1413 [DSA-Ss & DSA-Ss/Cc, OSHPD 1, 1R, 2, 4 & 5] Additional Requirements For… — 2025 California Building Code
California Building Code (Title 24, Part 2) · 2025 edition · updated 2026-09-25 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Building Code (Title 24, Part 2) § 1413 · Effective January 1, 2026 · Official source: Building Standards Commission
1413.1 General.¶
In no case shall veneer be considered as part of the backing in computing strength or deflection, nor shall it be consid- ered a part of the required thickness of the backing.
Veneer shall be anchored in a manner which will not allow relative movement between the veneer and the wall.
Anchored or adhered veneer shall not be used on overhead horizontal surfaces.
1413.2 Adhered veneer.¶
Units of tile, masonry, stone or terra cotta which exceed 5/8 inch (15.9 mm) in thickness shall be applied as for anchored veneer where used over exit ways or more than 20 feet (6.1 m) in height above adjacent ground elevation.
1413.2.1 Bond strength and tests. Irrespective of the mortar type, veneer type or design methodology used, adhered masonry veneer shall develop a bond shear strength to the backing of at least 50 psi (345 kPa) based on gross unit bonded area. The bond between adhered veneer units and backing shall be shear tested, in accordance with ASTM C1823, on a field-constructed mock-up using the specified unit, mortar and substrate.
Not less than two shear tests shall be performed for the adhered veneer between the units and the supporting element. At least one shear test shall be performed at each building for each 5,000 square feet (465 m [2] ) of wall area or fraction thereof.
1413.2.2 TMS 402, Section 13.3.2.2. Replace TMS 402, Section 13.3.2.2 (c) with the following: (c) The weight of adhered masonry veneer units shall not exceed 15 psf (73 kg/m [2] ).
14-24 2025 CALIFORNIA BUILDING CODE
CALIFORNIA BUILDING CODE – MATRIX ADOPTION TABLE
CHAPTER 15 – ROOF ASSEMBLIES AND ROOFTOP STRUCTURES
(Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)
| Adopting agency | BSC | BSC- CG |
SFM | HCD | DSA | OSHPD | BSCC | DPH | AGR | DWR | CEC | CA | SL | SLC | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adopting agency | BSC | BSC- CG |
SFM | 1 | 2 | 1/AC | AC | SS | SS/CC | 1 | 1R | 2 | 3 | 4 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Adopt entire chapter | X | X | ||||||||||||||||||||||
| Adopt entire chapter as amended (amended sections listed below) |
X | X | X | X | X | X | X | X | X | X | ||||||||||||||
| Adopt only those sections that are listed below |
X | |||||||||||||||||||||||
| Chapter / Section | ||||||||||||||||||||||||
| 1501 | X | |||||||||||||||||||||||
| 1502.1 | X | X | ||||||||||||||||||||||
| 1502.2 | X | X | ||||||||||||||||||||||
| 1503.3 – 1503.4 | X | |||||||||||||||||||||||
| 1505 – 1507 | X | |||||||||||||||||||||||
| 1507.3.10 | X | X | X | X | X | X | X | |||||||||||||||||
| 1507.7.8 | X | X | X | X | X | X | X | |||||||||||||||||
| 1509 – 1511 | X | |||||||||||||||||||||||
| 1511.9.6 | X | X | ||||||||||||||||||||||
| 1511.10– 1511.10.1 | X | X | X | X | X | X | X | X | X | X | ||||||||||||||
| 1512 | X | |||||||||||||||||||||||
| 1513 | X | X | X | X | X | X | X |
The state agency does not adopt sections identified by the following symbol:
The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
15-2 2025 CALIFORNIA BUILDING CODE
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