• Welcome to The Building Code Forum

    Your premier resource for building code knowledge.

    This forum remains free to the public thanks to the generous support of our Sawhorse Members and Corporate Sponsors. Their contributions help keep this community thriving and accessible.

    Want enhanced access to expert discussions and exclusive features? Learn more about the benefits here.

    Ready to upgrade? Log in and upgrade now.

Class A trellis?

Yikes

SAWHORSE
Joined
Nov 2, 2009
Messages
3,963
Location
Southern California
I received a plan check correction stating that my freestanding metal trellis in the yard of a senior apartment building needs to have a class A roof rating.

Is a trellis (individual steel tubes, spaced several inches apart so that sunlight and rain can pass through, allows for shade vines to grow on it) considered a "roof"?

If so, how do I obtai9n a roof classification for steel members?
 
your kidding? a trellis is not a roof assembly nor does it cover a roof deck. See definitions.

1505.2 Class A roof assemblies.

Class A roof assemblies are those that are effective against severe fire test exposure. Class A roof assemblies and roof coverings shall be listed and identified as Class A by an approved testing agency. Class A roof assemblies shall be permitted for use in buildings or structures of all types of construction.

Exception: Class A roof assemblies include those with coverings of brick, masonry, slate, clay or concrete roof tile, exposed concrete roof deck, ferrous or copper shingles or sheets.
 
Is this an arched trellis? Like mtc sez, not a roof!

Who did the reveiw, "Mel Trellis?"

Humor
 
Why Class A instead of Class B or C? That seems like overkill...

Is it possible that there are vines that have been listed?

Or perhaps a shrubbery?
 
If it's all steel it would be Type II-B construction. Table 1505.1 (2009 IBC) and Table 1506.1 (2006 IBC) only require a Class C roof.
 
Not new to the board... and, yes, I feel dumb for asking... but the plan checker for this project (in the City of Los Angeles) wrote it as a correction without citing a code reference, and I just wanted to make sure I wasn't also missing something in the code.
 
This doesn't surprise me. I've even seen that City's inspespector asking some corrections which will damage building, and I even tought contractor walk up to their supervisor to check their qualifications.
 
Yikes said:
Not new to the board... and, yes, I feel dumb for asking... but the plan checker for this project (in the City of Los Angeles) wrote it as a correction without citing a code reference, and I just wanted to make sure I wasn't also missing something in the code.
I was joshing mtlogcabin...see the quote.
 
In response to both of the above questions, I don't know, but it must be one that looks nice, and is not too expensive.

And apparantly one that is Class A listed, although Class C is all that would be necessary.
 
No, it's not in a special fire district, wildland area, or anything else. It's in suburban San Fernando Valley. My client paid extra for an expedited plan check.

What we got back from the city was a bunch of standard corrections, including for items that were clearly shown on the plans.

Example: "Provide 2 copies of the retaining wall calculations", when we had clearly provided them... the plan checker reutrned the check set to me with the two sets of calcs rubber-banded around the rolled-up plans.

I'm really frustrated because it feels like all we accomplished with the expedite was to waste our time by getting only a cursory review. Now I have to go into backcheck and point out to the checker all the things his missed on his first check. If it takes a face-to-face meeting to get a real plan check, why can't I do that in the first place, and not waste time with a faux expedited check?

FWIW, I have submitted similar plans previously to the city in a non-expedite process for other projects, and they've found the items they were looking for: accessibility notes, etc. So I don't think this recent case of standard note dumping has to do with the quality or readability of our own plans.

It's as if the initial phase of plan check has become totally passive: "I don't want to read anything on your plans, but here's a list of typical reasons why I might not approve other projects like this. Come back again and make presentation to me, proving point-by-point that these problems don't exist on your project; that way I still won't need to read your plans in order to approve them."
 
Last edited by a moderator:
Have you called to speak with the plans examiner about the specific items? Many times you can walk him through his own comments while he's looking at the plans, and solve most if not all of the problems.
 
Yikes - I truley understand your frustrations and have been guilty of missing a comment on plans before - However, when looking at 900 sets of plans a year, no deisgner or deisgner firm uses the same layout or format for printed copies of plans - However, I will say that I usually called the designer to review comments prior to sending list out ---- It let the designer have an opportunity to direct me to the location of the note (if there) and/or gave them a heads up on what we were looking for.

A phone call now can save pie in your face (or the designer's face). I beleive the correct term would be called a "professional courtesy".......

Regardless of the review, every once in a while you could find a person who could agree to disagree --- That is what appeal boards/ supervisors were for. (BTW - 3 years at one municpality - and no appeals filed) The next job, three appeals in the first month -
 
Back
Top