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Mold on Carpet

how to get mold out of carpet

Carpet Mold

Mold on carpet tack strip

Mold underneat carpet padding

Mold underneat carpet padding

Different types of mold can grow carpet

Mold from water intrusion

clean carpet tack

Example of clean carpet tack

Mold hidden by carpet

Project Type > Inspection for Mold in Carpet

Work #: 202027


  • Single floor, rambler.
  • Built 1976
  • 1,144 sq ft – built on crawlspace.


  • Adequate Ventilation Not Present
  • Recommended ventilation of residential homes should be between 0.35 and 0.7 air changes per hour (ACH).

wet carpet

  • Desired Ventilation Rate:  0.5 ACH (Air Changes per Hour)
  • Square Footage:            1144 sq/ft
  • Average Ceiling Height:   8 ft    X
  • Required Ventilation:      76.27 continuous cfm


  • Furnace system was found to be 80% efficiency and powered by natural gas.
  • Furnace system was not being used at the time of inspection due to cost.
  • Home was being heated by a wood stove present in the living room.


  • Recommend running the circulation fan in the furnace to allow for better air movement within the home.

LOCATION: Back Rented Bedroom


  • Extremely high CO² levels found!!!
  • Extremely high relative humidity levels found!!!
  • Visible interior mold growth was observed on base trim of exterior walls of bedroom.
  • Elevated moisture levels were noted in the base trim towards the exterior corner.
  • Visible swelling was noted on the base trim along exterior wall due to heavy condensation.
  • Carpeting exhibited elevated moisture levels, however normal moisture content levels were noted in subfloor alone.
  • Two people, a cat and a dog reside in the bedroom for much of the day with the doors and windows closed.
  • Candles were burning at time of inspection.
  • Minor amount of visible mold growth was noted on bottom of bed.
  • Bed was sitting directly on the floor.  This is likely trapping moisture and is likely leading to mold growth on the mattress.
  • Odors along edge of wall could possibly indicate exposure to dog or cat urine.
  •  Room was tidy at time of inspection but contained a significant amount of contents.
  • RH:68 % Temp: 69°F CO2: 4140 ppm CO: 0 ppm


  • Recommend opening windows and doors as much as possible to allow for fresh air to enter and stale air to escape the room / home.
  • Recommend running a dehumidifier inside the bedroom whenever windows and/or doors are being kept shut.
  • Recommend installing a hygrometer to measure and track relative humidity levels inside the home.  It is necessary to keep relative humidity levels below 55% to prevent condensation on exterior walls and windows.
  • Keeping pets inside bedrooms at night can also lead to elevated relative humidity and CO² levels.
  • Recommend keeping the bed off the floor to allow for air circulation to occur beneath the mattress.
  • Recommend running the HVAC system fan to allow for air circulation throughout the home.
  • Recommend removal of damaged base trim.
  • Recommend a thorough cleaning of the carpeting once tenants move out.
  • Any visible mold growth remaining on walls or in corners can be removed via a mild solution of soap and water and a stiff bristle brush and/or a damp rag.

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