The patented emergency roof is a level tarpaulin. This tarpaulin is diagonal several times and strengthened in longitudinal direction, so that it is possible for the first time to attach concentric a ring eyelet screw for a crane. Within the shortest time a construction is uncovered and covered. 15 x 15 m, light green, weight:ca. 200 Gr./m ². Rice strength approx. in 1000 N, incl. strengthening tapes approx. in 2100 N.