To understand louver vents, first is knowing the parts.
The depth of the side wall of the vent will be determined by many factors.
Such as the depth allowance by the wall studs or other framing.
Also shorter vents may be better ventillation with a smaller depth.
Under 12 to 24 inch height usually works better with the 1 in depth depending upon the shape.
Around 24 inch may be best with the 2 inch deep.
Yet some vent shapes are fine with the 3.5 inch vent wall at 24 inch height.
And the 5.5 inch depth is mostly for high risk weather areas, like hurricane prone coastal.
Also, mounting the vent can be much easier with the correct flange or nail fin to suit the cladding being used.
With the full customization options of these, pre existing walls as old as 200 years old,
all the way to today of new construction, there is a vent for every construction project and upgrade.
The depth of the side wall of the vent will be determined by many factors.
Such as the depth allowance by the wall studs or other framing.
Also shorter vents may be better ventillation with a smaller depth.
Under 12 to 24 inch height usually works better with the 1 in depth depending upon the shape.
Around 24 inch may be best with the 2 inch deep.
Yet some vent shapes are fine with the 3.5 inch vent wall at 24 inch height.
And the 5.5 inch depth is mostly for high risk weather areas, like hurricane prone coastal.
Also, mounting the vent can be much easier with the correct flange or nail fin to suit the cladding being used.
With the full customization options of these, pre existing walls as old as 200 years old,
all the way to today of new construction, there is a vent for every construction project and upgrade.