RestoreRadarProperty damage restoration glossary
Plain-English definitions, source notes, and clear explanations for homeowners.
Water damage, mold remediation, and restoration terms
Use this glossary to understand terminology you may see in an estimate, scope of work, drying log, or insurance claim. Each entry tells you whether the wording is an industry or agency definition, an organization description, or a RestoreRadar summary. The plain-English explanation follows immediately below.
- Water mitigation
RestoreRadar summary Time-sensitive work performed after a water intrusion to control the source when feasible, remove water, protect affected property, and limit additional damage while the restoration scope is established.
In plain English This is the stop-the-damage phase: stop the water if it is safe to do so, extract standing water, and begin controlled drying.
Sources RIA Glossary of Damage Restoration Terms (2013), p. 13, “Temporary Repairs” FEMA NFIP Claims Manual (June 2025), Claims Journey pp. 49–53
- Restoration
Industry definition Work intended to return property toward its pre-damage condition by removing damaging residue or odor and remedying damage while preserving original components and appearance as much as possible.
In plain English This is the recovery work that cleans and repairs damaged property instead of replacing everything automatically.
Sources RIA Glossary of Damage Restoration Terms (2013), p. 11, “Restore”
- Mitigation vs. restoration
RestoreRadar summary Mitigation is work intended to secure property and limit additional damage after a loss. Restoration is work intended to return damaged property toward its pre-damage condition. A project may include both.
In plain English Mitigation keeps the loss from getting worse. Restoration handles the cleaning and repairs needed to recover.
Sources RIA Glossary of Damage Restoration Terms (2013), p. 13, “Temporary Repairs” RIA Glossary of Damage Restoration Terms (2013), p. 11, “Restore”
- Mold remediation
RestoreRadar summary The process of correcting contamination by controlling its spread, removing or cleaning affected materials, and addressing conditions that support the contamination.
In plain English For mold, that means fixing the moisture problem, keeping contamination from spreading, and physically removing or cleaning affected material.
Sources ANSI/IICRC S520 (2024) EPA mold remediation guidance
- Category 1 water
RestoreRadar summary Water that begins at a sanitary source and presents no substantial exposure risk under the job-site conditions evaluated.
In plain English A broken supply line may start as Category 1. What the water touches, how long it remains, and site conditions can change its category.
Sources ANSI/IICRC S500 (2021, current edition) IICRC S500 water-category position statement (January 2026), inspection and determination sections, pp. 2–6
- Category 2 water
RestoreRadar summary Water whose contamination level creates a meaningful risk of discomfort or illness through contact or consumption.
In plain English This water may still look clear. The category is about contamination, not color, and appliance discharge is only an example—not an automatic classification.
Sources ANSI/IICRC S500 (2021, current edition) IICRC S500 water-category position statement (January 2026), inspection and determination sections, pp. 2–6
- Category 3 water
Industry definition Grossly contaminated water that can contain disease-causing, toxin-producing, or other harmful agents and can cause significant adverse reactions if people contact or consume it.
In plain English Sewage and rising river or seawater are common examples. Rain entering from above is not automatically Category 3; the source, path, materials, time, temperature, and evidence of contamination must be evaluated.
Sources IICRC S500 water-category position statement (January 2026), Section B, pp. 4–5 EPA flood cleanup guidance (2026)
- Structural drying
RestoreRadar summary A controlled and documented process for reducing excess moisture in structural materials and assemblies to project-specific drying goals.
In plain English Crews combine extraction, airflow, dehumidification, sometimes heat, and repeated moisture readings until affected materials reach documented targets.
Sources FEMA NFIP Claims Manual (June 2025), Claims Journey pp. 49–53 and Appendix D
- Dehumidification
RestoreRadar summary Mechanical removal of water vapor from the air to lower humidity and support evaporation and drying of wet materials.
In plain English Air movement helps moisture leave wet materials; dehumidifiers collect that moisture from the air so the drying process can continue.
Sources RIA Glossary of Damage Restoration Terms (2013), p. 5, “Dehumidifier” FEMA NFIP Claims Manual (June 2025), Appendix D
- Moisture mapping
RestoreRadar summary A documented spatial record of moisture-reading locations, material types, comparison readings, drying goals, and changes observed during drying.
In plain English Moisture meters provide the readings. Infrared imaging can reveal temperature patterns worth investigating, but it does not directly measure moisture or prove hidden water by itself.
Sources FEMA NFIP Claims Manual (June 2025), Claims Journey p. 52 NIH unwanted-moisture technical bulletin (September 2017), p. 1
- Containment
Industry definition Isolation of a contaminated work area with plastic sheeting or similar barriers to help prevent contaminated material from spreading through the building.
In plain English Crews may seal doors, vents, and openings with plastic and use negative air. The setup depends on the contamination, project size, and risk of spread.
Sources RIA Glossary of Damage Restoration Terms (2013), p. 4, “Containment” EPA Mold Course, Chapter 6, “Overview of Containment”
- Antimicrobial pesticide
EPA definition A substance or mixture intended to destroy or suppress harmful microorganisms on inanimate objects and surfaces.
In plain English It is not automatically a cleaner, not a substitute for removing mold or fixing moisture, and it must be used only as its label permits.
Sources EPA antimicrobial-pesticide definition (2026) EPA flood cleaning-product guidance (2026) ANSI/IICRC S520 (2024)
- Board-up and tarping
RestoreRadar summary Temporary protective work that secures openings or covers a damaged roof or exterior assembly to reduce weather intrusion, unauthorized entry, and additional damage until permanent repair.
In plain English Plywood can secure a broken door or window; a tarp can temporarily cover a roof opening. Both reduce exposure while permanent work is arranged.
Sources RIA Glossary of Damage Restoration Terms (2013), p. 3, “Board Up” RIA Glossary of Damage Restoration Terms (2013), p. 13, “Temporary Repairs”
- IICRC
Organization description The Institute of Inspection, Cleaning and Restoration Certification is an ANSI-accredited standards-development organization and a credentialing body for the inspection, cleaning, and restoration industries.
In plain English IICRC publishes standards such as S500 for water damage and S520 for mold and certifies technicians and firms. A certification is not the same thing as a state or local contractor license.
Sources IICRC organization statement (January 2026), “About IICRC” section ANSI/IICRC S500 ANSI/IICRC S520
- Pre-loss condition
Industry definition The appearance and state of repair that existed before the damage occurred.
In plain English This is the condition the property was in immediately before the loss—not an automatic promise to make every item brand new.
Sources RIA Glossary of Damage Restoration Terms (2013), p. 10, “Pre-Loss Condition”
- Scope of work
Industry definition A detailed description of the repairs or restoration work required at a specific damaged property.
In plain English This is the written list of what the contractor proposes to clean, remove, dry, repair, or replace—and what is outside the job.
Sources RIA Glossary of Damage Restoration Terms (2013), p. 12, “Scope, Scope of Repair”
- HEPA filter
EPA definition A pleated mechanical air filter that can theoretically remove at least 99.97 percent of airborne particles measuring 0.3 microns.
In plain English HEPA filtration can capture very small airborne particles, including mold particles. The filter is one part of control and cleanup, not proof that a building is remediated.
Sources EPA, “What is a HEPA filter?” (updated January 2026)
- Negative air pressure
EPA definition A condition in which a space exhausts more air than it receives, leaving its air pressure lower than the surrounding areas so air flows inward through openings.
In plain English In mold containment, inward airflow helps keep contaminated air from escaping into cleaner parts of the building.
Sources EPA Mold Course, Chapter 6, “Overview of Containment” EPA Mold Web Course glossary, p. 67
- Drying log
RestoreRadar summary A dated project record of affected materials, moisture readings, drying goals, temperature and relative humidity, and the drying equipment used and monitored over time.
In plain English It shows where the crew measured, what equipment ran, how conditions changed, and whether materials were moving toward the documented drying target.
Sources FEMA NFIP Claims Manual (June 2025), Claims Journey pp. 51–53
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