FEMA EC Question

All of the "engineered flood vents" that I have come in contact with have had a certification letter from the manufacturer.
I have only seen them on new construction, so getting a copy of the letter has not been difficult.
There may be a name on the flood vents that you can look for the manufacturer.

Dan, what does an engineered vent look like?

I've seen several different kinds, with most looking like a dryer vent, but some "fancy" kind were oval shaped and I was damn glad they had the area calculated in square inches.

http://crawlspacedoors.com/catalog/index.php/cPath/14

This might help...

SmartVent Catalog

DDSM

I have done several EC with engineered vents. In this context they refer to any opening purposely constructed; as opposed to a varmit made, car smashed or weather induce hole in the wall.

> I have done several EC with engineered vents. In this context they refer to any opening purposely constructed; as opposed to a varmit made, car smashed or weather induce hole in the wall.

Gene, that is what I thought but read page 24 in the link.

I must admit that sounds technical; I'm just going with what we are required to do in Galveston. Despite the handbook instructions, your local CFM calls the shots.