Mold Remediation Protocol

Mold Remediation
Mold remediation in occupied commercial buildings will occur after hours or in vacant areas. We work with building managers and Mold Assessment Consultants to accomplish the remediation with zero impact to other work areas or employees.

Some remediation jobs are done with protocols provided by the Mold Assessment Consultant. Protocols are not required if visible mold is under 25 sf. The protocols are a guideline to a successful mold remediation.

The follow description outlines the mold remediation activities

First step is containment. There are 2 types of containment, minimal containment and full containment.

The minimal containment consists of installing critical barriers on all air vents, lights, windows, doorways, and wall fixtures.

Full containment includes the minimal containment but will also include HEPA vacuuming of all surfaces not being remediated then sealed with 2 layers of 6 mil poly plastic.

Common procedures are as follows
• Restrict access to only TDLR registered and licensed individuals.

• A notice in English will be posted stating, “ Mold Remediation project in progress. Authorized Personnel Only. Respirators and Protective Clothing are Required In This Area.”  This notice will stay up until clearance is achieved.

• Use GFI’s for all electric tools.
• Remove any inventory to a location designated by owner.
• The remediation area will be under containment.
• Set up critical containment at doorway entrance, lights HVAC vents and outlets using a single layer of 6 mil poly.
• Set up a 1 stage decontamination chamber at the entrance to the room.

• Place containment under negative pressure with minimum of 4 air changes per hour with no less than 0.02 inches w.g.

• Set up a dehumidifier to maintain humidity level below 50% + or – 5%
• Remove mold damaged drywall 2 ft beyond visible mold.
• Open wall cavities will be HEPA vacuumed and biocided.
• Mop flooring with an EPA registered biocide.
• Containment will be remain in place until clearance criteria is achieved & approved by environmentalist

• Use of a breathable coating such as Fosters 40-20 will be used on substrates where compatible. If required.

• Provide and use full face respirators. Provide and use HEPA filters labeled NIOSH and MSHA certification for Radionuclides, dust, fumes, mists including asbestos – containing dust and mist and color coded in accordance with ANSI 88.2 (1980). Provide cartridges that have each section of the combination canister labeled with appropriate color code and NIOSH/MSHA certification. Comply with 29 CFT 1910.134.

• Provide and use disposable clothing, protective gloves, e.g., polynitrile, ect., headwear and proper footwear.

• Install a flap on the door entering the decontamination chamber.
• Shut down and lock out each AHU before and during the remediation process.