p><strong>Hemp insulation is an excellent and very sustainable alternative to many types of more toxic building materials and insulations. But as for the hemp blocks, that would not be our preferred method.</strong> We’ve seen and looked into the blocks you are talking about, and while we like seeing innovative building products emerge, especially with natural materials like hemp, we would sooner use hemp batts. While the insulation in the blocks is natural, each block has a plastic form inside it which makes up the structure itself. </p> <p>And as for the carbon footprint, they are pretty high in greenhouse gas emissions during manufacturing. Using hemp blocks essentially means you are building a plastic framed house insulated with a hemp / lime mixture, so over all it is not as natural or ‘eco-friendly’ a product as it looks at first glance. In our opinion about this product, we think you would get a more sustainable and probably more affordable wall assembly using hemp batt insulation in a standard wood framed wall. Wood is a much more sustainable building product, not to mention that a <a href="/guides/3342/hemp-insulation/" target="_blank">wood frame wall with hemp batt insulation</a> means when the day comes where a house needs to be decommissioned, all the components are reusable or recyclable, where the hemp block will be of limited value as a block with a plastic frame inside. it. </p