A composition and prefabricated
structural insulated panel (SIP) for constructing residential, industrial, and commercial buildings are disclosed. The panel includes a framework formed by
metal studs and / or wooden studs defining a plurality of stud bays, and a sustainable insulation composition disposed within the stud bays and configured to set and dry. The composition comprises renewable, non-toxic materials, including hemp-based components, bamboo fibers, and a
lime-based binder, forming a continuous thermal and fire-resistant barrier with minimal thermal bridging. The resulting panels provide enhanced
thermal insulation,
structural load-bearing capability, and resistance to fire, mold,
mildew, and pests, while supporting rapid
prefabrication and on-site
assembly. The panels may further include organic cladding
layers and provisions for mechanical, electrical, and plumbing services. The disclosed
system offers a cost-effective, environmentally sustainable, and labor-efficient construction solution compatible with existing building standards.