Flashing (weatherproofing) bark was occasionally used as a flashing material. Most flashing materials today are metal, plastic, rubber, or impregnated paper. Metal flashing materials include lead, aluminium, copper, stainless steel, zinc alloy, other architectural metals or a metal with a coating such as galvanized steel, lead-coated copper, anodized aluminum, terne-coated copper, galvalume (aluminum-zinc alloy coated sheet steel), and metals similar to stone-coated metal roofing. Metal flashing should be provided with expansion joints on long runs to prevent deformation of the metal sheets due to expansion and contraction, and should not stain or be stained by adjacent materials or react chemically with them.
Her Secret Is Patience Her Secret Is Patience Her Secret Is Patience is a public art sculpture commission designed by artist Janet Echelman for the city of Phoenix. Its creation was the result of collaboration between the artist and a team of award-winning engineers, architects, planners, and fabricators. It is located downtown in the Civic Space Park across from the Walter Cronkite School of Journalism at Arizona State University. The sculpture consists of painted, galvanized steel; polyester twine netting; and colored lights. The piece cost $2.5 million. The title of the piece is a quote from Ralph Waldo Emerson and during construction it was