The corner formed by two converging slopes is called a creek. Place and fix two parallel slats parallel to the corner of the creek at a distance of 240 mm from the center of the corner. Fix the creek made of PVC panel tile or metal to the battens using self-tapping screws or nails.
Starting from the ridge line, place the roll in the corner, carefully placing it on the sheet. Secure the end points of the stream on the slats using self-tapping screws or nails.
Boards that coincide with the stream line must be shaped before placing so that they can be lifted after being fixed in order to obtain a straight stream line.