Phase 3 – Surfaces

Forensic cleaning is the comprehensive and complete remediation of contaminated structures to pre-event conditions. Surfaces need to be cleaned using appropriate chemistry, with mechanical action, to disinfect and to remove the contaminants.

Equipment:

  • Backpack HEPA Vacuums: For dust removal and cleaning exposed studs.

  • Backpack Foamer/Sprayer: To apply chemistry for extended dwell times.

  • Ryobi Electric Scrubbers: Hand-held and telescopic poles with rotating nylon brush.

  • Mop Poles with Heads: Hand-held for 5”, and telescopic poles for 19”.

  • Mop Cloths: 5” and 19” microfiber cloths, disposable.

  • Cloth Rags: For corrosion control.

  • PPE: Coveralls, full face respirator or half face with safety glasses, gloves.

Chemistry:

  • Thermal Fogger Chemistry: KBG Thermo55. Fog entire volume airspace all room.

  • Liquid Cleaner: 409®, Vital Oxide, Soap and Water, anything is sufficient for corrosion control.

  • Equipment: Chem Decon A/B.

  • Non-Surfactant: Vital Oxide. Window sills, cabinets, vanities, unpainted (stained) doors and other woodwork. Last step on walls and ceilings with microfiber wipe.

  • Glass Cleaner: For windows.0

Procedure:

HEPA exposed studs and OSB.

Dry mop the painted walls and ceiling.

Foam the walls with A/B. Spray A/B on exposed studs and OSB.

Using Ryobi battery scrubbers, scrub walls and ceilings. Let chemistry dwell.

5. Mop walls and painted walls and ceilings.

6. Soak microfiber in bucket of Vital Oxide, lightly squeeze excess liquid.

7. Mop walls and ceilings with Vital Oxide.

Conclusion:

Surface cleaning serves multiple purposes. Disinfect, Deodorize, Clean, Soot Removal. Ensure sufficient dwell time for chemistry to act. Foaming and scrubbing and mopping serves that purpose.