How far must one foundation vent be located from each corner of the building?

The requirement for the distance of one foundation vent from each corner of the building is set to ensure adequate ventilation for the crawlspace or foundation area while also providing structural integrity to the building. Positioning the vent at least 3 feet from each corner helps prevent any obstruction or blockage that might occur near the corners, where the structural framing intersects. This distance allows for effective air circulation within the crawlspace, which is crucial in reducing humidity and preventing mold or rot in the wooden components of the structure.

Therefore, the standard of having the foundation vent located 3 feet from each corner is both a practical and regulatory guideline that aligns with building codes aimed at promoting a healthy living environment and maintaining the longevity of the building structure.