An escape system for providing an escape route out of a building, the system comprising a ladder securable at a proximal end thereof to a building, and at least one anchor element securable at a fixed position relative to the building at a position distant from the proximal end of the ladder, the ladder being extendible between a collapsed storage configuration and an extended use configuration, wherein the ladder comprises: - a plurality of essentially rigid ladder segments, each of the ladder segments comprising at least one rung and being displaceable in relation to the remaining plurality of ladder segments; - a stopping mechanism configured to prevent ladder segments from displacement beyond their extension in the extended use configuration; and - at least one fixation element attached to or forming part of at least one of the ladder segments, the fixation element comprising a first spacer element, the first spacer element extending between the anchor element and the ladder in the extended use configuration, wherein the ladder is detached from the anchor element in the collapsed storage configuration, and at least one fixation element of the ladder is configured to attach to the anchor element when the ladder is in the extended use configuration, wherein the proximal end of the ladder is securable to at least a part of the roof construction of the building, and the anchor element is securable to the fagade of the building, and the system comprises a plurality of anchor elements, and wherein the ladder comprises a plurality of fixation elements, characterised in that the fixation elements comprise a fixation extension mechanism, the fixation extension mechanism being configured to automatically extend the fixation element towards the anchor element when the ladder is extended from the collapsed storage configuration to the extended use configuration, and in that the fixation extension mechanism comprises a resilient member allowing the fixation element to be resiliently extended towards the anchor element. - a plurality of essentially rigid ladder segments, each of the ladder segments comprising at least one rung and being displaceable in relation to the remaining plurality of ladder segments; - a stopping mechanism configured to prevent ladder segments from displacement beyond their extension in the extended use configuration; and - at least one fixation element attached to or forming part of at least one of the ladder segments, the fixation element comprising a first spacer element, the first spacer element extending between the anchor element and the ladder in the extended use configuration, wherein the ladder is detached from the anchor element in the collapsed storage configuration, and at least one fixation element of the ladder is configured to attach to the anchor element when the ladder is in the extended use configuration, wherein the proximal end of the ladder is securable to at least a part of the roof construction of the building, and the anchor element is securable to the fagade of the building, and the system comprises a plurality of anchor elements, and wherein the ladder comprises a plurality of fixation elements, characterised in that the fixation elements comprise a fixation extension mechanism, the fixation extension mechanism being configured to automatically extend the fixation element towards the anchor element when the ladder is extended from the collapsed storage configuration to the extended use configuration, and in that the fixation extension mechanism comprises a resilient member allowing the fixation element to be resiliently extended towards the anchor element.