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A Glossary of Disaster Restoration Terms

About This Glossary

When disaster strikes, whether it’s a flood, fire, storm, or hazardous spill, the aftermath can be overwhelming. For many home and business owners, navigating the recovery process comes with not only physical and emotional challenges but also a flood of unfamiliar industry terms. Understanding the language of disaster restoration is key to making informed decisions, communicating effectively with professionals, and regaining peace of mind throughout the recovery journey.

To help simplify the process, we’ve put together a glossary of common disaster restoration terms. This resource is designed to give you clear, straightforward definitions so you can better understand the services being offered, the steps involved in restoration, and the measures that keep your property and health protected.

All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Radiant Heating System

Radiant Heating System

Radiant heating system is a heating system that delivers warmth through surfaces, such as floors or walls, using hot water or electric elements. In restoration, these systems may require inspection and repair after water...

Radiation

Radiation

Radiation is the emission of energy in the form of waves or particles. In disaster restoration, radiation can refer to heat transfer from fire or specialized uses like UV light for sterilization.

Radon

Radon

Radon is a naturally occurring radioactive gas that can accumulate in buildings and pose health risks. Restoration professionals may test for radon when addressing foundation or ventilation issues.

Rafter

Rafter

A rafter is a sloped structural beam in a roof that supports roofing materials. Rafters may need repair or replacement after fire, water, or storm damage.

Registers

Registers

Registers are grilles or vents that cover openings in HVAC systems to allow air flow while controlling direction and volume. Registers may need cleaning or replacement during restoration after fire, water, or smoke damage.

Relative Humidity

Relative Humidity

Relative humidity (RH) is the percentage of moisture in the air relative to the maximum amount the air can hold at a given temperature. Monitoring RH is critical in restoration to prevent mold growth...

Remedial Investigation

Remedial Investigation

Remedial investigation is a thorough examination to assess contamination, damage, or hazards in a property before remediation begins. It helps restoration professionals plan effective cleanup and mitigation strategies.

Remediation Company

Remediation Company

A remediation company is a business specializing in cleaning, repairing, and restoring properties affected by water, fire, mold, or hazardous materials. These companies provide professional services to return properties to safe, functional conditions.

Remediator

Remediator

A remediator is a trained professional who performs remediation tasks, such as mold removal, water damage restoration, or biohazard cleanup.

Remove and Reset

Remove and Reset

Remove and reset is the process of temporarily removing fixtures, equipment, or materials and reinstalling them after restoration or construction work.

Repair

Repair

Repair is the act of fixing or restoring damaged property, materials, or systems to a functional condition.

Residential Sprinkler System

Residential Sprinkler System

A residential sprinkler system is a fire suppression system installed in homes that distributes water to control or extinguish fires. Restoration may involve inspection and repair if activated or damaged.

Residue

Residue

Residue is any leftover material, such as soot, dust, or chemical deposits, that remains after an incident. Residues often require specialized cleaning during restoration.

Resources

Resources

Resources include tools, personnel, equipment, and materials used to complete restoration or mitigation work efficiently and safely.

Restoration

Restoration

Restoration is the process of returning a property to its pre-damage condition after incidents such as water, fire, or mold damage.

Restorative Cleaning

Restorative Cleaning

Restorative cleaning refers to cleaning processes that not only remove dirt but also restore surfaces, materials, or equipment to their original condition.

Restorative Drying

Restorative Drying

Restorative drying involves techniques used to remove moisture from water-damaged materials and structures, preventing mold growth and further deterioration.

Retaining Wall

Retaining Wall

A retaining wall is a structure designed to hold back soil and prevent erosion or collapse. Restoration may include repairing retaining walls damaged by flooding, storms, or foundation issues.

Retardant

Retardant

A retardant is a substance applied to slow down or prevent the spread of fire or combustion.

Return Flow

Return Flow

Return flow is the flow of water, air, or another substance back toward a system, often used in plumbing or HVAC contexts.

Roof Drainage Systems

Roof Drainage Systems

Roof drainage systems consist of gutters, downspouts, and drains that help manage rainwater and prevent water accumulation on roofs. Restoration may involve cleaning or repairing these systems after storms or leaks.

Routine Cleaning

Routine Cleaning

Routine cleaning is the regular cleaning performed to maintain hygiene, safety, and appearance.

Runoff

Runoff

Runoff is water from rain or other sources that flows over surfaces instead of being absorbed. Proper management prevents flooding and water damage.

Rust

Rust

Rust is a reddish-brown oxide that forms on iron or steel due to oxidation. Rust can weaken materials and may require removal or repair in restoration projects.