Attic Insulation Vermiculite safe?
I am starting my SFG this year and just picked up some 3.5 cu ft bags of vermiculite from Menards for $8.99 a bag. The bag says Micaflakes loose fill attic insulation and Menards had it labeled as vermiculite. On the bag it says it is made by Sun Gro Horticulture out of Seneca, IL. I'm assuming it's the same stuff, but just want to double check.
I stopped by Steins across the road and they had 4 cu ft vermiculite that was labeled as Horticulture Vermiculite and that was $21.99 so quite a bit more and it was also made by Sun Gro Horticulture. Does anyone know if the stuff I bought from Menards is the same stuff and would be safe to use?