Pro tip: Wait until you complete putting in the underlayment just before you install the drip edge to the gable finishes on the roof. Get started at the bottom aspect on the gable and overlap the sections of drip edge several inches as you work your way up the roof. https://nicehomeliving.com/5-roofing-companies-customers-love-in-downers-grove-il-top-choices-for-service-and-quality/