http://www.quadlock.com/technical_library/bulletins/R-ETRO_Value_of_Basement_Insulation.pdf
Page 69; http://www.buildingscience.com/docu...merica-high-r-foundations-case-study-analysis
If IRC; "1. In concealed spaces of stud walls and partitions, including furred spaces and parallel rows of studs or staggered studs; as follows: 1.1. Vertically at the ceiling and floor levels. 1.2. Horizontally at intervals not exceeding 10 feet (3048 mm)." From:
http://publicecodes.cyberregs.com/icod/irc/2006f2/icod_irc_2006f2_6_sec002_par017.htm Other codes are similar, ask your Fire Marshall.Gary
PS. you may need a fan with a sink...ask AHJ.
Page 69; http://www.buildingscience.com/docu...merica-high-r-foundations-case-study-analysis
If IRC; "1. In concealed spaces of stud walls and partitions, including furred spaces and parallel rows of studs or staggered studs; as follows: 1.1. Vertically at the ceiling and floor levels. 1.2. Horizontally at intervals not exceeding 10 feet (3048 mm)." From:
http://publicecodes.cyberregs.com/icod/irc/2006f2/icod_irc_2006f2_6_sec002_par017.htm Other codes are similar, ask your Fire Marshall.Gary
PS. you may need a fan with a sink...ask AHJ.