A spray-on inorganic (e.g. fiberglass) insulation method and product with a low density and high R-value are disclosed. Loose-fill fiberglass is coated with a non-foaming liquid and thereafter blown or sprayed into a cavity such as a vertically extending open stud-defined wall cavity. After sticking in the cavity, the insulation is rolled to further pack it into the cavity and thereafter allowed to cure.

 
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