Ul duct penetration

Likewise, protecting the penetrations and openings at the horizontal assembly with a through-penetration firestop system provides another method of protecting against floor-to-floor flame passage. In the chase wall example, the interior of the wall cavity containing the penetrants is only protected by one half of the 2 hour wall construction. Should there be a fire on the room side of the shaft enclosure, the intent is the shaft enclosure is to provide 2 hours of protection to the interior of the shaft enclosure, and visa versa, thereby providing 2 hours of protection from floor-to-floor flame passage. To provide a better user experience, our site uses cookies. Firestop systems can effectively restore the hourly rating of fire-resistive assemblies that have been breached when electrical, plumbing or mechanical items are installed. For fire-resistance rated horizontal assemblies, this protection is generally provided in one of two ways. The IBC requires the shaft enclosure to have a fire-resistance rating of not less than 2 hours where connecting four stories of more, and not less than 1 hour when connecting less than four stories.
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714.3.1.2 Through-Penetration Firestop System

Since the primary intent of a chase wall is to conceal these items, the wall may be either fire-resistance rated or not, depending on the application. Section of the IBC requires the horizontal elements of the shaft enclosures around these items to be constructed as horizontal assemblies. Upload File pdf, doc, docx. The firestop system is to consist of a fill void cavity material sealant, putty or mortar , the annular space must be maintained on both sides of the assembly and all other specific requirements of the UL system must be met. To provide a better user experience, our site uses cookies. Continuing to use this site means that you consent to us placing cookies. Let our firestop experts assist by reviewing your firestop specifications and making appropriate recommendations.
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Firestops and Joints | Industries | UL

UL Certificate of Conformance. Continuing to use this site means that you consent to us placing cookies. This is because it is generally not practical to scaffold within the shaft enclosure to work on the wall from both sides. In addition, the shaft enclosure must have a rating not less than the floor assembly penetrated, but need not exceed 2 hours. Tests using horizontal and vertical furnaces and multistory equipment ensure that buildings and their installed mechanical systems meet and maintain the hourly rating required for fire-resistive floor and wall assemblies. Detail sheets are documents grouped together with the most commonly used systems in five categories. For more information on protecting penetrations and openings in horizontal assemblies using shaft enclosures and through-penetration firestop sytems, please contact Rich Walke in Northbrook, Ill.
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Detail sheets are documents grouped together with the most commonly used systems in five categories. Tests using horizontal and vertical furnaces and multistory equipment ensure that buildings and their installed mechanical systems meet and maintain the hourly rating required for fire-resistive floor and wall assemblies. Once within an enclosure, the electrical, plumbing or mechanical items often transition between vertical and horizontal runs. Register Login Logout Account. Continuing to use this site means that you consent to us placing cookies. For fire-resistance rated horizontal assemblies, this protection is generally provided in one of two ways. Should there be a fire on the room side of the shaft enclosure, the intent is the shaft enclosure is to provide 2 hours of protection to the interior of the shaft enclosure, and visa versa, thereby providing 2 hours of protection from floor-to-floor flame passage.
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