Abstract: A roll-up blind with high mechanical strength, having thermal and acoustic insulation features, comprising a plurality of slats that can be mutually hinged, each slat being constituted by an outer profiled element made of aluminum and by an inner profiled element made of plastics which is coupled to the outer profiled element; the roll-up blind further comprises, on the inner face of the outer profiled element, a protrusion that is monolithic with the outer profiled element and forms an engagement seat for screws for the connection of end plates for the slats.