Built for the realities of the Wildland–Urban Interface, OptimBoard™ delivers verified fire performance, design flexibility, and peace of mind for both builders and homeowners.
Why OptimBoard™:
Exterior Fire-Resistant Sheathing – Tested and rated for use in exterior wall assemblies where code officials and insurers demand Class A performance.
Non-Combustible Composition – Mineral-bonded wood fibers meet EU A2-s1,d0 and US Class A (0/0) standards for flame, smoke, and heat resistance.
No-VOC & Breathable – Free of synthetic resins or off-gassing adhesives; supports healthy interiors and stable façades.
Improves Insurability – Reduces wildfire exposure risk and strengthens compliance for properties in high-risk or WUI zones.
Durable & Versatile – Functions as sheathing, façade substrate, or exposed finish for ceilings, soffits, and rainscreens.
Low Maintenance, Long Life – Resistant to moisture, impact, and temperature swings; performs reliably in demanding climates.
OptimBoard™ helps builders deliver resilient, insurable structures—and gives homeowners the lasting confidence that their walls are built to withstand what nature brings.

OptimBoard™ drops seamlessly into standard framing routines—cut it, fasten it, move on. No special tools, no learning curve, no slowdowns. The result is a fire-resistant sheathing that installs fast and endures for decades.

Every sheet of OptimBoard™ adds quiet assurance to your home’s exterior. Designed to resist fire, impact, and time itself, it forms a protective skin that lets you rest easy—knowing your walls are built to defend what matters most.