When fiber cement boards are used in external applications, fixing selection becomes just as critical as the board itself. Even the highest-quality fiber cement board can fail prematurely if the wrong fasteners are used — particularly in aggressive outdoor environments.
Fire resistance in building assemblies is never achieved by a single material alone. While fiber cement boards are widely specified for their A1 non-combustible performance, the fixings used to install them play a critical role in maintaining fire integrity.
Fiber cement boards are widely specified for façades, interior linings, and high-performance building envelopes due to their durability, fire resistance, and dimensional stability. However, one of the most common installation questions remains:
Fiber cement boards are widely used in façades, exterior walls, soffits, and interior linings because of their non-combustibility, durability, and dimensional stability. However, even the best fiber cement board can fail prematurely if edge distances and fixing patterns are not applied correctly.
Cracking, edge breakage, screw pull-out, and surf
Fire-rated wall assemblies are a fundamental part of modern building safety. They are not just about meeting minimum fire regulations; they are about containing fire, protecting occupants, preserving structural integrity, and ensuring regulatory approval across the building lifecycle.
Fiber cement boards are widely used in fire-rated wall assemblies because they offer non-combustibility, dimensional stability, and predictable performance.