Mold Remediation Services > Sample Mold Remediation Scope of Work
Sample Mold Remediation Scope of Work
Introduction and Scope of Work
Photos of the pre-remediation area
Photos of the containment area
Photos of the post remediation area
We were contacted by a client and requested an expedited site evaluation for suspect mold at building. API representative Robert Metzgar, a council certified microbial remediation supervisor, performed a site evaluation on January 18th.
Results of the site evaluation confirmed visible mold on the northern exterior wall of the first floor. The mold had been discovered during a remodeling project when a contractor removed wallpaper from the existing drywall. The affected wall was approximately 38’x9’.
On Saturday January 19th and Sunday January 20th, API mobilized the necessary Labor, equipment, and materials to accomplish the following scope of work.
· Erect a negative air containment structure.
· Remediate areas of visible mold.
· Assess conditions in the wall interior.
· Provide final cleanup and demobilization.
· Provide bulk and air sampling and analysis prior and during the mold remediation.
· Investigate and report on the source of the factors contributing to the mold growth.
Moisture detection equipment was utilized to further delineate the work area. No additional moisture was detected by the instruments therefore the work area remained limited to the visible mold on the exterior wall. A 38’ x 9’x6’negative air containment structure was erected at the work area and maintained during the entire clean up procedure. The areas of visible mold were vacuumed with a HEPA filtered vacuum to remove the existing mold spores. The wall was then bio-washed with two applications of an anti-microbial agent.
Remote inspection equipment was utilized to view the conditions inside the wall cavity. Access holes were drilled at the base of the wall in 16” increments. The access holes enabled inspection and the application of an anti-microbial agent within the wall cavity. The inspection did not reveal signs of visible mold growth on the interior portion of the drywall. The conditions at the time of the inspection and remediation did not necessitate removal of the drywall. The mold growth was limited to the surface of the drywall that had been covered by an impermeable layer of wallpaper.
The three air handler units located within the work zone were cleaned and sanitized. The floors, walls and ceiling within the work zone were HEPA vacuumed and the containment was removed to complete the remediation process.
All work was performed utilizing trained personnel under the supervision of a council certified microbial remediation supervisor.
API performed air and bulk sampling before and after the remediation process. Air samples were taken using a high volume rotary vane air-sampling pump to draw approximately 105 liters of air through 25mm PCM cassettes. An air sample was taken outdoors to obtain background levels of existing mold. Air samples were taken indoors prior to and after the performance of the scope of work. A bulk sample of the visible mold was obtained from the drywall. The samples were sent to EMSL analytical Inc in Westmont NJ to be analyzed. Analysis results and chain of custody forms are attached to this report. The results of which are summarized in the attached reports.
Prevention and control of microbial growth is directly related to managing the conditions that affect the growth. A significant contributing factor that enhances a fungi’s ability to grow is the presence of moisture and humidity.
API has identified several factors that may be contributing to conditions of excess moisture/humidity and subsequently contributing to microbial growth.
· Impermeable wall covering on some interior walls.
· Lack of rain gutter system on building exterior.
· Wall construction does not have a vapor barrier.
· Supplemental wall mount heating and cooling units not specified in building design.
