IICRC - Commercial Drying Specialist
2025 – Simplified QUESTIONS AND
ANSWERS WITH VERIFIED SOLUTIONS
100% CORRECT!!!
principles of restoration - ANSWER✔✔safety of workers & occupants // inspect &
document (initial, on-going, final) // mitigate further damage by controlling the
spread of water and contaminants// clean and dry // complete the restoration and
repairs (remove excess water, water vapor through
dehumidification/ventilation/controlled temp, enhance evaporation)
commercial vs residential differences - ANSWER✔✔1) size & complexity of
mechanical and HVAC systems // 2) building's electrical systems vary in
complexity and voltage & Training may be required // 3) Energy Management
System // 4) Security and public access // 5) Multiple Interested Parties // 5)
construction practices, materials and codes are complex and varied
commercial building - ANSWER✔✔retail, office, mixed-use, warehouse // power
may be lighter and single phase or 3 phase // type of building determines
construction, HVAC and build-out density
industrial building - ANSWER✔✔manufacturing, foundry, distribution // plenty of
power // tightly controlled security // escort may be necessary // safety training to
enter // raised-floor to allow for cabling, power distribution and process control
lines
institutional building - ANSWER✔✔public facilities (schools, hospitals, municipal
buildings, sports complexes, airports, libraries, government facilities) // issues of
power availability // public access, security // various layers of authority and
organizational hierarchy // healthcare will have regulatory agencies to sign-off of
certification to re-open // decision making process may be lengthy
,complex residential - ANSWER✔✔residential facilities (townhouse,
condominium, apartment complex, hotel, multi-family dwelling, large single
family mansions) // accessing units may be difficult // condo laws define
responsibility for walls and materials // units remaining wet can impact drying of
others // condos can require large amount of small equipment
historical buildings - ANSWER✔✔all over the world // may be scattered in and
around modern buildings // often on national/local historical registries and pose
unique challenges // outdated and inadequate power // funding issues // required
approval by 3rd party organizations (historical registries) or specialized experts
(preservationists)
initial inspection priority - ANSWER✔✔determine potential for injury, hazards
and risks to workers and occupants
HVAC varies by... - ANSWER✔✔size and complexity varies // fire sprinklers //
computer server rooms and networks // multiple zones // understanding HVAC
zones will help reduce the potential for cross-contamination and help maintain
drying environment
electrical designations - ANSWER✔✔volts / phase / hertz
EMS - ANSWER✔✔Energy Management System (building management systems)
// EMS cycle runtime of various systems to save energy and may be managed off
site // EMS cycle varies to save energy // might be managed off site // impact
drying environment //
, public access and security - ANSWER✔✔onsite security is handled by 3rd party //
security clearances & escorts are required in secure facilities // lengthen time to
mobilize equipment and personnel // prevents theft & unauthorized entry
MIPS - ANSWER✔✔multiple interested parties create more complexity with
project management, communication, administration // daily meetings might be
scheduled // competing agendas with varying priorities
complexities of commercial - ANSWER✔✔multiple construction, materials, codes
and practices can converge in same building due to multiple renovations // this can
cause delay
5 steps of initial visit - ANSWER✔✔1. Hazard Identification & Risk Assessment
2. Preliminary Determination water category 3. Establish dry standard(s) 4.
Determine drying goal(s) 5. Identify need for specialized experts
categories of water - ANSWER✔✔range of contamination determined by restorer
/// cat 1 = clean, little risk( water supply lines, falling rainwater) // cat 2 =
discomfort or sickness (overflow from washing machines, broken aquariums) // cat
3 = grossly contaminated (sewage and water back flow)
class of water - ANSWER✔✔amount of water absorption and evaporation load //
class 1 = less than 5% // Class 2 = significant, 5-40% // class 3 = greatest, more
than 40% // class 4 = deeply held or bound
dry standard - ANSWER✔✔reasonable approximation of moisture content or level
of a material PRIOR to loss
2025 – Simplified QUESTIONS AND
ANSWERS WITH VERIFIED SOLUTIONS
100% CORRECT!!!
principles of restoration - ANSWER✔✔safety of workers & occupants // inspect &
document (initial, on-going, final) // mitigate further damage by controlling the
spread of water and contaminants// clean and dry // complete the restoration and
repairs (remove excess water, water vapor through
dehumidification/ventilation/controlled temp, enhance evaporation)
commercial vs residential differences - ANSWER✔✔1) size & complexity of
mechanical and HVAC systems // 2) building's electrical systems vary in
complexity and voltage & Training may be required // 3) Energy Management
System // 4) Security and public access // 5) Multiple Interested Parties // 5)
construction practices, materials and codes are complex and varied
commercial building - ANSWER✔✔retail, office, mixed-use, warehouse // power
may be lighter and single phase or 3 phase // type of building determines
construction, HVAC and build-out density
industrial building - ANSWER✔✔manufacturing, foundry, distribution // plenty of
power // tightly controlled security // escort may be necessary // safety training to
enter // raised-floor to allow for cabling, power distribution and process control
lines
institutional building - ANSWER✔✔public facilities (schools, hospitals, municipal
buildings, sports complexes, airports, libraries, government facilities) // issues of
power availability // public access, security // various layers of authority and
organizational hierarchy // healthcare will have regulatory agencies to sign-off of
certification to re-open // decision making process may be lengthy
,complex residential - ANSWER✔✔residential facilities (townhouse,
condominium, apartment complex, hotel, multi-family dwelling, large single
family mansions) // accessing units may be difficult // condo laws define
responsibility for walls and materials // units remaining wet can impact drying of
others // condos can require large amount of small equipment
historical buildings - ANSWER✔✔all over the world // may be scattered in and
around modern buildings // often on national/local historical registries and pose
unique challenges // outdated and inadequate power // funding issues // required
approval by 3rd party organizations (historical registries) or specialized experts
(preservationists)
initial inspection priority - ANSWER✔✔determine potential for injury, hazards
and risks to workers and occupants
HVAC varies by... - ANSWER✔✔size and complexity varies // fire sprinklers //
computer server rooms and networks // multiple zones // understanding HVAC
zones will help reduce the potential for cross-contamination and help maintain
drying environment
electrical designations - ANSWER✔✔volts / phase / hertz
EMS - ANSWER✔✔Energy Management System (building management systems)
// EMS cycle runtime of various systems to save energy and may be managed off
site // EMS cycle varies to save energy // might be managed off site // impact
drying environment //
, public access and security - ANSWER✔✔onsite security is handled by 3rd party //
security clearances & escorts are required in secure facilities // lengthen time to
mobilize equipment and personnel // prevents theft & unauthorized entry
MIPS - ANSWER✔✔multiple interested parties create more complexity with
project management, communication, administration // daily meetings might be
scheduled // competing agendas with varying priorities
complexities of commercial - ANSWER✔✔multiple construction, materials, codes
and practices can converge in same building due to multiple renovations // this can
cause delay
5 steps of initial visit - ANSWER✔✔1. Hazard Identification & Risk Assessment
2. Preliminary Determination water category 3. Establish dry standard(s) 4.
Determine drying goal(s) 5. Identify need for specialized experts
categories of water - ANSWER✔✔range of contamination determined by restorer
/// cat 1 = clean, little risk( water supply lines, falling rainwater) // cat 2 =
discomfort or sickness (overflow from washing machines, broken aquariums) // cat
3 = grossly contaminated (sewage and water back flow)
class of water - ANSWER✔✔amount of water absorption and evaporation load //
class 1 = less than 5% // Class 2 = significant, 5-40% // class 3 = greatest, more
than 40% // class 4 = deeply held or bound
dry standard - ANSWER✔✔reasonable approximation of moisture content or level
of a material PRIOR to loss
