BTRboard™ OSB and BTRboard™ Fire X are high-performance continuous insulated sheathing panels that combine structural durability, exceptional thermal performance, and enhanced fire and moisture resistance—all with a lower embodied carbon footprint than conventional foam products. Each panel features a proprietary, Class A fire-rated, medium-density polyurethane foam core that provides up to R-8.35 at just 1 5/8″ thickness, one of the highest R-values per inch available. Unlike EPS and XPS, which can ignite and accelerate fire spread, BTRboard™’s core is engineered to resist ignition and slow flame progression, improving overall wall safety. BTRboard™ OSB integrates continuous insulation with structural sheathing, streamlining installation and reducing thermal bridging without furring or additional weather barriers. BTRboard™ Fire X, laminated to Type X fiberglass-faced gypsum, adds a CAN/ULC S101 and S134 45-minute fire resistance rating, making it ideal for zero-lot-line conditions, and code-mandated fire separations. Both products are mold- and water-resistant, vapor-permeable, and designed to create a more durable, comfortable, and healthy indoor environment. With its factory-laminated design and reduced labor requirements, BTRboard™ also lowers construction timelines and costs—offering builders and developers a sustainable, energy-efficient envelope solution that performs far beyond code minimums.