Roller curtain

A roller curtain, comprising:

• a plurality of interlocking curtain slats, each slat having an inner skin, an outer skin, and insulation between said inner and outer skins, each slat having hook-like elements which engage hook-like elements of a neighboring slat to form a joint connecting neighboring slats, said hook-like elements forming a joint space between the neighboring slats, and said inner skin having a curved, circular sealing surface whose center lies approximately at the pivot axis of said joint;
• an elongated sealing strip formed of an elastic material, said sealing strip connected to an edge of said inner skin of at least one neighboring slat, said sealing strip connected opposite said sealing surface of the neighboring slat, and said sealing strip having a curved portion terminating in a free edge;
• and
• wherein:
• said sealing strip extends into said joint space;
• said free edge of said sealing strip points toward said outer skin and is positioned inside said joint space when the neighboring slats are in a common plane;
• said sealing strip rests and seals against said sealing surface of said inner skin of the neighboring slat when the neighboring slats are in a common plane;
• said free edge of said sealing strip points toward said outer skin and is positioned inside said joint space when the neighboring slats are not in a common plane;
• and
• said sealing strip rests and seals against said sealing surface of said inner skin of the neighboring slat when the neighboring slats are not in a common plane.