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File:How joint3.jpg

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Original file(4,677 × 3,125 pixels, file size: 1.32 MB, MIME type: image/jpeg)

Summary

Description "HOW" (Head Of Wall) Building Joint: Concrete Masonry Unit Wall stopping short of the underside of a concrete slab above. The joint is penetrated both by electrical conduit (EMT = Electrical Metallic Tubing) and a steel pipe. Building joints are routinely penetrated by mechanical and electrical penetrants. For that reason, joint firestops that are also qualified to be used in mechanical, electrical and structural through-penetration firestop systems provide the best evidence of building code compliance because they have demonstrated the ability to cope with the heat that travels through to the unexposed side during an accidental or test fire exposure - without spontaneous ignition or degradation that would fail the hose-stream test or permit smoke migration.
Date
Source Own work
Author Achim Hering

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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
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24 April 2007

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Date/TimeThumbnailDimensionsUserComment
current03:02, 25 April 2007Thumbnail for version as of 03:02, 25 April 20074,677 × 3,125 (1.32 MB)Achim Hering{{Information |Description="HOW" (Head Of Wall) Building Joint: Concrete Masonry Unit Wall stopping short of the underside of a concrete slab above. The joint is penetrated both by electrical conduit (EMT = Electrical Metallic Tubing) and a steel pipe
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