V19

Whole-home humidification and dehumidification

Control humidity by season, envelope and ventilation without creating condensation, mould or stagnant water in equipment.

Checked: 2026-08-22

VERT / GREEN

Measure humidity with a hygrometer before adding equipment.

JAUNE / YELLOW

The target depends on climate, envelope and cold surfaces; over-humidifying in winter can condense.

ROUGE / RED

Recurring mould, water in ducts or contaminated humidifier: stop the source and correct it first.

Triage

Useful tools / data

  • Hygrometer
  • RH/temperature history
  • HVAC manuals

What the professional checks

  • Establish moisture load
  • Coordinate ventilation/HVAC
  • Plan drainage/maintenance

Sources and limits

Triage helps prepare the project; it does not replace permits, calculations, inspections or regulated work.