My favorite is “cellulose insulation” used in attics. It’s basically literally shredded magazines. So you have this fire-starting material chilling in your attic waiting to turn your roof into the Statue of Liberty’s torch. Attics has soffit vents to let the fire motes in, and Bob’s your uncle. Foam stuff isn’t much better. Fire resistant material like fiberglass should be mandatory.
My favorite is “cellulose insulation” used in attics. It’s basically literally shredded magazines. So you have this fire-starting material chilling in your attic waiting to turn your roof into the Statue of Liberty’s torch. Attics has soffit vents to let the fire motes in, and Bob’s your uncle. Foam stuff isn’t much better. Fire resistant material like fiberglass should be mandatory.
Cellulose insulation is usually treated to be fire resistant, meaning it will not spread the flame.
Unfortunately I don’t think this is a mandatory treatment.
My attic is spayed on the underside of the roof, nothing below, maybe 10°F hotter in the summer. And that’s ass cheap Habitat for Humanity home.