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5 WSEC Compliance Forms for Commercial Buildings including R2, R3, & R4 over 3 stories and all R1 Revised Jun 2016 <br />Ls = Liner system -- A continuous membrane installed below the purlins and uninterrupted by framing members. Uncompressed, unfaced <br />insulation rests on top of the membrane between the purlins. Refer to Section A102.2.5.4. <br />c.i. = Continuous insulation -- Insulation that is continuous across all structural members without thermal bridges other than service <br />openings and penetrations by metal fasteners with a x-sectional area of less than 0.04% of the opaque surface area of the assembly. <br />Components with more than 0.04% metal penentrations may be eligible to follow the alternate CI values below. <br />int = Intermediate framing -- Includes insulated headers, corners and interior partition wall to exterior wall intersections. Refer to Section <br />A103.2 for framing definitions. <br />Footnote Summary: <br />Each table in the 2015 WSEC has footnotes applicable to specific information provided in the table. This footnote summary provides only <br />abbreviated details from these footnotes. Refer to 2015 WSECfor complete footnote information. <br />Note 1 - Assembly descriptions can be found in Chapter 2 and Appendix A. <br />Note 2 - Use of assembly U-factors, C-fanominal ctors and F-factors from Appendix A and Chapter 3 are required unless otherwise allowed <br />by the provisions of this Code. <br />Note 3 - For metal building roofs where using R-value compliance method, a thermal spacer block is required. Otherwise use the U-factor <br />compliance method. <br />Note 4 - Where heated slabs are below -grade, below -grade walls shall comply with the exterior insulation requirements for heated slabs. <br />Note 5 - Heated slab F-factors shall be determined specifically for heated slabs. Unheated slab F-factors shall not be used. <br />Note 6 - CMU walls in all occupancies other than Group R may be eligible for reduced insulation if all provisions stated in applicable <br />footnote are met. Refer to Footnote D in Table C402.1.4 or Footnote C in Table C402.1.3 for eligibility requirements. <br />Note 7 - Components with continuous insulation but with metal penetrations / connections may be eligible for alternate continuous <br />insulation R-values if all provisions in applicable footnote are met. Refer to alternate prescriptive R-values in table below <br />and Footnote F in Table C402.1.3 for eligibility requirements. <br />Alternate continuous insulation nominal R-values <br />This alternate nominal R-value compliance option is allowed for projects complying with all of the following: <br />1. The ratio of the cross -sectional area, as measured in the plane of the surface, of metal penetrations of otherwise continuous <br />insulation to the opaque surface area of the assembly is greater than 0.0004 (0.04%), but less than 0.0012 (0.12%). <br />2. The metal penetrations of otherwise continuous insulation are isolated or discontinuous (e.g., brick ties or other <br />discontinuous metal attachments, offset brackets supporting shelf angles that allow insulation to go between the shelf <br />angle and the primary portions of the wall structure). No continuous metal elements (e.g., metal studs, z-girts, z-channels, <br />shelf angles) penetrate the otherwise continuous portion of the insulation. <br />3. Building permit drawings shall contain details showing the locations and dimensions of all the metal penetrations (e.g., <br />brick ties or other discontinuous metal attachments, offset brackets, etc.) of otherwise continuous insulation. In addition, <br />calculations shall be provided showing the ratio of the cross -sectional area of metal penetrations of otherwise continuous <br />Assemblies `With <br />conbnnons <br />msalatios (see <br />deLnkilo <br />Alternate option for assemblies with <br />metal penetrations, S'.reaterthan <br />0.04% but less than 0.03% <br />Altomate Option for assembhts W$h <br />metal penetrations, greaterthan or <br />egad to 0.02% but less than 0.12% <br />R-9.5d <br />R 119d <br />R-13d <br />R IlAci <br />R-143d <br />R 15.7d <br />R-13.3ci <br />R 16.6ci <br />R-183ci <br />R-15 21ci <br />R 19.0d <br />R-21ci <br />R-30d <br />R-38d <br />R42d <br />R-38ci <br />R-49ci <br />R-53ci <br />R-I3+R-7.3d <br />R 13+R-9.4ci <br />R-13+R-10.3d <br />R-13+R-loci <br />R-13+R--12.5d <br />R-13+R-13.8d <br />R-13 + R-125ci <br />R-13 + R-15.6d <br />R-13 +R-17.2d <br />R-13+R-1.3d <br />R-13+R-16.3d <br />R-13+R-17.9d <br />R-19+R-8.5d <br />R-19+R-10.6d <br />R-19+R-11.7ci <br />R-19+R-14d <br />R-19+R-17.5ci <br />R-19+R-19.2ci <br />R-19+R-16ci <br />R19+R-20d <br />R-19+R22ci <br />R20+R-3.8d <br />R-20+R4.8d. <br />R-20 +R-53ci <br />R-21 +R-Sci <br />R-21 +R-6.3ci <br />R 21 +R-6.9d <br />End of Envelope Requirements Summary <br />