Picking insulation is an exercise in compromise. Every one of them has its share of virtues and faults, among toxic chemicals, high embodied energy, and flame retardants. A lot of green builders love cellulose, but others worry about the leftover inks and other contaminants.
Then there is this stuff from Steico. It is all made from wood fiber, sustainably harvested from renewable resources. It is all vapour permeable, for walls that breathe, which is becoming a more common strategy for dealing with moisture.
Unfortunately, none of this is made here and all gets shipped from Germany, which is a shame; it makes it expensive to use and harder to find, let alone adding to the carbon footprint. But I can't think of a healthier, greener insulation. More at Steico.
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