I've been asked to let HBA builder members know that Spartanburg County is currently enforcing this code that requires fire protection in unfinished basement floors. Mark Weizenecker has done quite a bit of study and work on this and has some good solutions in mind if you would like to reach out to him. He did a short presentation on this at the Feb. membership meeting . In addition,Ron White with All In One Insulation provided some product information in the link below.
Ron White, All In One Insulation has provided the attached product information
Faster Easier Way to Meet NFPA 13.pdf