Laserfiche WebLink
Attic and other R-30 or R-19 with cool roof R-30 or R-19 with cool roof <br /> Walls, above grade <br /> Mass R-5.7cid R-5.7cid <br /> Metal building R-13 +R-6.5ci R-13 +R-6.5ci <br /> Metal framed R-13 +R-5ci R-13 +R-5ci <br /> Wood framed and other R-13 +R-3.8ci or R-20 R-13 +R-3.8ci or R-20 <br /> Walls, below grade <br /> Below-grade wall NR NR <br /> Floors <br /> Mass NR NR <br /> Joist/framing NR NR <br /> Slab-on-grade floors <br /> Unheated slabs NR NR <br /> Heated slabs R-7.5 for 12"below R-7.5 for 12"below <br /> Opaque doors <br /> Nonswinging R-4.75 R-4.75 <br /> For SI• I inch=25.4 mm 1 pound per square foot=4.88 kg/M2, 1 pound per cubic foot= 16 kg/m3 <br /> ci=Continuous insulation,NR=No requirement LS=Liner system <br /> a. Assembly descriptions can be found in ANSI/ASHRAEIIESNA Appendix A <br /> b. where using R-value compliance method a thermal spacer block shall be provided,otherwise use <br /> the U-factor compliance method in Table 0402.1.4. <br /> c. Cool roof is defined as a roof with three-year aged solar reflectance of 0.55 and wear aged thermal <br /> emittance of 0.75 or 3-year aged solar reflectance index of 64 <br /> d. R-5.76 is allowed to be substituted with concrete block walls complying with ASTM C 90 <br /> ungrouted or partially grouted at 32 inches or less on center vertically and 48 inches or less on center <br /> horizontally,with ungrouted cores filled with materials having maximum thermal conductivity of <br /> 0.44 Btu-in/h-V OF. See Section 0402.2.3." <br /> (10) Subsection C402.2.3 of the International Energy Conservation Code is amended to <br /> read as follows: <br /> "C402.2.3 Thermal resistance of above-grade walls. The minimum thermal <br /> resistance (R-value) of materials installed in the wall cavity between framing <br /> members and continuously on the walls shall be as specified in Table C402.1.3, based <br /> on framing type and construction materials used in the wall assembly, <br /> 7 <br />