To install aluminum fascias, begin by removing any existing gutters that obstruct the old fascias. Check the existing wooden fascias for signs of rot by using the tip of a screwdriver to make indentations on the board. Remove any old boards before installing the new fascias and replace them with new pine boards that are the same size as the old fascias.
Install each new fascia starting in the middle and working your way out to either side. Space nails 16 inches apart and 1 inch from the top and bottom of the aluminum fascia. Be careful when nailing the fascia into place because hammer dents and damaged nails are highly noticeable. When you reach a joint, make sure to overlap the fascias by 1 to 2 inches and nail into the overlap to secure the edges.
When installing fascias on angled eaves, always start from the bottom and work your way to the peak. This system allows you to overlap the aluminum fascias so they shed water easily. Always install gable fascias from the bottom up, starting with the bottom finished edge first.
To bend a piece of aluminum fascia around a corner, use tin snips to cut the bottom and top lip and remove enough of the lip so the edges meet at a 45-degree angle when you bend the fascia 90 degrees. To ensure that the fascia bends evenly, hold a combination square along the desired crease and then lightly pull up on the fascia until it bends.