<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1533657140279_19470"><span>Hi:</span></div><div id="yui_3_16_0_ym19_1_1533657140279_19531"><span><br></span></div><div id="yui_3_16_0_ym19_1_1533657140279_19532"><span id="yui_3_16_0_ym19_1_1533657140279_19533">Does anyone know how to calculate the thermal bridging of steel stud walls? I have a wall with 6" metal studs, 16" OC, with R39 cavity insulation and R10 CI. Table A3.3.3.1 in 90.1-2013 does not go above R21.</span></div><div id="yui_3_16_0_ym19_1_1533657140279_19622"><span id="yui_3_16_0_ym19_1_1533657140279_19533"><br></span></div><div id="yui_3_16_0_ym19_1_1533657140279_19623"><span id="yui_3_16_0_ym19_1_1533657140279_19533">Thank you,</span></div><div id="yui_3_16_0_ym19_1_1533657140279_19494"> </div><div class="signature" id="yui_3_16_0_ym19_1_1533657140279_19488">Paul Diglio<br><br></div></div></body></html>