Section 2510 — LATHING AND FURRING FOR CEMENT PLASTER (STUCCO) — 2025 California Building Code (Title 24, Part 2)

2510.1 General. ¶

2510.1 General. Exterior and interior cement plaster and lathing shall be done with the appropriate materials listed in Table 2507.2 and Chapter 35.

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2510.2 Weather protection. ¶

2510.2 Weather protection. Materials shall be stored in such a manner as to protect them from the weather.

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2510.3 Installation. ¶

2510.3 Installation. Installation of these materials shall be in compliance with ASTM C926 and ASTM C1063.

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2510.4 Corrosion resistance. ¶

2510.4 Corrosion resistance. Metal lath and lath attachments shall be of corrosion-resistant material.

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2510.5 Backing. ¶

2510.5 Backing. Backing or a lath shall provide sufficient rigidity to permit plaster applications. on Jul 18, 2025 11:14 AM (CDT) THEREUNDER. GYPSUM PANEL PRODUCTS AND PLASTER 2510.5.1 Support of lath. Where lath on vertical surfaces extends between rafters or other similar projecting members, solid backing shall be installed to provide support for lath and attachments. 2510.5.2 Use of gypsum backing board. Gypsum backing for cement plaster shall be in accordance with Section 2510.5.2.1 or 2510.5.2.2. 2510.5.2.1 Gypsum board as a backing board. Gypsum lath or gypsum wallboard shall not be…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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2510.7 Preparation of masonry and concrete. ¶

2510.7 Preparation of masonry and concrete. Surfaces shall be clean, free from efflorescence, sufficiently damp and rough for proper bond. If the surface is insufficiently rough, approved bonding agents or a Portland cement dash bond coat mixed in proportions of not more than two parts volume of sand to one part volume of Portland cement or plastic cement shall be applied. The dash bond coat shall be left undisturbed and shall be moist cured not less than 24 hours.

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development

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