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Mold Inspections for the Lynnwood Area

Our goal is to provide educational resources for our clients by publishing indoor environmental data for each of the cities we serve.  Below you’ll find links to recent mold, lead, asbestos and indoor air quality projects we’ve completed in the Lynnwood area.

Project Type > House Mold Inspection for Recurring Mold in Lynnwood

PROJECT SUMMARY

REASON FOR INSPECTION:

  • Mold growth on the walls in the master bedroom and in the bathroom reappears even after cleaning.

PROPERTY DESCRIPTION:

  • This single family residential property was built in 1925 and is 1,240 ft².

CAUSE OF MOLD:

  • The cause of the mold growth is directly related to the elevated humidity in the home. The elevated humidity allows for condensation to form on the cooler surfaces creating an areas conducive for mold growth.

LABORATORY RESULTS

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ANALYSIS OF YOUR RESULTS:

  • No Amplification:  No mold spores were measured at levels equal to or above the threshold, and do not indicate a site of probable mold amplification and growth.  Please refer to the attached report for more detailed information.

JOBSITE PHOTOS

Mold growth on the bedroom walls.

Mold growth on the bedroom walls.

Mold growth on the window frames throughout the home.

Mold growth on the window frames throughout the home.

Mold growth on the bedroom walls.

Mold growth on the bedroom walls.

RELATIVE HUMIDITY & TEMPERATURE READINGS:

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CO2 READINGS:

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VENTILATION:

OBSERVATIONS:

  • Relative humidity levels are highly 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: Master Bathroom

OBSERVATIONS:

  • The bathroom window has present evidence of heavy condensation and heavy mold problems.

CEILING:

  • Heavy condensation-based mold growth noted on bathroom ceiling and walls. This occurs when the warm, moist air generated by shower usage interacts with the cool surface of the ceiling and walls. Without adequate ventilation, this causes condensation and subsequent mold growth.

SHOWER:

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

Recommendations:

  • See ventilation section above for recommendations to eliminate condensation.

LOCATION: Bathroom

OBSERVATIONS:

  • The bathroom window has present evidence of light condensation and light mold problems.

CEILING:

  • Light mold growth noted on bathroom ceiling and walls. This occurs when the warm, moist air generated by shower usage interacts with the cool surface of the ceiling and walls. Without adequate ventilation, this causes condensation and subsequent mold growth.

SHOWER:

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

LOCATION: Bedroom

OBSERVATIONS:

  • Moderate condensation-based mold was noted on exterior walls.
  • The bedroom is equipped with double paned vinyl framed windows with present evidence of heavy condensation and heavy mold problems.
  • Infrared thermal imaging revealed limited thermal protection in the areas where mold growth is occurring. This means this area of the wall has low insulation.

Recommendations:

  • Keep contents and furniture a minimum of 2-3 inches away from exterior walls to help prevent mold growth on these surfaces.