d079b06a_on___Green_Home_Guide_by_USGBC__Application_Tips
[Material] Mineral Wool (AKA Rock Wool or Slag Wool) [Pros] * No additional flame retardants necessary * Abundant materials (steel slag or natural rock) * Moisture resistant * Often contains 75%–90% recycled content [Cons] * Releases some eye, throat and skin irritants [Application Tips] 
Available as batt, loose fill, and board. Appropriate for small to large remodels in areas with moderate to no moisture. Good for wall cavities and attics. Batts and boards require open walls. Can be used below grade if made for that purpose.
Buyer’s Guide to Green Insulation - Green Home Guide by USGBC
Application Tips