When planning a roof replacement project in Portland, several factors can impact the timeline. Project scheduling for the roof replacement should consider potential weather delays, crew size impacting work efficiency, permit processing timing, material delivery schedules, and inspection scheduling. The tear-off duration, installation of the new roof (which can often be completed in one day for smaller projects), and the cleanup process are crucial phases to account for. Proper planning and coordination can help ensure a smooth and efficient roof replacement project.