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File:Puf canadian paper mill.jpg

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Description Polyurethane foam used illegally in a Canadian pulp and paper mill, in a cable tray through-penetration in a wall surrounding a service room, which is required to have a fire-resistance rating. Instead of this, there should be a proper firestop, where the installed configuration is bounded by an appropriate certification listing. An example would be a firestop mortar. The rating of this wall was ZERO at the time this picture was taken, resulting in a code violation.
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Author Achim Hering

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I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
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current00:18, 27 November 2007Thumbnail for version as of 00:18, 27 November 20074,728 × 3,168 (1.42 MB)Achim Hering (talk | contribs){{Information |Description=Polyurethane foam used illegally in a Canadian pulp and paper mill, in a cable tray through-penetration in a wall surroun ding a service room, which is required to have a fire-resistance rating. Instead of this, t

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