Exterior water path
From safe ground level, note roof-edge drainage, grading, visible cladding damage and water concentration.
Interior moisture
Record new staining, condensation or musty areas rather than simply covering them.
Mechanical status
Note unusual noise, repeated faults or comfort changes and check user-serviceable items identified by the manufacturer.
Safety systems
Use current manufacturer and local authority guidance for alarms and other life-safety devices rather than a generic web schedule.
Safety boundary. General planning information only. Do not open, dismantle or work on hazardous electrical, gas, structural, fire-protection or contaminated-water systems unless you are appropriately qualified and authorized.