Foundation/Crawl Space Vent Clearance

I’m looking for a code or standard for foundation/crawl space vent to grade clearance. Appreciate any help.

I do not think crawl spaces should be vented .

James please go to top left (Control Panel ) and put in your information so we have an idea where you live thanks Roy

Don’t think there is one. Common sense applies though. If too close, add a vent/window well.

I don’t think the general IRC has one. My state(north carolina 2012) amended IRC code has one though. Not sure how much this will help you.


R408.1.2 Foundation vent location.
…Vent dams shall be provided
when the bottom of the foundation vent opening is
less than 4 inches above the finished exterior grade.