CMI Certified Mold Inspector Exam

The current best practice for moisture control in crawl spaces per Building Science Corporation and ENERGY STAR is:

Maximum cross ventilation with large foundation vents on all sides Encapsulation with a continuous vapor barrier sealed to the foundation walls and controlled mechanical ventilation or conditioned air supply Covering only 50% of the ground with a 6-mil poly sheet Installing a sump pump and leaving the crawl space vented to outdoor air

Correct Answer:

Encapsulation with a continuous vapor barrier sealed to the foundation walls and controlled mechanical ventilation or conditioned air supply

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