tag:blogger.com,1999:blog-2182743756361189626.post1713079973413018618..comments2009-05-19T10:44:52.458-04:00joelmckellarhttp://www.blogger.com/profile/15550241954337769327noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-2182743756361189626.post-52325109996522107482009-05-19T10:44:00.000-04:002009-05-19T10:44:00.000-04:00What about acrylic based firestopping sealants? Anyone have any experience submitting that? <br /><br />And don't worry Steve, it has a UL testing report.jbeesonhttp://www.blogger.com/profile/13444769352136929705noreply@blogger.comtag:blogger.com,1999:blog-2182743756361189626.post-49523368961578457102008-08-21T20:13:00.000-04:002008-08-21T20:13:00.000-04:00We used Architectural Sealant for fire stop on our project (LEED-CI v.2.0) and it was accepted at review, and we were certified. (Silver)Lorenoreply@blogger.comtag:blogger.com,1999:blog-2182743756361189626.post-25217458363090181392008-08-13T20:01:00.000-04:002008-08-13T20:01:00.000-04:00Firstly kudos to you for this great site<BR/><BR/>I'm had much experience with firestopping<BR/>and can tell you after many projects were firestop seals and methods must be used, that it is imperative to insure that details include UL tested materials wherever possible. <BR/><BR/>All this to say this a complex issue. Since prevailing NFPA, municipal by-laws, and Building codes supersede and have precedence over any LEED requirement, BE CAREFUL ABOUT RECOMMENDING PRODUCTS unless you can back it up with applicable UL tested details and products. The Green product manufacturers must provide you with appropriate specs.Stevedalani.comnoreply@blogger.comtag:blogger.com,1999:blog-2182743756361189626.post-74126016887582288972008-08-07T12:21:00.000-04:002008-08-07T12:21:00.000-04:00Found it, in the Potential Technologies &amp; Strategies section, it specifically mentions firestopping.<BR/><BR/>Also in the Requirements section it is encompasses this by saying &quot;All adhesives and sealants used on the interior of the building (defined as inside the weatherproofing system and applied on-site)&quot; and goes on to say 250 g/L &quot;less water&quot; - what does that mean exactly, take the water out of the formula before you measure it&#39;s volume in the calculation? Wonder if any manufacturers publish data that way! By the way, there is a higher limit of 775 g/L for primers on porous substrates, and this seems to apply to firestopping per MASTERSPEC. Nonporous primers have the same 250 g/L limit as the firestopping though.<BR/><BR/>Does anyone know if waterproofing also counts in this? It <B>IS</B> the weatherproofing system. I have been assuming it does count. I know sealants used in roofing are specifically mentioned somewhere as having this requirement.Chris Grimmhttp://www.blogger.com/profile/13640559749147730920noreply@blogger.comtag:blogger.com,1999:blog-2182743756361189626.post-47624460127446040792008-08-07T08:59:00.000-04:002008-08-07T08:59:00.000-04:00Isn&#39;t there some mention of firestopping in the Ref Guide under EQ 4.1? I sort of remember hunting and finding it there, kind of fine print. I don&#39;t have the Ref Guide handy at the moment or I&#39;d try to find it again. Since that time, I have been spec&#39;ing it &lt;=250g/L as architectural sealant, so I must have come to the same conclusion as the PM you mentioned.Chris Grimmhttp://www.blogger.com/profile/13640559749147730920noreply@blogger.com