Crawl Space Encapsulation: frequently asked questions
These answers are general. For your situation, check the official sources listed below or ask a professional.
What is crawl space encapsulation?
Covering the floor and walls of the crawl space with a sealed heavy vapor barrier, closing the vents and controlling humidity with a dehumidifier or conditioned air.
Is encapsulation allowed by the building code?
Yes, the residential code allows closed, conditioned crawl spaces when they meet its requirements.
Does it save energy?
It can make floors warmer and reduce humidity loads, depending on the home and climate.