Marc Posted October 11, 2012 Report Share Posted October 11, 2012 Click to Enlarge 64.13 KB I've never seen it before. 1937 home. It isn't fibrous like a wood or mineral based insulation would be. Collapses into a very fine powder when you squeeze it slightly between your fingers. Light tan color. Marc Link to comment Share on other sites More sharing options...
John Kogel Posted October 11, 2012 Report Share Posted October 11, 2012 I believe it is an older variety of cellulose. Based on the color, mostly. Link to comment Share on other sites More sharing options...
Bill Kibbel Posted October 11, 2012 Report Share Posted October 11, 2012 Old cellulose. It's the same stuff used to make Homasote. Link to comment Share on other sites More sharing options...
Marc Posted October 11, 2012 Author Report Share Posted October 11, 2012 Thanks fellas. Marc Link to comment Share on other sites More sharing options...
Sarah Wold Posted November 23, 2012 Report Share Posted November 23, 2012 It is dry cellulose which was used in retrofitting old homes. The cellulose was blowed into the holes on top of the walls. Link to comment Share on other sites More sharing options...
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