Low cost, fire-proof, high longevity, and a negative carbon footprint are only a few of the numerous amazing benefits of hempcrete. According to the U.S. Green Building Council, buildings account for 38% of the CO2 emission in America. One huge benefit of using hempcrete is that the hemp will absorb CO2 and release oxygen during its growth, as well as absorbing more CO2 due to the limestone and slowly petrifying. Over decades, its widespread use could have a fairly significant impact.
How can a house made of mud last 500 years? The short answer is, the combination of clay, sand and straw – known as cob – is extremely strong and durable once it dries, and can withstand fire and severe weather as well as practically any other material. This ancient building technique is among the easiest and least expensive ways to build your own sustainable, healthy green home.