lib/openstudio-standards/sql_file/fenestration.rb in openstudio-standards-0.6.0.rc2 vs lib/openstudio-standards/sql_file/fenestration.rb in openstudio-standards-0.6.3

@@ -112,10 +112,10 @@
 
       divider_area_m2 = sql.execAndReturnFirstDouble(divider_area_query)
 
       divider_area_m2 = divider_area_m2.is_initialized ? divider_area_m2.get : 0.0
 
-      u_factor_w_per_m2_k = (glass_u_factor_w_per_m2_k * glass_area_m2 + frame_conductance_w_per_m2_k * frame_area_m2 + divider_conductance_w_per_m2_k * divider_area_m2) / (glass_area_m2 + frame_area_m2 + divider_area_m2)
+      u_factor_w_per_m2_k = ((glass_u_factor_w_per_m2_k * glass_area_m2) + (frame_conductance_w_per_m2_k * frame_area_m2) + (divider_conductance_w_per_m2_k * divider_area_m2)) / (glass_area_m2 + frame_area_m2 + divider_area_m2)
 
       return u_factor_w_per_m2_k
     end
 
     # @!endgroup Fenestration