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Seattle Mold Mitigation Projects

Below are recent mold mitigation projects we’ve completed in Seattle.


 

Project Type > Mold Mitigation Report for a Home in Seattle

PROJECT SUMMARY

REASON FOR INSPECTION:

  • The owner noticed mold growth in the downstairs bathroom recently and would like to know the cause and the best course of remediation.

PROPERTY DESCRIPTION:

  • This residential property was built in 1984 and is 1381 ft².

CAUSE OF MOLD:

  • A leak from the upstairs toilet appears to have saturated a portion of the ceiling in the downstairs bathroom allowing mold to grow on the drywall. It is unlikely that the saturation is due to a roof leak given that the location of the saturation is set back from the roof and also that the roof showed signs of leaks or issues. The toilet either has a failed seal or a more major leak.
  • This leak has damaged the drywall in this section and the drywall should be removed. Because the drywall has likely been saturated with category 3 water and has mold growing on the back side, care should be taken when removing this drywall.

JOBSITE PHOTOS

Area of Concern in Downstairs Bathroom

Area of Concern in Downstairs Bathroom

Ceiling Drywall shows Saturation

Ceiling Drywall shows Saturation

Ceiling saturation extends about two feet from the corner.

Ceiling saturation extends about two feet from the corner.

Floor shows saturation and buckling around rear of toilet in upstairs bathroom above downstairs bathroom

Floor shows saturation and buckling around rear of toilet in upstairs bathroom above downstairs bathroom

Wall behind toilet does not show saturation.

Wall behind toilet does not show saturation.

LOCATION: Downstairs Bathroom

Observations:

  • Heavy mold growth noted on bathroom ceiling.
  • Elevated moisture and saturation of the drywall noted in the moldy ceiling area extending out to 2-3’.
  • The wall showed saturation only in the top 1-2” near the mold growth.
  • This area is directly below the upstairs toilet.

General 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.
  • When the ceiling cavity is opened to remove the damaged drywall, the underside of the subfloor of the bathroom above should be inspected to determine if the subfloor has been structurally damaged by the water leak.
  • Please see attached pdf file for an estimate of charges.

LOCATION: Upstairs Bathroom

Observations:

  • Elevated moisture detected in flooring adjacent to toilet. Often this is due to a failure of the toilet seal.
  • Buckled laminate flooring observed around toilet area. This is not a structural concern, but may be replaced for cosmetic reasons.
  • Subfloor may be damaged under the laminate flooring. This will be accessible for inspection for damages when the downstairs bathroom ceiling is opened up or when the toilet is removed to repair the leak.

General Recommendations:

  • Replace the toilet seal.
  • When the toilet is detached it may be clear that the leak is more major than just the seal and may require a plumber.