Mixed Deck — All Flood Restoration Topics Flashcards

What is the purpose of drilling holes in walls during flood drying?

Answer: Allow air circulation to dry wall cavities

Drilling small holes at the base of walls allows air movers to circulate air into wall cavities where moisture is trapped, accelerating cavity drying.

What is the purpose of applying an antimicrobial during flood restoration?

Answer: To inhibit microbial and mold growth

Antimicrobials are applied to control bacteria and mold growth on affected surfaces.

Before using electrical drying equipment, what must be verified about the power source?

Answer: That circuits are dry, properly grounded, and GFCI-protected

Verifying dry, grounded, GFCI-protected circuits prevents shock and equipment damage.

What does a Safety Data Sheet (SDS) provide for chemicals used in restoration?

Answer: Hazard, handling, and first-aid information for the product

An SDS details hazards, safe handling, PPE, and first-aid measures for each chemical.

What is the recommended placement angle for air movers along walls during flood drying?

Answer: 45 degrees

Placing air movers at a 45-degree angle along walls creates a vortex effect that efficiently dries wall cavities and floor edges.

What is the critical time threshold after which Category 1 water is considered to degrade to Category 2?

Answer: 24-48 hours

Category 1 water that sits untreated for 24-48 hours can degrade to Category 2 as microbial growth and contamination from wet building materials increase.

Desiccant dehumidifiers have an advantage over refrigerant units specifically when:

Answer: Temperatures are very low or extremely low humidity levels must be achieved

Desiccant units use hygroscopic material to absorb moisture and are unaffected by cold temperatures that cause refrigerant coil icing and loss of performance.

What is the purpose of applying an antimicrobial after extraction?

Answer: To inhibit mold and bacterial growth

Antimicrobials are applied to treated surfaces to suppress microbial growth during drying.

Which building material is most likely to require removal rather than cleaning when contaminated with mold after a flood?

Answer: Drywall with paper facing

Drywall with paper facing is porous and mold penetrates the paper and gypsum core, making cleaning ineffective and removal necessary.

What additional safety measures are required for Category 3 water restoration compared to Category 1?

Answer: Full PPE including respirators, disposal of porous materials, antimicrobial treatment, and enhanced containment

Category 3 restoration requires full PPE (respirators, suits, gloves), removal of all porous materials, EPA-registered disinfection, and containment to prevent cross-contamination.

What should be done with food and porous items contacted by black water?

Answer: Discard them

Porous items and food contaminated by black water are unsafe and must be discarded.

How does increasing the air temperature in a drying environment affect the drying rate?

Answer: Higher temperatures increase the air's capacity to hold moisture, accelerating evaporation

Warmer air can hold significantly more moisture vapor, increasing the vapor pressure differential between wet materials and air, which drives faster evaporation.

What is the primary cause of mold growth in flood-damaged structures?

Answer: Elevated moisture content in building materials

Mold requires moisture to grow, and flood-damaged materials with sustained elevated moisture content provide ideal conditions for mold colonization.

What is the purpose of establishing a 'drying chamber' in structural drying?

Answer: Contain the drying environment to maximize equipment efficiency in a specific zone

A drying chamber uses poly sheeting to isolate a wet area, concentrating dehumidifier and air mover output to maximize drying efficiency within the contained zone.

What does 'protocol' mean in the context of a mold remediation plan?

Answer: A written scope of work detailing remediation procedures, containment, and PPE requirements

A mold remediation protocol is a written document prepared by an industrial hygienist specifying the scope, procedures, containment, PPE, and clearance criteria for remediation.

What is the term used to describe a water damage inspection?

Answer: Water damage assessment

A water damage inspection is specifically termed a 'water damage assessment.' This process involves thoroughly evaluating the extent of water intrusion, identifying the source, categorizing the water, and determining the scope of necessary repairs and restoration. It's a critical first step to understand the damage before any restoration work begins.

What action is required when a technician discovers asbestos-containing materials (ACM) while performing a flood cut?

Answer: Stop work immediately, secure the area, and notify the project manager and insurance company

Discovery of suspected ACM requires immediate work stoppage, area containment, and notification of the relevant parties, as ACM removal requires licensed abatement contractors under EPA law.

Mold typically begins to grow on wet materials within how long?

Answer: 24-48 hours

Under the right conditions mold colonization can start within 24 to 48 hours.

Which device is used to pump out large volumes of standing floodwater?

Answer: Submersible/sump pump

A submersible or sump pump removes deep standing water quickly before detailed extraction.

What documentation should a flood restoration contractor collect immediately upon arrival at a loss site?

Answer: Signed authorization to proceed, photo documentation of all damage, and pre-existing condition notes

Contractors must collect a signed work authorization, comprehensive photo documentation of all damage, and notes on pre-existing conditions before beginning any work.