IICRC S500 Water Mitigation

The homeowner - Answer- is responsible to take the necessary steps to preserve and protect their property from further damage Four principles of water damage restoration: - Answer- Provide for health and safety of workers and occupants; Document everything; Mitigate, and Dry Four principles of drying - Answer- Extract, Evaporate, dehumidify, control temp Extraction - Answer- is removing excess water and is the first step in mitigation Evaporation - Answer- is achieved by using energy (heat) to transform water trapped in porous materials into a vapor, thereby releasing the moisture from the materials. Dehumidification - Answer- the process of removing water vapor from the air. Rate of Dehumidification - Answer- must be at least equal to the rate of evaporation. True or False - Answer- Elevated vapor pressure in a room Can cause secondary damage to hygroscopic materials True or False - Answer- The control of temperature is important to enhance both evaporation and dehumidification for effective drying True or False - Answer- When temperature increases evaporation of absorbed water increases and water vapor suspended in air also increases. Classification of Water Intrusion - Answer- described as Class 1, 2, 3, or 4. Must be determined to calculate the amount of dehumidification required in drying process, based on the amount of wet surface area, permeance/porosity of materials in drying area. Class 1 - Answer- is the least amount of water absorption and evaporation load, affecting less 5% of porous materials with minimal absorption into low evaporation materials. Class 2 - Answer- has a significant amount of water absorption and evaporation load, affection 5-40% porous materials, with minimal absorption into low evaporated materials Class 3 - Answer- has the greatest amount of water absorption and evaporation load, affecting more than 40% porous materials and minimal absorption into low evaporated m