The deformation state of the perforated elements of Z- of similar profile is considered, that is used as tuning-ups of coverage in roofs with a slope to . Formulas over are brought for determination of the complete bending and distance between the points of fastening of links, that prevent to transferring to the horizontal plane. The charts of deformation of tuning-ups are presented for the angles of slope of construction, got as a result of calculation in a programmatic complex "Lira". It is found out, that in case of slanting bend direction of the complete bending in every transversal cut of the perforated profile is not perpendicular to the neutral line.
