4 ms·

The North Beach branch of the San Francisco Public Library actually uses denim as insulating material within their walls. http://sfpublicworks.org/project/nort

• jxramos 9y ago
  "...and 11,350 square feet of insulation made from recycled denim, equating to approximately 4,500 pairs of jeans." That's a lot of jeans!
• cjensen 9y ago
  It's kinda important to build with less flamable materials whenever possible.
  • jrowley 9y ago
    I imagine it was sprayed with a flame retardant?
  • astura 9y ago
    Fabrics used for insulation are treated with flame retardant.
    • rrauenza 9y ago
      People also insulate with cellulose -- ground up newspaper. It is treated with boron to make it flame retardant.
  • jxramos 9y ago
    I remember this dude putting a bunch of materials to the test with a direct blowtorch flame. https://www.youtube.com/watch?v=8NC79e0oztM https://www.youtube.com/watch?v=8NC79e0oztM. I was hoping he had a demo of denim; it's mentioned in the video description, but skimming the video I couldn't locate it in a reasonable time. You can look at his demo on treated cellulose around 1:48
    • daveguy 9y ago
      Denim Batt at 12:39 https://youtu.be/8NC79e0oztM?t=12m39s https://youtu.be/8NC79e0oztM?t=12m39s
      • jxramos 9y ago
        bummer ><, I was hoping it would perform a lot better. The brief coverage of the poor performers explains why I couldn't skim it and land on it. Only the strong contenders had long enough coverage to skim with a mouse hover over the timeline and spot them in the thumbnail. Sounds like it was trading on low allergic response vs flammability according to his commentary.
  • Rodeoclash 9y ago
    A library, by definition, is full of flammable materials anyway :)