Choose repeatable viewpoints
Take the whole front and rear slopes, both gables, ridge, valleys where visible and chimney abutments. Use the same locations on future inspection days when practical.
Add close-ups when there is a reason
If an area is being monitored or repaired, take a wider context image and a closer detail. The wider image shows where the defect is; the close-up shows change.
Date and label the set
Keep the actual date, weather if relevant and reason for the photographs: annual condition record, pre-repair, post-repair, insurance request or pre-sale pack.
Do not make unsafe access part of the routine
Good ground-level photographs are better than taking risks on ladders or roofs. Detailed access and condition assessment should be left to competent professionals with suitable equipment.
Link images to events
A photo set should be attached to an inspection, repair or dated observation. That turns a camera roll into a timeline.
Source guidance can change. Check the current version and obtain property-specific advice where needed.