Section BK108 — FIRE RESISTANCE — 2025 California Residential Code (Title 24, Part 2.5)

BK108.1 Fire-resistance rating. ¶

BK108.1 Fire-resistance rating. Cob walls that comply with Table BK108.1 have a 2-hour fire-resistance rating. TABLE BK108.1—TWO-HOUR FIRE-RESISTANCE-RATED COB WALLSCol2Col3Col4Col5Col6 ------------------ ALLOWABLE SUPER-<brIMPOSED LOAD<br(plf)DENSITYa, d <br(pcf)MINIMUM COMPRES-<brSIVE STRENGTH PER<brSECTION BK106.6.1<br(psi)WALL-TYPE<brREINFORCEMENT<brPER TABLE<brBK105.3MINIMUM<brTHICKNESSc, e, f AT<brTOP OF WALL<br(inches)MINIMUM<brTHICKNESSc, e, f AT<brBOTTOM OF WALL<br(inches) 1,20010085E912 475≥ 50 pcf: less than<br40 inches from top of wall40bE or F812 475≥ 70 pcf: from 40 inches to

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

Ask AI about § BK108.1

BK108.2 Clearance to fireplaces and chimneys. ¶

BK108.2 Clearance to fireplaces and chimneys. Cob walls or other cob surfaces shall not require clearance to fireplaces and chimneys, except where clearance to noncombustibles is required by the manufacturer’s instructions.

Ask AI about § BK108.2