Most common vents have a front flange surrounding the entire vent face extending to cover 1 1/2" of wall space around the vent.
So.  Let's look at why this option is so versatile and so high in demand.
First, contractors and homeowners can easily install without the worry of making a mistake.
Cutting the opening slightly too big is alright.  A full 1 1/2 inch cover nail fin will cover this gap.
The opening is not exactly square or of the correct shape.  That's fine.  The flange will cover this too.
Now, let's look even deeper into this.


And, yes, the video is old and will be replaced soon.  But it shows the view for 360 degrees.

No matter the depth of the vent, the face and trim will be the same.
1.5 inch nail fin plus 1 inch of vent facial coverage to make the appearance of 2 1/2 inches of vent trim.

Take this triangle louver vent for example.  Notice the bottom louver is wider on the front than the other slats.
This is the bottom flange extending an inch and a half past the vent to cover the siding under it.
The top trim looks to be 2 1/2", yet only 1 1/2 inches are of the fin.

The back shows the definition of the flange with the vent protruding back.
Yes, we do offer the option of aluminum bug screen an adding the 1/2" wire mesh for larger 4 legged creatures.

From the side, the face trim or flange is seen as very thin.  Only 2 metal layers, while this vent is 1" deep.

This is true for the Decor Vents as well.  If a front flange is ordered, the vent will be 1" deep with 1 1/2" of nail fin past it.

Now, don't get me wrong.  "Nail Fin" does not mean it has to be nailed.
Fasteners such as screws can easily be applied and hidden to retain the beauty and integrity of the home's facade.



Still have unanswered questions?
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