How to Install a Half-Round Gutter

For best support, screw the brackets to the rafter tails; nailheads on the fascia give away their location. To determine which rafters get brackets, figure that they should be laid out evenly across the span no more than 32 inches apart. Drill pilot holes where the chalk line crosses the selected rafters, then screw the brackets to the fascia. On angled fascia, wedges (shown) make the brackets plumb.