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Mold Testing Reports from Bellevue

Project Type > Mold Testing Inspection for a Home in Belleuve

PROJECT SUMMARY

REASON FOR INSPECTION:

  • Musty odors present in the home by the front door.

PROPERTY DESCRIPTION:

  • This single family residential property was built in 1965 and is 1,630 ft².

 LABORATORY RESULTS

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ANALYSIS OF YOUR RESULTS:

  • Minor Amplification: Mold spores were detected at or near the threshold.  This indicates a possible site of mold amplification.  Further testing and/or comparison with the results of a visual inspection are necessary to determine the likelihood of indoor amplification.

The most likely contributor of the elevated mold spores is:

  • Elevated humidity.
  • Recent water leak.

Recommendations:

  • Although your indoor mold spore count is elevated, the levels are not high enough to warrant professional remediation. By following the recommendations listed in the report and implementing regular cleaning, the mold spore levels should return to normal.

JOBSITE PHOTOS

Active plumbing leak.

Active plumbing leak.

Small amount of standing water on the vapor barrier.

Small amount of standing water on the vapor barrier.

RELATIVE HUMIDITY & TEMPERATURE READINGS:

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CO2 READINGS:

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VENTILATION:

Observations:

  • Relative humidity levels are 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 may have been inadequately heated in winter months. A minimum indoor temp of 65ºF must be maintained in the winter months to minimize excessive humidity and mold growth.
  • 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:  Crawlspace

Observations:

  • A plumbing leak is present in the crawlspace.
  • The plumbing leak is most likely from a failed gasket between the toilet and the closet flange. This is in the master bathroom.
  • Elevated moisture is present in the crawlspace.

Recommendations:

  • Hire a qualified plumbing contractor to repair the leak in the crawlspace immediately.

 LOCATION:  Master Bathroom

Observations:

SHOWER:

  • Grout and caulking is in good condition and shows no signs of recent water intrusion.

FLOORING:

  • Elevated moisture detected in flooring adjacent to toilet. There appears to be a plumbing leak around the toilet that has resulted in the water leaking into the crawlspace.

Recommendations:

  • Hire a qualified plumbing contractor to repair the leak under the toilet immediately.

LOCATION:  Throughout home

Observations:

  • Elevated moisture detected in the hardwood floors throughout the home, approximately 18% – 22% moisture content.
  • Odors are present in the home due to the elevated moisture and CO2 levels. The floors, walls, and contents are all holding excess moisture. Because there is elevated moisture in the crawlspace from the plumbing leak AND poor ventilation in the home, the flooring stays wet. Either of those two conditions are capable of creating conditions which will cause odors, and combined, they are increasing the accumulated odors. The odors will continue to worsen as long as the problems continue.

Recommendations:

  • It is imperative to repair the plumbing leak and improve the ventilation in the home for the odors to subside.