MSR 100 Basic Headwall is used to flash where the roof plane meets a wall perpendicular to the panels. Installed by fastening the top under the siding with 1” pancake screws with sealant behind to flash the siding. It is also fastened to the panel with 1/4 wood binder screws.

This trim is installed after the panels are installed.

If you are not wanting to see any to fasteners in your ridge cap, you can upgrade to the MSR 100 Headwall with Cleat that allows you to fasten the trim down under the panels keeping the fasteners out of sight.