|Interior Finish (vapor permeable)||-||-|
|Interior Gypsum Board (Type X)||-||-|
|Metal Stud (18 GA. Min. @16” O.C.)||-||-|
|Stud Cavity Insulation (Optional)||Dow||2" Styrofoam SPF CM-2045|
|Exterior Gypsum Sheathing*||-||-|
|Self Adhered Air/Water/Vapor Barrier**||Carlisle||705 FR-A|
|Continuous Insulation||-||3" Dual Density Mineral Fiber|
|Cladding Attachment System**||Knight Wall||MFI System|
|Phenolic Panel Cladding**||Fiberesin||Stonewood Architectural Panels|
* For a 1 hour fire rating change Exterior Gypsum Sheathing to Fire Rated Exterior Gypsum Sheathing.
** Product recommendations are based on Type I-IV construction requiring NFPA 285 assembly acceptance criteria compliance per IBC Section 1403.5.
(proposed clear wall U-Factors are approximately 0% | 23% better than code and have 84% | 75% thermal effectiveness)
|Design R-Value: a||R-13 + R-7.5ci||R-12.6ci | R-12.8 + R-12.6ci|
|Total R-Value:||N/A||R-17.90 | R-30.70|
|Effective R-Value:c||N/A||R-14.71 | R-22.39|
|Design U-Factor: a, b||U-0.064||U-0.064 | U-0.049|
|Effective U-Factor: c||N/A||U-0.068 | U-0.045|
|Assembly Air Permeability||0.04 cfm/ft2 @75Pa||0.0014 cfm/ft2 @75Pa|
a Clear wall meets energy code thermal requirements without stud cavity insulation.
b Clear wall U-Factor is based on the stud size & spacing noted above and is calculated per IECC 2015 & ASHRAE 90.1-2013 Appendix A.
c Clear wall effective thermal performance is based on the stud size & spacing noted above, manufacturer literature and industry studies on the thermal performance of facades.