Should I Close My Crawl Space Vents

When temperatures drop below the freezing point, water pipes in the crawl space are bound to freeze if the vents remain open. It’s a good practice to close off the vents in winter. Doing so prevents the dry, cold winter air from freezing the pipes inside the crawl space.

Should I close my crawl space vents in winter?

When temperatures drop below the freezing point, water pipes in the crawl space are bound to freeze if the vents remain open. It’s a good practice to close off the vents in winter. Doing so prevents the dry, cold winter air from freezing the pipes inside the crawl space.

Should foundation vents be open in summer?

Although air should circulate year-round through the attic, your house will probably be more comfortable if you cover the foundation vents in the winter. They need to be open in the summer, however, to prevent the build-up of moisture that can seriously damage your foundation.