Travis Brungardt walks through the realities of retrofitting a conditioned crawl space during a renovation, contrasting it with the relative simplicity of building one new. He explains how older crawl spaces are often unconditioned, uneven, and full of debris, creating challenges for insulation, moisture control, and access. The process involves cleaning, leveling the ground, and using mineral wool insulation to create a continuous thermal layer beneath the floor system. Brungardt details the importance of encapsulation with a sealed vapor barrier to block soil gases and moisture, along with managing bulk water and humidity. He also highlights how poor crawl space conditions can impact indoor air quality and overall building performance.

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