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Orange County Architectural Renovations Smith Sinnett / 2023036 <br />Hillsborough, NC Orange County Asset Management Services <br />PENETRATION FIRESTOPPING 07 84 13 - 4 <br />2. Clean opening substrates and penetrating items to produce clean, sound surfaces capable of developing optimum <br />bond with through-penetration firestop systems. Remove loose particles remaining from cleaning operation. <br />3. Remove laitance and form-release agents from concrete. <br />3.3 THROUGH-PENETRATION FIRESTOP SYSTEM INSTALLATION <br />A. General: Install through-penetration firestop systems to comply with Part 1 "Performance Requirements" Article and with <br />firestop system manufacturer’s written installation instructions and published drawings for products and applications <br />indicated. <br />B. Install forming/damming/backing materials and other accessories of types required to support fill materials during their <br />application and in the position needed to produce cross-sectional shapes and depths required to achieve fire ratings <br />indicated. <br />1. After installing fill materials and allowing them to fully cure, remove combustible forming materials and other <br />accessories not indicated as permanent components of firestop systems. <br />C. Install fill materials for firestop systems by proven techniques to produce the following results: <br />1. Fill voids and cavities formed by openings, forming materials, accessories, and penetrating items as required to <br />achieve fire-resistance ratings indicated. <br />2. Apply materials so they contact and adhere to substrates formed by openings and penetrating items. <br />3. For fill materials that will remain exposed after completing Work, finish to produce smooth, uniform surfaces that <br />are flush with adjoining finishes. <br />3.4 FIELD QUALITY CONTROL <br />A. Where deficiencies are found, repair or replace through-penetration firestop systems so they comply with requirements. <br />B. Proceed with enclosing through-penetration firestop systems with other construction only after inspection reports are issued <br />and firestop installations comply with requirements. <br />3.5 CLEANING AND PROTECTING <br />A. Clean off excess fill materials adjacent to openings as Work progresses by methods and with cleaning materials that are <br />approved in writing by through-penetration firestop system manufacturers and that do not damage materials in which <br />openings occur. <br />B. Provide final protection and maintain conditions during and after installation that ensure that through-penetration firestop <br />systems are without damage or deterioration at time of Substantial Completion. If, despite such protection, damage or <br />deterioration occurs, cut out and remove damaged or deteriorated through-penetration firestop systems immediately and <br />install new materials to produce systems complying with specified requirements. <br />3.6 THROUGH-PENETRATION FIRESTOP SYSTEM SCHEDULE <br />A. Where UL-classified systems are indicated, they refer to alpha-alpha-numeric designations listed in UL’s "Fire Resistance <br />Directory" under product Category XHEZ. <br />B. Where OPL-classified systems are indicated, they refer to alpha-numeric design numbers in OPL’s "Directory of Listed <br />Building Products, Materials, & Assemblies." <br />C. Where ITS-listed systems are indicated, they refer to design numbers listed in ITS’s "Directory of Listed Products," <br />"Firestop Systems" Section. <br />D. Firestop Systems: Indicated on the drawings. <br />END OF SECTION 07 84 13 <br />Docusign Envelope ID: 52FACC74-DA96-491B-B0B8-04AC3961737D