2012 IECC/IRC, Section R402.2.9/ N1102.2.9; 2009 IECC/IRC, Section 402.2.8/ N1102.2.8; Insulation Protection. nfirm that the nstruction documents specify proper insulation protection if applicable. Rigid foam board is typically used for insulating slHENAN OKAY. —2015 IRC, Section R403.3.2, Protection of Horizontal Insulation below Ground.
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