This is a completed valley detail. The following illustrations and steps will describe how to form this detail on a brake.
Place the roofing material on the brake with the colored side facing up. Bend the apron up 145° and release. Then open the clamp and slide the bend under and squeeze.
Be sure to leave a gap for the cleat.
This process should be repeated on the other side of the panel. Flip it around but leave the colored side up. Bend and squeeze this side as well.
The panel should now look like the image to the right.
Now the final bend can be made. Slide the panel in half way for the final bend. The andle of the bend is determined by the desired valley angle.