Is hemp insulation better than spray foam insulation?

Hemp insulation is, for many reasons, better than spray foam insulation. First of all, hemp insulates better than many other materials. The more the material restricts the flow of heat, the higher its R-value. Hemp easily restricts the flow of heat within your walls and building. Secondly, hemp absorbs moisture, which makes hemp a great material to use if you want to prevent the growth of mold. People who live in a highly humid climate may want to use hemp as an insulator for that reason.