Pneumatic cladding element for the long span saddle-shaped cable roofs was considered. The pneumatic cladding element is formed by the generally woven by the basket weave fabric from the Vectra (LCP) yarns, which is covered by the PoliTetraFluoroEthylene (PTFE) copolymer foil, and compliant contour, consisting from the several glued together layers of the mentioned covered fabric. The pneumatic cladding element is prestressed by the internal pressure of the air. The compliant contour is joined directly with the cables of saddle-shaped roof. The displacements of the cables have significant influence on it prestressing level. Influence of the displacements of 50x50 m cable net of saddle-shaped roof on the prestressing level was evaluated for 2.5x2.5 m cladding element. The dependence of cladding element height and it level of prestressing on the materials consumption was obtained on the base of numerical experiment. The numerical experiment was carried out when the height and level of prestressing of pneumatic cladding element changes within the limits from 0.2 to 0.6 m and from 0.2 to 0.6 from load bearing capacity of covered fabric, correspondingly.