Any time you get to the top from the roof, operate your final row extended and drape the paper about the peak (best ridge) on to the opposite facet. When you get to the best on the opposite facet from the roof, run that paper up and above as well. https://topthenews.com/the-3-best-commercial-roofers-in-naperville-il-top-choices-for-quality-and-reliability/