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The author of the article addresses the issues of obtaining insulation products based on flax shives. The article suggests a systematization method for the flax shives based materials, which takes into account the principle of obtaining construction materials based on flax processing waste on various types of binders. It is based on the literature data and the existing research. The possibility of using flax shives as a large structure-forming aggregate of concrete is determined along with the composition and properties of organic aggregate - flax shives. The article presents the optimal ratios selection of flax and binding bonfires in the preparation of granular materials. The characteristics of granulated aggregates on the basis of flax shives are given. The manufacture of cob granules was carried out in two technological ways: on a complex binder and on mineral binders with “dusting” with portland cement. The the method involving the coating of granules with a cement shell was used to produce a granulated material with higher rates of adhesion to the hardened stone of mineral binders in the concrete composition. The technological parameters of the granulation process are determined for two technological methods.