NRPP Radon Mitigation Specialist (RMS) Exam

What is the stack effect and how does it relate to radon entry?

Warm air rising creates negative pressure at lower levels, drawing in soil gases Cold air sinking pushes radon out of the building Wind against the building forces radon through windows The stack effect only occurs in buildings with chimneys

Correct Answer:

Warm air rising creates negative pressure at lower levels, drawing in soil gases

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