barbarand1
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Residential high-end condiminium. Working a reflected ceiling plan, and was alerted by a code review guy that this was an issue. Noone seems to know. Thank you.
Max. # of recessed lights allowed to penetrate a fire-ra
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ryan_618
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- Salt Lake City, Utah
Re: Max. # of recessed lights allowed to penetrate a fire-ra
You can put as many as you want because they are not a penetration because you are required to rate them, such as building a 5/8" type X gypsum board box around them. Also be mindful that the joints need to be taped or caulked with a fire caulk meeting the ASTM E119 standard.
[ September 05, 2003, 04:51 PM: Message edited by: ryan_618 ]
You can put as many as you want because they are not a penetration because you are required to rate them, such as building a 5/8" type X gypsum board box around them. Also be mindful that the joints need to be taped or caulked with a fire caulk meeting the ASTM E119 standard.
[ September 05, 2003, 04:51 PM: Message edited by: ryan_618 ]
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Re: Max. # of recessed lights allowed to penetrate a fire-ra
First off, welcome to this forum. You are fortunate to realize that this is an issue.
First off, you probably need IC Rated fixtures.
Secondly, something like "e.z. barrier" will maintain the 1-hour rating of the reflective ceiling.
e.z. barrier for recessed lights to maintain fire rating integrity in reflective ceilings
http://www.ezbarrier.net
[ This post was spell-checked in a jiffy by: ieSpell prior to submission. No mis-spelled words were found. As for my grammar, there is no automatic solution ]
First off, welcome to this forum. You are fortunate to realize that this is an issue.
First off, you probably need IC Rated fixtures.
Secondly, something like "e.z. barrier" will maintain the 1-hour rating of the reflective ceiling.
e.z. barrier for recessed lights to maintain fire rating integrity in reflective ceilings
http://www.ezbarrier.net
[ This post was spell-checked in a jiffy by: ieSpell prior to submission. No mis-spelled words were found. As for my grammar, there is no automatic solution ]
Re: Max. # of recessed lights allowed to penetrate a fire-ra
You need to check with the local building code to see what construction is allowed and not-allowed. The International Building Code, chapter 7, states "Membrane penetratioins by steel, ferrous or copper conduits, electrical outlet boxes, pipes, tubes, vents, concrete, or masonry penetrating items where the annular space is protected in accordance with Section 711.4.1 or is protected to prevent the free passage of flame and the products of combustion. Such penetratioins shall not exceed an aggregate area of 100 square inches in any 100 sguare fee of ceiling area in assemblies tested without penetrations."
I'm sure other codes have similar restrictions.
You need to check with the local building code to see what construction is allowed and not-allowed. The International Building Code, chapter 7, states "Membrane penetratioins by steel, ferrous or copper conduits, electrical outlet boxes, pipes, tubes, vents, concrete, or masonry penetrating items where the annular space is protected in accordance with Section 711.4.1 or is protected to prevent the free passage of flame and the products of combustion. Such penetratioins shall not exceed an aggregate area of 100 square inches in any 100 sguare fee of ceiling area in assemblies tested without penetrations."
I'm sure other codes have similar restrictions.
ryan_618
Senior Member
- Location
- Salt Lake City, Utah
Re: Max. # of recessed lights allowed to penetrate a fire-ra
Hello Jerry and thanks for your post. I don't want to get into this here because this is an IBC issue, but if you build a box around your can (which is required by code), where is the membrane penetration? You still have 5/8X followed by air space and another layer of 5/8X. I have seen this done many many times and have never heard of it being an issue. Please feel free to send me a private message if you like, or we can bring it up at the bulletin board at www.iccsafe.org Thanks and look foward to hearing from you
Hello Jerry and thanks for your post. I don't want to get into this here because this is an IBC issue, but if you build a box around your can (which is required by code), where is the membrane penetration? You still have 5/8X followed by air space and another layer of 5/8X. I have seen this done many many times and have never heard of it being an issue. Please feel free to send me a private message if you like, or we can bring it up at the bulletin board at www.iccsafe.org Thanks and look foward to hearing from you
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