IICRC Written Exam Graded A+

Moisture levels of ______% will support destructive wood (rot) decaying fungi to grow on wood surfaces. - ANSWER-20% relative humidity - ANSWER-Is the ratio of the moisture suspended in air expressed as a percentage of total moisture holding capaciry of that air at a given temperature. ACM - ANSWER-Asbestos Containing Material Daily Humidity Record - ANSWER-Occurring at least every 12-24 hours the recording the relative humidity and temperature to determine Grains Per Pound (GPP). Areas not directly wet will experience humidity elevation. Therefore... - ANSWER-Technicians must isolate affected areas from non affected areas to gain best control of humidity. Vapor Pressure will always - ANSWER-...seek a level of equilibrium within a confined space. How many grains are in a pound of air? - ANSWER-7000 Humidity ratio/specific humidity - ANSWER-The amount of water in the air (by weight) contained in the parcel of air. What is the goal for day 2 drying? - ANSWER-To get the humidity under 70 to ensure mitigation. Dew point is also known as ___. - ANSWER-saturation temperature or condensation The Dew Point - ANSWER-the temperature at which the air becomes saturated with water vapor (100%RH) and condenses on the cooler surfaces. Where does condensation moisture cause mold? - ANSWER-Mold growth can occur in cold spots of homes and buildings where warm indoor air encounters cold outside air or vice versa. Fog - ANSWER-When the air meets the dew point temperature. Dew - ANSWER-The temperature at which condensation overwhelms evaporation. Why might condensation be bad? - ANSWER-Condensation with a bio film (an organic film like soap or glue) present allows mold to grow in a variety of surfaces from plastic to glass.