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Mold Inspection Reports & Case Studies from our Tacoma Projects

Below are recent mold inspection projects we’ve completed in the Tacoma area. ┬áThese reports can help provide you with an idea of the issues we typically encounter in your region.

Project Type > Full House Mold Inspection in Tacoma

PROJECT SUMMARY

REASON FOR INSPECTION:

  • Client has been suffering from bloody noses and has seen mold growth on walls and windows. Areas of prior water damage have happened in the kitchen and bathroom ceilings.

CAUSE OF MOLD:

  • Condensation caused by high humidity and lack of ventilation. Water intrusion from failed caulking at the bath tub.

LABORATORY RESULTS

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ANALYSIS OF YOUR RESULTS:

  • Extreme Amplification: Mold spores were detected at levels many times greater than the threshold, indicating a site of high mold amplification and growth. Please refer to the attached report for more detailed information.

The most likely contributor of the elevated mold spores is:

  • Elevated humidity.
  • Recent water intrusion from failed shower caulking.

Recommendations:

  • Due to the elevated levels of mold spores, the operation of a commercial HEPA air scrubber is highly recommended. This will rapidly lower the indoor mold spore levels. Please contact Environix for pricing.

JOBSITE PHOTOS

Kitchen sink cabinet with elevated moisture, no leak found

Kitchen sink cabinet with elevated moisture, no leak found

Elevated humidity

Elevated humidity

Light condensation causing mold growth on windows

Light condensation causing mold growth on windows

Water damage at tub surround

Water damage at tub surround

Elevated moisture in building materials of shared wall with shower

Elevated moisture in building materials of shared wall with shower

Mold growth on carpet in closet opposite of bath tub

Mold growth on carpet in closet opposite of bath tub

Mold growth on pad and tack strip in closet opposite of bath

Mold growth on pad and tack strip in closet opposite of bath

Sealant failure at tub surround

Sealant failure at tub surround

RELATIVE HUMIDITY & TEMPERATURE READINGS:

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CO2 READINGS:

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VENTILATION:

OBSERVATIONS:

  • Relative humidity levels are slightly elevated. Generally, indoor RH levels should remain under 55% or under 50% in homes with poorly insulated exterior walls.
  • CO2 levels are elevated. While not a direct health problem, elevated CO2 levels are an indication of stale indoor air and poor ventilation. This can lead to a buildup of pollutants and humidity, which can cause mold growth. Following the ventilation recommendations listed below will lower the CO2 levels in the home.
  • Home suffers from insufficient ventilation. This leads to a buildup of indoor pollutants and increases the relative humidity, creating conditions conducive to mold growth and dust mites.

LOCATION: Living Room

OBSERVATIONS:

  • The windows have past evidence of light condensation and light mold problems.
  • The room is equipped with carpeting in dirty condition. Carpeting in room is old and a likely repository of mold spores. Carpeting can hold mold spores for long periods of time, long after the original source of the mold growth has been removed.
  • During the inspection, the carpet was pulled back to check the condition of the tack strip, carpet pad, and subfloor. No issues were discovered under the carpet.

Recommendations:

  • See ventilation section above for recommendations to eliminate condensation.
  • Consider having the carpets cleaned using a hot water extraction method. Ensure the carpets are able to dry very quickly. Environix can provide air movers or dehumidifiers to assist in fast carpet drying. Please contact your inspector for pricing.

LOCATION: Bedroom

OBSERVATIONS:

  • The room is equipped with carpeting in dirty condition. Carpeting in room is old and a likely repository of mold spores. Carpeting can hold mold spores for long periods of time, long after the original source of the mold growth has been removed.
  • Portable filters are in use in this room.
  • The windows have current evidence of light condensation and moderate mold problems. The windows are double paned and metal framed.
  • During the inspection, the carpet in the closet was pulled back to check the condition of the tack strip, carpet pad, and subfloor. Evidence of water damage is present in the carpet pad, tack strip, and carpeting.
  • Water damage noted in the drywall within the closet.
  • Elevated moisture was detected in the wall, floor, carpet, carpet pad, and tack strip in the closet.
  • Mold growth is present under the carpet in the closet. Heavy mold is present on the tack strip, padding, and carpet backing. The moisture source for this mold growth appears to be coming from the shower on the opposite side of the wall.

Recommendations:

  • Keep contents and furniture a minimum of 2-3 inches away from exterior walls to help prevent mold growth on these surfaces.
  • Moldy materials such as tack strip and carpet should be removed and disposed.

LOCATION: Bathroom

OBSERVATIONS:

  • Visible condensation-based mold growth noted on the bathroom wall and floor.

CEILING:

  • Evidence of a prior water leak was noted on the bathroom ceiling. This is the result of a leak from a unit above this one.
  • The client notes the ceiling has been open for approximately two months.

SHOWER:

  • Several areas of failed caulking in shower. This can lead to water infiltration and mold growth/wood rot in the wallboard and framing behind the shower surround.
  • Failed caulking is allowing water intrusion behind the shower surround and affecting the building materials in the bedroom closet.

General Recommendations:

  • When remodeling the bathroom, take appropriate steps to contain dust and potential mold spores. If significant mold growth is found, contact Environix.
  • Re-caulk the shower surround.

More Mold Inspection Reports from the Tacoma Area