Styrofoam as attic insulation

[kgordon5 (Kurvin Gordon)]

Just today i came acroas an attic like this. Im trying to figure out the r value. It was a 1925 home.

[lkage (Larry Kage, CMI)]

@kgordon5

i came acroas an attic like this. Im trying to figure out the r value. It was a 1925 home.

Possibly:

Unconventional attic insulation. R-value is undeterminable.

[bnesbitt (Bryce Nesbitt)]

@bnesbitt

I found a paper on the toxic cases created by burning foam of different types. Lemme see if I can find it…

https://www.sciencedirect.com/science/article/abs/pii/S0378778810003671

Assessment of the fire toxicity of building insulation materials
DOI 10.1016/j.enbuild.2010.10.015
Anna A. Stec, T. Richard Hull