Depressurization

Riley Carey Leave a Comment

n houses, a condition that exists when the air pressure inside the house is slightly lower than the air pressure outside or the soil gas pressure. The lower levels of houses are essentially always depressurized during cold weather, due to the buoyant force on the warm indoor air (creating the natural thermal stack effect). Houses can also be depressurized by winds and by appliances which exhaust indoor air. Radon-containing soil gas is drawn more rapidly into a house under the depressurized condition.

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