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For 51: 1 foo[ s 304.8 mm, ci .= con�muous insulation, int .= intermer'iate iramu�F. <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 [able. <br />e The fenestration U(actor column exdudes skylights. The SHGC column applies to all glazed fenestration. <br />Exception: Skylights may be exduded from glated fenestration SHGC requirements in Climate Zones 1 i <br />through 3 where the SHGC for such skyligh[s does no[ exceed 030. �I <br />`"10/15/21.+T8" means R-10 con[inuous insulation on the exterior of the wall, or R-15 on the con[inuous <br />insulation on the interior of the wall, or R-21 cavity insulation plus a thermal break between ihe slab and the <br />basement wall at the interior of the basement wall. "10/15/21.+TB" shall be permitted ro be met with R-13 <br />cavity msulation on the interior of the basement wall plus R-5 continuous insulation on the interior or <br />exterior of thc wall. "10/13" means R-10 continuous insulation on the interior or ex[erior of the home or R 13 <br />`� R-10 continuous insulation is required under heated slab on grade floors. See R402.29.1. <br />`� here are no SHGC requiremen;s in the Marine Zone. <br />� 6asement wall insulation is not required in warm-humid locations asdefined by Figure R301.; and iable R30 <br />'' Reserved. <br />' First value is cavity insula?ion, second is continuous insulation or insulated siding, so "13.+5" means R-13 cav <br />�I' fhe second R-value applies when more than half the insulation is on Ihe interior o` the mass wall. <br />' For single raher- or joist-vaulted ceilings, the in;ulation may be reduced ro R-38. <br />` Int (intermediate iraming) denotes standard framing 16 inches en center with headers insulated with a mini <br />� Log and solid timber walls with a minimum average thickness of 3.5 inches are exempt from thls insulation rf <br />Table R402.1.3 Footnote <br />' Nonfenestration U-factors shall be obtained from measurement, calculation or an approved source or as <br />