Step 1 – Find the moisture

Homes and businesses can have many sources of moisture, among them bathrooms, kitchens, basements, and clothes dryers. Use a relative humidity (RH) meter to measure different areas of your home. A comfortable RH level is between 40 and 50%—although in winter, you may want it below 40% to avoid condensation on windows.

  • Check humidity levels to pinpoint trouble spots

  • Look for condensation, wood rot, mold, and peeling paint

  • Check for leaks in your basement, roof and attic, crawl spaces, closets, and windowsills

  • Examine sinks, tubs, and pipes for leaks

Step 2 – Reduce the moisture with these ten tips

  • When you see condensation or pooling water, dry it promptly

  • Use kitchen and bathroom fans to exhaust steam

  • Caulk and weather-strip to keep out humid air

  • Seal around tubs and sinks to prevent water from leaking into walls

  • Use an ENERGY STAR® certified dehumidifier in laundry rooms and basements

  • Seal off crawl spaces and cover dirt floors with polyvinyl sheeting

  • Install gutters and adjust downspouts to divert roof runoff

  • Install storm windows and storm doors in winter

  • Add insulation to reduce heat transfer (which causes condensation)

  • Improve grading around your foundation to divert groundwater

Step 3 – Improve ventilation

Ventilation removes stale, indoor air and replaces it with fresh, outdoor air. During warm months, you can open windows and doors—but the most effective ventilation comes from well-sized and properly installed fans. Besides removing moisture, clean bathroom fans and dryer vents are a must for occupant safety. Other fan options include kitchen range hoods, attic vents, and whole-house fans. For a complete assessment, hire a qualified contractor to look at your building’s ventilation, insulation, and air-sealing needs.

For more advice on reducing moisture throughout your home or business, contact our customer support team.