires less roof framing than shingles and is lower in cost. B. Solid deck with shingles Better insulating value than metal roof. Insulation Insulation is an increasingly important part of modern farm building construction. There are many choices of insulating material available. To provide a basis of comparison between buildings, you should specify insulation based on its R value.