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Building Code questions

Kevin_D's picture

Hi All,

Has anyone ever been called out for using "Faux Vents?"


I tried looking up any applicable code in the IRC, but none seemed to apply. R806 is the roof ventilation section, but really doesn't have anything applicable. 


That made me wonder if they're considered "siding," since they aren't functional.

If they're siding then it seems that none of the manufacturers follow code, is that correct? I say this because siding (R703) requires things like "Wind resistance" 703.1.2 which none of the vent manufactures test for that I could find. 

It kinda seems like inspectors just ignore this though.


Any feedback?

I appreciate your responses. 

feedback? (post #207331, reply #1 of 8)

I'm having a hard time understanding the question.

What are faux vents?

And what are the inspectors ignoring?


A Great Place for Information, Comraderie, and a Sucker Punch.

Remodeling Contractor just outside the Glass City.


Hi Calvin,  I'm sorry I was (post #207331, reply #2 of 8)

Hi Calvin, 

I'm sorry I was unclear. 

Faux vent are just non-functioning decorative vents. Here are some examples: 

Essentially they look like a vent, but serve no function other than decorative. 


So what I was asking is:

a.)Since they are non-functioning vents, does that make them siding?

     1.) If they are considered siding, how come there is no testing data for things like wind resistance (R703.1.2)

Is there any testing data........... (post #207331, reply #3 of 8)

for aluminum or vinyl soffit?    or vinyl / alum. siding for that matter?

I don't live in a coastal zone or Fla so have never seen any inspector inspect siding or trims install.  Their final isn't much but the step ratio, railings, lights and plumbing and the good ones-water management.


Believe me, until the majority of jurisdictions start using the IRC as their bible, not much will change here in my corner of Ohio.  Of course, I'm just a remodeler who's last addition was 3 yrs ago.

and thanks for fleshing out your question-I was lost.

A Great Place for Information, Comraderie, and a Sucker Punch.

Remodeling Contractor just outside the Glass City.


Well the specific install is (post #207331, reply #4 of 8)

Well the specific install is fiber cement siding, but the question is just kind of general. 


The 2 of 3 local inspectors are really nice, but 1 like to nitpick random stuff like this. It was suggested that it may need to have a professional engineer's stamp. 


I think I'm going to call the Tapco group. I also used their Sturdimount blocks ( for the lights and hose bibs. If anyone had an engineer check their stuff, it's them. I'll ask them if they had an engineer do load tests and if it's required. 


Either that or have the inspector come back out, 66% chance of getting the nice one isn't too bad. 

Thanks Kevin. (post #207331, reply #7 of 8)

No joke, where are you located that there'd be a call for a stamp on a stink'n vent?  What about the mailbox?

Mama mia, I'm glad to be here in the NW corner of the fine state of Ohio, where we relish in an opportunity to keep the Michigan bb team from walking over us to a #1 ranking.

A Great Place for Information, Comraderie, and a Sucker Punch.

Remodeling Contractor just outside the Glass City.


IRC section 703.1.2 refers (post #207331, reply #5 of 8)

IRC section 703.1.2 refers you back to section 301.2, table 2, and that table considers wall areas in a range that statrts at 10 sq. ft.

The faux vents would all be considerably less than that. It may be the vents are considered to be decorative items that are replacable as an individual unit, thus not being in the same category as siding since replacement cost would be minor.

I'm basing this on the fact that the table lists both positive and negative pressures on siding, which, to me, means that the underlying concern is to prevent large sections of siding from being either sucked or blown off the frame.

rdesigns,   Thanks! I (post #207331, reply #6 of 8)



Thanks! I didn't see that the table starts at 10 squarefeet.

I don't think the Sturdimount would be considered as more replacemable than siding. The siding slips over the flange, so it would be difficult to replace. Most of the faux vents would be though, since they don't have a flange (boo). 

I agree with you that the wind loads have to do with windblown debris as well as the fact you don't want your house flying apart. The siding would also help secure it to the building (for wind load purposes). 

I sent Tapco an email asking about the Sturdimount, so I'm curious to see what they say. 


I'd say commonsense dictates it's just fine. The Sturdimount a tiny piece with 8 roofing nails holding it to the building, the windows would blow off first. The vents can be glued and screwed, so they would be well secured too. I'm curious to hear what Tapco has to say though. 

I got the following response (post #207331, reply #8 of 8)

I got the following response from Tapco: 


"Good Morning,

Unfortunately,  there are no code requirements for this product, so we do not have this type of documentation.  Would you like the spec sheets or installation guide for these products?   Let me know.




So I guess it's just not covered by building code. Weird, but cool I guess? 


Edit: To be clear this is in response to the Sturdimounts only. The receptacle, light and hose bib ones were the ones I mentioned (since I actually DID use those : D)