Low shelter with articulated roof elements for use as a swimming pool roof

A low shelter swimming pool roof system, comprising:

• roof elements (I and I′) juxtaposed along a length of a swimming pool;
• a translucent material cover (100 and 100′) and a resistant rigid frame formed of at least two arcs (210 and 210′) arranged in planes transverse to the pool and separated by longitudinal cross-ties (220 and 220′) with two end cross-ties delimiting two longitudinal parallel sides (220a, 220a′ and 220b, 220b′) to the roof elements (I and I′) and which rest on longitudinal edges of the swimming pool, thereby defining a support surface (S),
• the roof elements (I and I′) having at least one longitudinal side (220b) articulated (arrow A) relative to the support surface (S) of the edge of the swimming pool, the articulation allowing the roof element to pivot from a closed position to a partly open position;
• wherein the swimming pool roof system is formed, along at least one portion (P′) of its length, of juxtaposed roof elements (I′) whose distance, defined by an external cord of the two longitudinal sides (220a′ and 220b′) resting on support edge (S) of the swimming pool and linking the two arcs (210 and 210′), is less than the distance defined by an internal cord of the two longitudinal sides (220a and 220b) resting on the support edge (S) of the swimming pool and connecting the two arcs (210 and 210′) of the juxtaposed elements (I) of the other portion (P) of the swimming pool roof system to enable nesting of a first portion (P′) of the roof elements (I′) in a second portion (P) of the roof elements (I) and to partially open up the swimming pool along a length depending on a displacement of a mobile portion (P′) of roof elements (I′);
• and
• wherein the roof element (I′) of the mobile portion (P′) comprises mutual linking structure that is both dissociable to allows free articulation (arrow A) of each roof element (I′) relative to the support edge (S) of the swimming pool, and non-dissociable to allow longitudinal movement of a mobile portion (P′) of roof elements (I′) along the support edge (S) such that the juxtaposed roof elements (I′) are stowed one after the other.