Most insulated structures that use concrete block, brick, adobe, stone, veneers or some blend thereof aspect inside insulation in the shape of fiberglass batts in between wooden wall studs or in the form of rigid insulation boards lined with plaster or drywall. Right now, masonry remains a cornerstone of architecture. https://digitalasset.blob.core.windows.net/digitalassets/wsthillsmasonry/Hardscape-Contractors.html