Ridges offer watertightness and insulation against rain or wind, in addition to preventing the entry of dust and dirt, they are used at the junction between two tiles for roofs that have two waterfalls. The finishes for Kingspan Isoeste's Isotiles are produced with thick steel# 0.50 and with an angle of 168º. With an external surface in pre-painted galvalume steel, it guarantees resistance and finishes to the effects of time. Its inner face is made of primed galvalume steel. The steel sheets are cut, profiled and then perforated, when necessary, through an automatic process which guarantees uniformity and an excellent finish.