Insulation

Insulation material consisting of a container formed of flexible material and of an insulating batt configuration, a plurality of layers of newspaper sheets positioned in said container, said newspaper sheets treated with a liquid fire resistant preservative, such as a solution of water glass, namely 40% Na.sub.2 Si.sub.3 O.sub.7 and 60% H.sub.2 O and dried before they are positioned in said container so as to have a folded stiffened characteristic, said plurality of layers of newspaper sheets loosely filling the container and wherein a plurality of air spaces are formed between the sheets of the newspaper and the layers thereof.