= R19 R11 LS CZ 6 = R25 R11 LS CZ 78 = R30 R11 LS Note a Assembly Descriptions can be found in ASHRAE 901 Appendix A under • 3 Metal Building Roofs • 324 Liner System (Ls) Rvalue Method Note b summarized Rvalue method requires thermal spacer block Thermal spacer blocks are used with Standing Seam Roofs,R19 R11 LS R25 R30 Attic and Other R38 R49 Data compiled by US Department of Energy @ wwwenergycodesgov BECU Building Energy Code Univeristy for clarification on IECC 15 Code Requirements * Group R within each Climate Zone = Buildings with residential occupancies, Hotels, Motels, or Boarding Houses5 R25ci R19 R11 LS R38 6 R30ci R25 R11 LS R49 7 R35ci R30 R11 LS R49 8 R35ci R30 R11 LS R49 ci = Continuous insulation LS = Liner system (a continuous membrane installed below the purlins and uninterrupted by framing Thermal Design Inc Steel Building Insulation Systems What does r19 + r11 ls mean
