Mold Inspection Reports from Shoreline

Project Type > Water Damage Inspection in Shoreline

PROJECT SUMMARY

REASON FOR INSPECTION:

• The client had a water intrusion which has affected areas in the living room and foyer in the lower unit of this duplex.

PROPERTY DESCRIPTION:

• This duplex residential property was built in 1948 and is 2020 ft².

CAUSE OF MOLD:

• The cause of the mold growth is a water intrusion through a foundation cold joint.

LABORATORY RESULTS

The most likely contributor of the elevated mold spores is:

• Recent water intrusion.

Recommendations:

• Due to the extremely high level of mold spores in your home, immediate action is necessary.
  • 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

Partial removal of the damaged materials.

Partial removal of the damaged materials.

Location of cold joint.

RELATIVE HUMIDITY & CO2 READINGS:

LOCATION: Living Room

OBSERVATIONS:

• The client reports a water intrusion has occurred. The water intrusion was likely the result of a failed cold joint between the concrete slab and the foundation wall.
  • When the foundation is constructed a cold joint is present between the different segments of concrete. When the water table outside of the foundation wall becomes elevated or above the level of the concrete floor the water may make its way into the home.
• The client reports the installed sump pumps have failed.
  • The sump pump is placed outside of the foundation to prevent the water table from reaching the level of the floor, if it does go above this level then water may enter into the home.
• The carpeting has been removed.
• Some portions of the drywall have been removed.
• The exposed framing moisture content readings were below 17% (dry) via hammer probe testing.
•  The carpet was installed over ¾” OSB, over tar paper.
• The remaining ¾” OSB subflooring moisture content readings were above 40% (elevated).
• The vinyl flooring in the foyer moisture content readings were above 80% (wet).

Recommendations:

• See ventilation section above for recommendations to eliminate condensation.
• Remove and dispose of all damaged building materials.
• Seal the concrete with a 2 part epoxy prior to rebuilding the interior of the home.
  • This is the best way to prevent water from coming through the floor in the home. It would be prudent that while the flooring is removed that the concrete floor be coated with an epoxy sealant which will prevent movement of moisture through the concrete floor.
• Contact a qualified drainage contractor to investigate the drainage issue and resolve it.

RAW LABORATORY RESULTS

ANALYSIS OF YOUR RESULTS:

• Extreme amplification.

Recommendations:

• An air scrubber should be placed in the home to remove the mold spores which have become airborne. It is important that the living room be separated via proper containment from the rest of the home in order to prevent further contamination.
• During the removal of the damaged materials negative air pressure should be established within the room in odor to prevent further contamination in the rest of the home.