Environmental pollution and increased greenhouse gas (GHG) emissions due to reliance on fossil fuels are significant causes of global warming. Transitioning to renewable resources such as biomass offers a solution to reduce GHG emissions. Biomass is a renewable, biodegradable resource derived from agricultural residues and wastes and is an environmentally friendly alternative in manufacturing. Biomass-based materials have unique properties, including excellent thermal insulation and low density, which make them valuable in building applications. However, traditional methods of biomass utilization, such as burning, release greenhouse gases and consume a lot of energy. In this work, we utilize additive manufacturing (AM) to produce biomass-based insulation panels directly from straw fibers, aiming to transform agricultural waste into sustainable building materials. Despite these benefits, AM faces challenges in scalability and efficiency, especially for large-scale applications. This study addresses these challenges by developing a roll-to-roll printing system with an optimized nozzle design to increase throughput. Through nozzle transformation (transitioning from serial deposition to parallel deposition using dual elongated nozzles), we achieve high efficiency manufacturing. Simulations and experimental testing validated our design, resulting in a high throughput AM solution capable of producing environmentally friendly insulation panels. This approach demonstrates a sustainable pathway to transform agricultural waste into valuable environmentally friendly building materials.