IICRC WRT Containment, Controlled Demolition and Material Removal 2

Question 1

When performing a flood cut on water-damaged drywall, where is the cut typically made?

Accepted Answer

At least 12 inches above the highest point of measured moisture wicking

Answer

Cutting above the highest measured wicking point ensures all wet and potentially contaminated material is removed.

Question 2

Before beginning controlled demolition in a home built before 1978, what must a technician consider first?

Accepted Answer

The possibility of lead-based paint requiring EPA RRP-compliant work practices

Answer

The EPA Renovation, Repair and Painting Rule applies to disturbing painted surfaces in pre-1978 housing.

Question 3

Which material is most commonly recommended for constructing temporary containment barriers?

Accepted Answer

Fire-retardant polyethylene sheeting, typically 6-mil

Answer

Polyethylene sheeting (often 6-mil, fire-retardant) is durable, impermeable and standard for containment.

Question 4

What is the main purpose of establishing negative air pressure inside a containment area?

Accepted Answer

To keep contaminants from migrating into unaffected areas

Answer

Negative pressure ensures air flows into, not out of, the containment, preventing contaminant spread.

Question 5

Wet carpet cushion (pad) affected by Category 3 water should generally be handled how?

Accepted Answer

Removed and discarded

Answer

Porous carpet cushion contaminated with Category 3 water cannot be adequately decontaminated and is removed.

IICRC WRT - Institute of Inspection, Cleaning and Restoration Certification Water Damage Restoration Technician Practice Test