Water Loss Mitigation Categories of Water Damage

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The IICRC (Institute of International Cleaning and Restoration Certification) is an American National Standards Institute (ANSI) standards developer. They produce standards for the cleaning and restoration Industry. The current standard that addresses water damage restoration is the S500 Standard and Reference Guide for Professional Water Damage Restoration (S500).

In the S500, water is described relative to its degree of contamination in 3 categories. The determination of the category helps restorers to determine the restorability of an affected material and to determine the need for personal protective equipment to be worn by restorers during restoration.

Water Intrusion Event: An incident involving the incursion of water into spaces that are occupied or can be occupied. The incident may involve clean or contaminated water that results from, but not limited to, broken dishwasher hose, a washing machine overflow, a dishwasher leakage, broken/leaking pipes, and clogged toilets. According to the Environmental Protection Agency, 13.7% of all water used in the home today can be attributed to plumbing leaks.[3] On average that is approximately 10,000 gallons of water per year wasted by leaks for each US home. A tiny, 1/8-inch crack in a pipe can release up to 250 gallons of water a day.[4] With broken water pipes ranking second only to hurricanes in terms of both the number of homes damaged and the amount of claims (on average $50,000 per insurance claim[5]) costs in the US,[6] it behooves homeowners to be judicious in protecting their homes against leaks. Experts suggest that homeowners inspect and replace worn pipe fittings and hose connections to all household appliances that use water at least one a year. This includes washing machines, dishwashers, kitchen sinks and bathroom lavatories, refrigerator ice makers, water softeners and humidifiers.

The following categories are published by Kenneth Aycox,  a certified water damage loss mitigation professional located in Cypress TX.

Category 1 water originates from a sanitary (clean) water source and does not pose substantial risk from dermal, ingestion, or inhalation exposure.  (i.e., broken water supply lines; tub or sink overflows with no contaminants; appliance malfunctions involving water-supply lines; melting ice or snow; falling rainwater; broken toilet tanks, and toilet bowls that do not contain contaminants or additives).

Category 2 Water – Refers to a source of water that contains a significant degree of chemical, biological or physical contaminants and causes discomfort or sickness when consumed or even exposed to. This type carries micro organisms and nutrients of micro organisms. Examples are toilet bowls with urine (no feces), sump pump failures, seepage due to hydrostatic failure and water discharge from dishwashers or washing machines.

Category 3 Water intrusion-  This water contains unsanitary agents, harmful bacteria and fungi, causing severe discomfort or sickness. Type 3 category are contaminated water sources that affects the indoor environment. This category includes water sources from sewage, all forms of flooding from seawater; rising water from rivers or streams, ground surface water or standing water, water entering or affecting the indoor environment, such as wind-driven rain from hurricanes, and tropical storms. Category 2 Water or Grey Water that is not promptly removed from the structure and or have remained stagnant may be re classified as Category 3 Water. Toilet back flows that originates from beyond the toilet trap is considered black water contamination regardless of visible content or color

Classes of water intrusion damage is determined by the probable rate of evaporation based on the type of materials affected, or wet, in the room or space that was flooded. Determining the class of water damage is an important first step, and will determine the amount and type of equipment utilized to dry-down the structure.

Class 1 – Slow Rate of Evaporation. Affects only a portion of a room. Materials have a low permeance/porosity. Minimum moisture is absorbed by the materials.

Class 2 – Faster Rate pf Evaporation.  Water affects the entire room of carpet and cushion. May have wicked up the walls, but not more than 24 inches. In a Class 2 water intrusion, there is a significant amount of water that has flowed into the area and wet materials are medium to high porosity for example carpet, gypsum wall board. The result is a greater absorption into materials, and that after the bulk water was removed there is a greater amount of water to evaporate to complete the drying.  The scope of what is wet generally is confined to what got wet as a result of what flowed across a floor with some adsorption into other materials.

Class 3 – Fastest Rate of Evaporation. Water generally comes from overhead, affecting the entire area; walls, ceilings, insulation, carpet, cushion, etc.  Class 3 water intrusion represents the greatest amount of absorption into materials, resulting in the highest potential rate of evaporation needed after the bulk water is removed.  It also includes a major part of all structural surfaces within the affected area, for example carpet, gypsum wall and ceiling board.

Class 4 – Specialty Drying Situations. Involves materials with a very low permeance or porosity, such as hardwood floors, concrete, crawlspaces, plaster, etc. Drying generally requires very low specific humidity to accomplish drying.

 

If you need Home & Commercial Water Damage Extraction Mitigation in Houston, TX please visit our home page at http://aycox.com/water-damage-houston-tx/ or Call us at (866)  808-6707.

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