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What is this old insulation?
This fills some wall cavities of my mid-1800s house. It is the less dense and more fragile than any foam I’ve ever seen. It crumbles into fine dust if you lightly squeeze it. submitted by /u/benj4786 [link] [comments]
| | This fills some wall cavities of my mid-1800s house. It is the less dense and more fragile than any foam I’ve ever seen. It crumbles into fine dust if you lightly squeeze it. [link] [comments] |
![[link]](https://i.redd.it/bazpy335xs3f1.jpeg){kind=link}