I
should say a few words about CASBA’s (California Straw Building Association) book Straw Bale Building Details: An Illustrated Guide for Design and Construction. None of this would be obvious until you were reviewing a copy of the book.
The content of the book was drawn from the collective
experience of over sixty contributors who have worked on hundreds, if not thousands of straw bale buildings over the past twenty plus years. We all volunteered our time and expertise to this project. Bob and I are among the twenty principal contributors who played a somewhat larger role in writing chapters, creating details and illustrations, and organizing and editing the project. CASBA is a non-profit organization devoted to furthering the practice of straw building by facilitating the exchange of current information and practical experience, promoting and conducting research, and making that body of knowledge available to working professionals and the public at large.
All proceeds earned from book sales are earmarked to support research and development of straw as a building material.
As the book’s managing editor I believe I speak for Bob and the other contributors in saying that we made this effort because it’s important to build straw bale structures well. Straw is non-toxic and easy to work with. The plastered straw bale walls are beautiful and inspiring. Thoughtfully designed and carefully built straw bale structures can be super
energy efficient, requiring much less energy inputs to heat and cool. In most of the world grain crops are abundant, so straw can an annually renewable building material. Straw has the lowest embodied energy of any building material--comparatively little fossil fuel goes into planting, growing, harvesting, and transporting straw to a building site. Straw is about 40%
carbon, so carefully stuffing straw into a building prevents it from decomposing, which would allow the carbon to bond with oxygen and become atmospheric carbon dioxide. If we can use more annually renewable plant-based materials like straw in buildings it has the potential to become a significant carbon sink, so if you think humans have had something to do with increasing levels of green house gasses, building well with straw is something we can do to mitigate.
Talk about stacking functions!