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
Say Kids What Time Is It? Say Kids What Time Is It? "Say Kids What Time Is It?" is the debut single of British dance music duo Coldcut. It is renowned as one of the first tracks to be built entirely around music sampling. The single was originally released in early 1987 as a white label 12" single on Ahead of Our Time Records, with only 500 copies pressed for sale. However, as the song started to pick up some popularity, more copies were pressed, again on the 12" vinyl single. The track was built entirely around various samples. The song started with the sampled line