Abstract: A fibrous insulation blanket manufactured to be installed between standard, sub-standard, and super-standard framing within those wall, ceiling, and roof cavities between framing members in residential and commercial buildings. Said fibrous insulation blanket includes a structure of flexible corrugated/ribbed material serving as a structural thermal break comprised of a non-heat/cold transmitting material, which provides additional insulating characteristics beyond the capabilities of the fibrous insulating material for increased protection from heat loss and cold infiltration.