The foundry's undersill / utility trim helps provide a high level of finish with its versatility and shake and shingle color matching. When installing under a window, soffit or other projection it may be necessary to remove the nailing hem. Utility trim replaces the nailing hem, securing the panel to the wall. Installing utility trim: fasten trim into j-channel. The utility trim should have a 1/4" (6.4 mm) space from the edge of the j-channel. Fasten utility trim every 10-12" (254-305 mm) (fig 8). Triming siding: cut the siding to fit in wall projection trim. After the panel is cut, use a snap lock punch to create locking tabs every 10 to 12" (254-305 mm) (fig 9). Lock the panel into utility trim.
