Hempsteads

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."

Timothy Callahan is a former naval architect and general contractor. He is now in his fifth decade of design-build work, with extensive experience in timber framing and natural residential construction. Tim was a part of the team that developed the 2024 International Residential Code Appendix BL "Hemp-Lime Construction" for hemplime's first appearance in US building codes. Since 1995, his work has been focused on the creation of healthy and energy-efficient homes. In an effort to develop a model for a low-carbon and non-toxic living environment, Tim led the design team for the Nauhaus Prototype in 2009; this was the first of 10 permitted hemp-lime projects which he has designed, ranging in size from 1200-9600 square feet. In 2005, Tim co-authored the book with Clarke Snell, "Building Green: A complete Guide to Alternative Building Methods." Tim lives in Asheville, NC.