Metal roof provides increased wind resistance when compared to other roofing materials. This is because metal roofing systems use interlocking panels. The disadvantages of metal roofs include the noise created from rain hitting the roof, and, in snowy areas, the tendency of snow to easily fall off the roof and onto pedestrians or property. Originally, metal roofs were made of corrugated galvanized steel: a wrought iron–steel sheet was coated with zinc and then roll-formed into corrugated sheets. Another approach is to blend zinc, aluminum, and silicon-coated steel. These products are sold under various trade names like "Zincalume" or "Galvalume". The surface may
What Time Is It? (song) What Time Is It? (song) "What Time Is It?" is the opening musical number and first single from the Disney Channel Original Movie "High School Musical 2". It is featured on the "High School Musical 2" soundtrack, and is the first song off the "High School Musical 2" soundtrack. The song had its world premiere on Radio Disney on May 25, 2007 as part of its Planet Premiere featurette. On June 8, Disney premiered the video as a sneak peek in multiple nations at close to the same time. The single was released on July 16, 2007 worldwide, and on