Guides
Fiber cement by the numbers: fire tests, clearances, and dust rules.
- How Fiber Cement Siding Handles MoistureWhy fiber cement is formulated differently for a cold, wet climate than a hot, humid one, and what its moisture resistance actually depends on.
- Fire Resistance: Noncombustible Ratings and California's Wildfire RulesFiber cement's noncombustible classification, how California's wildfire code treats exterior wall coverings, and what that means outside California.
- Installation Clearances That Keep Fiber Cement Siding PerformingThe exact clearance numbers a correct fiber cement installation follows at grade, roof, and flashing lines, sourced from the manufacturer's own instructions.
- Silica Dust Safety: OSHA's Rule for Cutting Fiber CementOSHA's specific rule for cutting fiber cement board, the difference between outdoor and indoor requirements, and what to ask a crew about dust control.
- Painting and Maintenance: Recoat Schedules and What Voids WarrantiesWhat has to happen within days of installing primed fiber cement, what a factory finish warranty actually covers, and how to keep both intact.
- What Fiber Cement Siding Costs InstalledFiber cement installed cost broken out by plank, panel, and shingle profile, plus the published resale numbers behind its higher sticker price.