What have you noticed?
Write down what changed, where it appears and when you noticed it. Photographs taken safely from the ground can help describe the issue. Do not climb onto the roof to collect information.
What would you like to change?
Think about the result you want: addressing a concern, replacing an aging roof or exploring a different material. Bring examples of the colours or rooflines you like.
What timing matters?
Mention other work planned for the home and any timing constraints. Ask the contractor about assessment and availability before making assumptions about a start date.