Pitch awning which comprises: - a support structure; - at least one cloth being extended between two side edges from a rear edge (3") to a front edge (3"'): - said cloth defining a plurality of pitches with extension direction substantially parallel to each other, - said cloth being supported by said support structure above an area to be covered, and - said cloth being movable along a slide direction substantially orthogonal to the extension direction of said pitches, between at least one collected position, in which said pitches are arranged close to each other, and at least one extended position, in which said pitches are extended above said area to be covered; said pitches being delimited by at least one bottom fold and by at least two top folds between which two sides are defined, such sides delimiting at least one drain channel oriented transversely to the slide direction of said cloth and provided with at least one slope towards at least one side edge of said cloth; and - lower tie rods (10"), fixed at their ends to said support structure and being extended substantially along said slide direction of the cloth at its side edges; the side edges of said cloth being slidably engaged characterized in that it comprises at least two pairs of tie rods, each pair comprising an upper tie rod and one of said lower tie rods (10"), fixed at their ends to said support structure, being extended spaced from each other and one above the other substantially along said slide direction of the cloth at its side edges; the side edges of said cloth further being slidably engaged by means of the side ends of said top folds with said upper tie rods by means of the side ends of said bottom folds with said lower tie rods (10"); the tie rods of said pairs of tie rods being spaced from each other to a greater extent when said cloth is in collected position than when said cloth is in extended position, the distance difference being an approach distance causing an elastic tensioning of the pitches of said cloth in said extended position. - a support structure; - at least one cloth being extended between two side edges from a rear edge (3") to a front edge (3"'): - said cloth defining a plurality of pitches with extension direction substantially parallel to each other, - said cloth being supported by said support structure above an area to be covered, and - said cloth being movable along a slide direction substantially orthogonal to the extension direction of said pitches, between at least one collected position, in which said pitches are arranged close to each other, and at least one extended position, in which said pitches are extended above said area to be covered; said pitches being delimited by at least one bottom fold and by at least two top folds between which two sides are defined, such sides delimiting at least one drain channel oriented transversely to the slide direction of said cloth and provided with at least one slope towards at least one side edge of said cloth; and - lower tie rods (10"), fixed at their ends to said support structure and being extended substantially along said slide direction of the cloth at its side edges; the side edges of said cloth being slidably engaged - said cloth defining a plurality of pitches with extension direction substantially parallel to each other, - said cloth being supported by said support structure above an area to be covered, and - said cloth being movable along a slide direction substantially orthogonal to the extension direction of said pitches, between at least one collected position, in which said pitches are arranged close to each other, and at least one extended position, in which said pitches are extended above said area to be covered; said pitches being delimited by at least one bottom fold and by at least two top folds between which two sides are defined, such sides delimiting at least one drain channel oriented transversely to the slide direction of said cloth and provided with at least one slope towards at least one side edge of said cloth; and - lower tie rods (10"), fixed at their ends to said support structure and being extended substantially along said slide direction of the cloth at its side edges; the side edges of said cloth being slidably engaged