A hologram contrasts the old heat-absorbing asphalt roof and the new reflective one of  galvanized this light metal
THIS OLD HOUSE: THE AUSTIN PROJECT | A hologram contrasts the old 
heat-absorbing asphalt roof and the new reflective one of galvanized <http://www
.j-archive.com/media/2007-04-27_DJ_29.jpg> this light metal | aluminum.