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Brian
From:
Noe, Brian
Sent: Thursday, April 27, 2006 2:50 PM
To: Krahn, Nicole R.
Subject: FW: Bethany Estates 149 W 24th Ave Plan # 53-28-0306
FYI
-----Original Message-----
From: Noe, Brian
Sent: Thursday, April 27, 2006 8:34 AM
To: 'Chet Wesenberg'
Subject: RE: Bethany Estates 149 W 24th Ave Plan # 53-28-0306
Based on the code in effect at the time ( INO 51.049 (1) ) that original building construction took place, it would have been acceptable
to solidly fill the opening around the non-combustible penetrating with material of fire-resistive rating equal to the required rating of
the assembly penetrated. (you have described the opening as being filled with mineral wool! fire safeing tightly packed around the
flue, which was typical for that time period)
While current code only recognizes listed fire stop systems, since it was proven that former practices did not withstand testing, the
original installation complied with the code at the time it was installed, there-for it is permitted to remain in place, as it was originally
installed. The code is the minimum that is required, you as the designer of record are responsible to determine if greater precaution
is needed to provide a safe building. So, you may determine that while the code previously allowed the installation, it has since been
demonstrated that that system is ineffective in fire testing, so you may determine that additional measures should be taken to provide
the protection that would meet current standards.
In any event the required tenant space separation is required to be provided, so if only the outer surface of the chase has been
rocked you need to maintain the required fire separation between units. Additionally if the material around the penetrating item in the
chase is removed and ! or replaced it will need to be installed in compliance with today's standards.
If you have further questions, or you wish to discuss this further feel free to contact me.
.Brian Noe
City of Oshkosh
Building Systems Consultant
(920) 236-5051
-----Original Message-----
From: Chet Wesenberg [mailto:cwarch@new.rr.com]
Sent: Wednesday, April 19, 2006 7:34 AM
To: bnoe@cLoshkosh.wi.us
Subject: Bethany Estates
Brian:
1 have researched the issue regarding the existing HV AC chase at the 5E corner of the unit. It is my interpretation that the
previously approved plan did not identify the chase with a required fire rating and that the previous code did not require a fire-
rated chase.
We plan to modify the limits of the interior alteration so as to not include the chase. We will construct a 1 hr wall around the
perimeter of the interior alteration.
Please call or email to discuss this plan and with any questions you may have.
5/1/2006
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Chet Wesenberg, Architect
3162 Hayward Avenue
Oshkosh, WI 54904
tele: 920-230-4900
fax: 920-230-4910
cell: 920-410-6200
5/1/2006