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Mold Inspection Reports from Redmond

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

Project Type > Mold Inspection for a Bathroom in a Home in Redmond

PROJECT SUMMARY

REASON FOR INSPECTION:

  • The upstairs bathroom had a leak in the past that has been fixed. It caused mold growth on the ceiling of the room below, however that was never remediated. The owners would like to know what needs to be done to take care of the mold growth.

PROPERTY DESCRIPTION:

  • This single family residential property was built in 1998 and is 4250 ft².

CAUSE OF MOLD:

  • The mold growth in the downstairs room is from the previous leak in the upstairs bathroom.

JOBSITE PHOTOS

Mold Growth on Ceiling

Mold Growth on Ceiling

Drywall Did Not Show Elevated Moisture

Drywall Did Not Show Elevated Moisture

Carpet Did Not Show Elevated Moisture

Carpet Did Not Show Elevated Moisture

Trim and Wall Damaged Near Shower

Trim and Wall Damaged Near Shower

Mold Growth around Shower

Mold Growth around Shower

LOCATION:  Study

Observations:

  • Moderate to heavy mold growth noted on ceiling. The source of moisture for this mold growth was a water leak in the bathroom above, which has since been repaired.
  • Evidence of water damage is present in the ceiling drywall.

Recommendations:

  • Professional mold remediation is necessary to properly address the existing mold growth and to prevent cross contamination. During remediation, HEPA filtration, negative air pressurization and proper personal protective equipment must be utilized. Please see attached pricing.

LOCATION:  Upstairs Bathroom

Observations:

  • Evidence of water damage was noted in the trim near the shower.
  • Mold may be found encapsulated within the wall behind the shower. It is not causing an indoor air quality concern at this time, however if a remodel of this area is planned, it may be necessary to hire a professional mold remediation company.
  • Mold may be present on the subfloor below the carpet in this bathroom. If the carpet is removed, inspect the subfloor for mold and either treat and encapsulate the mold or remove any damaged subfloor area.

CEILING:

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

Project Type > Mold Inspection for a Home in Redmond

PROJECT SUMMARY

REASON FOR INSPECTION:

  • Mold growth present on the ceiling throughout the entire home.

PROPERTY DESCRIPTION:

  • This single family rental residence was built in 1959 and is 1,300 ft².

CAUSE OF MOLD:

  • The cause of the mold growth is condensation which is caused by a buildup of humidity in the home due to lack of proper ventilation.

LABORATORY RESULTS

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ANALYSIS OF YOUR RESULTS:

  • Moderate Amplification: Mold spores were detected at levels above the threshold, indicating a site of probable 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.

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

Mold growth on the ceiling.

Mold growth on the ceiling.

Mold growth on the ceiling.

Mold growth on the ceiling.

Mold growth on ceiling.

Mold growth on ceiling.

RELATIVE HUMIDITY & TEMPERATURE READINGS:

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CO2 READINGS:

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LOCATION:  Master Bathroom

Observations:

  • The window has current evidence of moderate condensation and moderate mold problems.

CEILING & WALLS:

  • 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.

Recommendations:

  • See ventilation section above for recommendations to eliminate condensation.
  • Client indicated that the popcorn ceiling will be removed, therefore remediation will not be necessary. If the ventilation is not improved in the home, then mold growth will likely occur on the new ceiling.

LOCATION:  Hall Bathroom

Observations:

SHOWER:

  • Several small areas of failed grout or caulking in shower. This can lead to water infiltration and mold growth/wood rot in the wallboard and framing behind the shower surround.  However, because the potential mold growth would occur within the wall cavity, the issue has no effect on the indoor air quality.

Recommendations:

  • Clean and seal the shower grout, and re-caulk the shower surround.

LOCATION:  Master Bedroom

Observations:

  • Heavy condensation-based mold growth was noted on the ceiling.
  • The window has current evidence of moderate condensation and moderate mold problems.

Recommendations:

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

LOCATION:  Bedrooms 2, 3, 4

Observations:

  • Bedroom two has heavy condensation-based mold growth on the ceiling.
  • Bedroom three has moderate condensation-based mold growth on the ceiling and the wall.
  • Bedroom four has light condensation-based mold growth on the ceiling.
  • The bedroom windows have current evidence of moderate condensation and moderate mold problems.

LOCATION:  Living Room

Observations:

  • Very light condensation-based mold growth observed on the ceiling.
  • The window has current evidence of light condensation and light mold problems.

LOCATION:  Dining Room

Observations:

  • Moderate condensation-based mold growth observed on the ceiling.
  • The window has current evidence of light condensation and light mold problems.

Project Type > Mold Inspection for an Office in a Redmond Home

PROJECT SUMMARY

REASON FOR INSPECTION:

  • They have noticed a musty, earthy smell in their office. They would like to know the source of the odor, if there is a mold issue and what remediation may be necessary.

PROPERTY DESCRIPTION:

  • This single family residential property was built in 2002 and is 2,222 ft².

Findings Summary:

  • The odor is most likely the result of the saturation of the pressed fiber siding on the outside of the house. This siding is swollen and in places appears rotten from a crack that has developed below the window and was improperly repaired with expandable foam insulation. This siding needs removal and replacement. Contact Environix if mold is found in the process of siding replacement.
  • No visible mold or elevated moisture was found inside the room and all mold spore levels came back low.  It does not appear that the leak in the siding has affected materials in the room. It is possible that there is mold in the wall cavity, but this is contained in the wall and has not affected indoor air quality.

LABORATORY RESULTS

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ANALYSIS OF YOUR RESULTS:

  • No Amplification: The only mold type found came in below what are considered low levels this time of year.

JOBSITE PHOTOS

No Moisture Found around Window

No Moisture Found around Window

No Elevated Moisture Found in Flooring

No Elevated Moisture Found in Flooring

Window Outside Office

Window Outside Office

Damage to Left of Window

Damage to Left of Window

Cracks Filled in With Expandable Foam Insulation

Cracks Filled in With Expandable Foam Insulation

Siding Shows Swelling and Saturation

Siding Shows Swelling and Saturation

Framing Under Window Rotten

Framing Under Window Rotten

HVAC:

Observations:

  • The home is equipped with forced air gas heat.
  • Filtration consists of a 1” pleated filter which appeared to be a poorly fitting filter box at time of inspection. The filter allows significant bypass to occur, nullifying the filtration effect of the media.
  • No fresh air intake found on furnace system. Fresh air intakes can be very effective at lowering the interior RH in the home.

RELATIVE HUMIDITY & TEMPERATURE READINGS:

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CO2 READINGS:

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LOCATION:  Office

Observations:

  • Client reports an ongoing musty or earthy odor in this room.
  • Client removed the carpet in the past and found wet subfloor underneath. The room has new bamboo flooring installed now.
  • On the exterior of the house, there is evidence of a crack near the window that has been repaired with expanding foam.
  • The window sill and the siding below the window sill on the exterior of the house show evidence of rot. The source of this rot appears to be a water intrusion from the crack.
  • The siding in this area is swollen and water damaged. This is the likely source of the odor.
  • Client notes they also previously had problems with their rain gutters in this area, but they have added covers and no longer have these problems.

Recommendations:

  • Have a qualified general contractor remove the damaged siding and inspect the materials underneath. Remove and replace all water damaged materials. If significant mold growth is found, contact Environix for treatment.
  • Replace the damaged area with new siding.