Use the same angles before and after cleaning.
The strongest photo record is easy for a customer, AHJ, insurer, or fire marshal to follow. Capture the whole system first, then move component by component so each close-up has context and each after photo can be matched to a before photo.
- Take wide photos before close-ups so the location is obvious later.
- Match hood, plenum, duct, fan, and rooftop angles whenever possible.
- Photograph access limitations before leaving the site.
- Keep deficiency photos attached to written notes and recommended actions.