Perlite for walls vs Dense pack Cellulose
Has anyone used loose fill perlite for wall cavity insulation on wood framed exterior wall. I am interested in the least toxic insulation for the walls. But I am a little concerned about the moisture retention capabilities of perlite. Does the perlite dry out quickly in a normal framed wall?
Also, does dense pack cellulose have less capacity for moisture retention?
Lastly, has anyone used loose fill perlite for attic insulation.
Climate conditions are north midwest with an average outside humidity of 72% and an indoor humidity set at 50%. Reg D temp is 90 and 2 fahrenheit.
Lastly, in the alternative, is there any experience with foam applied to the outside of OSB on exterrior walls with no wall cavity insulation.