Building Science Insights for Kent County Properties
Older Michigan building codes originally mandated foundation vents to let moisture escape. Modern building science has proved this method backfires in humid climates like West Michigan.
When warm 85°F outdoor air with 75% humidity enters a cool 60°F crawl space, it cools down rapidly. Cool air holds far less water vapor, causing instant condensation on structural wood beams and ductwork.
By installing airtight, insulated vent covers, sealing rim joists, and laying a 20-mil sealed vapor liner, you convert your crawl space into a clean, conditioned buffer zone. This eliminates wood rot risk and reduces annual utility bills by up to 18%.