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Joined: Sep 2006
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Can anyone tell me what the code is for painting a backerboard with fire retardant paint or using flame retardant treated wood? Is this a good practice or a code? If you have a reference that would be great. If it is code where do I find the paint or flame retardant wood?
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Joined: May 2007
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Moderator-1A2, Cabling
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Moderator-1A2, Cabling
Joined: May 2007
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Some Jurisdictions require it. While not a code, the Ansi/EIA/TIA Building Telecom Wiring Standard states (when describing a typical Telecom Closet) :
569-A 7.2.4.1
"A minimum of two walls should be covered with rigidly fixed 3/4" plywood.....Plywood should be either fire rated or covered with two coats of fire retardant paint".
Please note that this is a quote fom the 1999 edition of the EIA/TIA standard. I can't speak for the more recent ones, but I'm sure that, if anything, they've only gotten stricter.
Sam
"Where are we going and why are we in this hand basket?"
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RIP Moderator-Nisuko-Tie, General
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RIP Moderator-Nisuko-Tie, General
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Skip
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Serving SW and West central Fl since 1984
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Joined: Aug 2005
Posts: 631
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I've heard some locales require that the plywood be sheeted with drywall. But we've never been dinged for not painting the plywood.
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Joined: Feb 2005
Posts: 12,354 Likes: 4
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The backboard should always be installed over the sheetrock. The sheetrock provides fire resistance.
Besides, I really can't see doing it before the sheetrock. It would be a big headache for the rockers to go around it unless you are a carpenter and made provisions for it with the framing.
-Hal
CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
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Joined: May 2007
Posts: 5,059 Likes: 6
Moderator-1A2, Cabling
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Moderator-1A2, Cabling
Joined: May 2007
Posts: 5,059 Likes: 6 |
As Hal said, it has always been my experience that the plywood goes OVER the sheetrock. I don't think the TIA is recommending anything else. I'll take a closer look at the spec, but I don't think I'll see anything different.
Sam
"Where are we going and why are we in this hand basket?"
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Joined: Aug 2007
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Here in our hospital environment we are required to apply two coats and place a sticker on the backboard from the manufacture of the paint. It gives the type of paint (FIRE rated).
We can also use backboards that have a Formica covering all the way around the plywood. They just approved this within the last couple of years.
Mike Jones
"A people that values its privileges above its principles soon loses both."
- Dwight D. Eisenhower (1890-1969), Inaugural Address, January 20, 1953
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Joined: Nov 2007
Posts: 2
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In some areas the inspector wants to see the 'fire-rated' stencil that comes on the plywood from where ever you get it from,so we normally leave it unpainted.(the stencil that is)
On the paint,you can leave the label or a copy of it (like a snapshot) for the inspector too.
Good Luck,
Bob has been in the business for many years and is currently the SR PM for a cabling/phone installation company in Los Angeles
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Joined: Jun 2007
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the inspector told me two coats of latex paint is ok for "fire resistance" since wood only holds up for 1 hour rating when painted.
it's all tip and ring
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