In March of 2023, Pennsylvania-based Americhanvre, a construction firm specializing in hemp building processes, received formal results from their ASTM C-518 thermal resistance test for their “EREASY” hemp-lime spray process. The test confirmed previous European assumptions of R2.2/inch, which exceeds R values for many common building materials like brick or wood.
Founded by Cameron and Melissa McIntosh in 2018, Americhanvre has been a driving stakeholder for the hemp building segment. Hempcrete was approved for the US Residential Building Code in 2022.
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