Just a little north and west of the DFW area is Wichita Falls. Hot. Wichita. Falls. Before and After
picture
really show the coverage afforded by sheet radiant barrier.

12' peak, hip style roof. Very little truss work. Great coverage!

Notice how the radiant barrier wraps around the roof valley line in the
upper right quadrant of the picture.

Maximum coverage. Maximum radiant heat blockage...97%!