Patent ID: 7527554

Claim:
A rollable roof ridge ventilation element for slanted roofs, comprising: a ribbon-type, air-permeable carrier material, including edge regions; and edge strips of an elastically deformable film connected, respectively, to the edge regions of the carrier material, each edge strip including: an upward-pointing fold defined by two walls and extending in a longitudinal direction of the ventilation element presenting a wind-repelling lip, wherein each edge strip is comprised of one of (a) a soft metal strip including at least one of aluminum, copper, or lead, or (b) a plastic film including a metallization on an exposed surface, and wherein each edge strip includes transverse undulations, and wherein the wind-repelling lip of each edge strip includes surface undulations in each of the two walls of the fold that extend transverse to the longitudinal direction and correspond to the transverse undulations of the edge strip, whereby the transverse undulations of the wind-repelling lip provide a sufficient material reserve to adapt to differences in length when unrolling the ventilation element.