Removal Techniques & Methods Flashcards

After mold removal, HEPA vacuuming of the remediated area should occur:

Answer: Before and after wet cleaning to capture loose spores at both stages

HEPA vacuuming both before and after wet cleaning maximizes spore capture at different stages of remediation.

Which statement about using bleach (sodium hypochlorite) on porous materials for mold removal is CORRECT?

Answer: Bleach is not recommended for porous materials because it cannot penetrate to kill mold roots

Bleach does not effectively penetrate porous materials to reach mold hyphae, making it largely ineffective and potentially masking the problem.

A mold remediation technician finds black mold on the back of vinyl wallcovering in a hotel room. The FIRST step should be:

Answer: Establish containment and negative air before disturbing the wallcovering

Containment and negative air must be established before disturbing any mold-contaminated material to prevent cross-contamination.

What does 'gross removal' mean in the context of mold remediation?

Answer: The bulk removal of heavily contaminated materials before detailed cleaning

Gross removal refers to the bulk removal of heavily mold-contaminated building materials as the first major remediation step.

When removing moldy ceiling tiles from a suspended grid ceiling, the worker should:

Answer: Mist tiles lightly before removal to suppress spore release, then bag immediately

Light misting suppresses airborne spore release during the physical handling and removal of contaminated ceiling tiles.

Which of the following describes a 'limited remediation' scenario per IICRC S520 guidelines?

Answer: Mold contamination affecting an area of 10 square feet or less

IICRC S520 classifies limited remediation as projects involving small affected areas, typically up to 10 square feet.

The removal of mold from a crawlspace with earthen floors typically includes which additional remediation measure?

Answer: Installing a vapor barrier over the soil after remediation

A polyethylene vapor barrier is installed after crawlspace remediation to prevent ground moisture from perpetuating conditions for mold regrowth.