Timothy Callahan, a pioneering natural building designer and experienced hemp-lime builder, offers architects, builders, and eco-conscious homeowners a comprehensive guide to creating beautiful, energy-efficient, and environmentally friendly hemp-lime structures. Callahan's visionary and practical architectural details are the culmination of a portfolio of completed hemp-lime buildings across the United States. The book covers best practices for designing with hempcrete for - In situ (hand-packed) and spray applications - Lime Binder - Structural Requirements - Stud Placement - Windows - Doors - Wall bracing - Electrical and Plumbing Rough In - Roof and overhangs - Foundations - Application of Lime Plasters A download library of architectural details found in this book is available from www.hempbuildmag.com Includes Complete 2024 International Residential Code Appendix BL and Commentary "Hemp-lime (Hempcrete) Construction."