• Astongt615@lemmy.one
    link
    fedilink
    English
    arrow-up
    1
    ·
    11 months ago

    So flammable mater + low airflow is somehow more fire resistant than flame resistant mater + low airflow? Looks like the source is pure marketing unless their comparable insulation is perforated cardboard coated in fuel gel.

    • Hyperreality@kbin.social
      link
      fedilink
      arrow-up
      0
      ·
      11 months ago

      Roof/attic often uses rockwool or glasswool. Wall insulation is often something like XPS, PIR or PUR.

      Although it sounds counterintuitive, I can see straw doused in flame retardant being better than supposedly flame retardant polystyrene foam made from hydrocarbons. I mean, just look at what happened with Grenfell Tower.