• It is a trapezoidal profile with box crest and valleys suitable for roofing and wall cladding. • Especially targeted at domestic and light industrial/ commercial applications where the goal is economy and aesthetics. • Has 4 troughs and 5 ribs. The valley (trough) is wider than the crest (rib) and stiffened using two 25mm wide strips. • Can be factory cranked into curves of minimum 400mm radius to enhance their use and aesthetic properties.