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Table R402.1.1 Footnotes <br /> For SI: 1 foot .= 304.8 mm, ci ._ �nuous insulation, int .= intermediate fra�: <br /> � ' R-values are minimums. U-factors and SHGC are maximums. When insulation is installed in a cavity which is <br /> � less than the label or design thickness of the insulation, the compressed R-value of the insulation from <br /> - Appendix Table A101.4 shall not be less than the R-value specified in the table. <br /> b The fenestration U-factor column excludes skylights. The SHGC column applies to all glazed fenestration. <br /> ` "10/15/21 +TB" means R-10 continuous insulation on the exterior of the wall, or R-15 on the continuous <br /> insulation on the interior of the wall, or R-21 cavity insulation plus a thermal break between the slab and the <br /> basement wall at the interior of the basement wall. "10/15/21.+TB" shall be permitted to be met with R-13 <br /> cavity insul��tion on the interior of the basement wall plus R-S continuous insulation on the interior or exterior <br /> of the wall. "10/13" means R-10 continuous insulation on the interior or exterior of the home or R-13 cavity <br /> insulation at the interior of the basement wall. "TB" means thermal break between floor slab and basement wa <br /> d R-10 continuous insulation is required under heated slab on grade floors. See R402.2.9.1. <br /> `There are ino SHGC requirements in the Marine Zone. <br /> ` Reserved. <br /> �' Reserved. <br /> �' Reserved. <br /> 'The second R-value applies when more than half the insulation is on the interior of the mass wall. <br /> ' Reserved. <br /> k For single rafter- or joist-vaulted ceilings, the insulation may be reduced to R-38. <br /> � Reserved. <br /> m int. (interrnediate framing) denotes standard framing 16 inches on center with headers insulated with a mini <br /> Table R402.1.3 Footnote <br /> a Nonfenestration U-factors shall be obtained from measurement, calculation or an approved source or as spec <br />