COMcheck Desktop 4.1.1

What’s new: 

Version addresses the following:

  • The 2015/2018 IECC compliance determination method in COMcheck now allows opaque and fenestration trade-off's per 2015 IECC errata. This errata removes the need for enforcing the area-weighted fenestration U-factor requirement. This singular change to the compliance methodology will generally improve compliance results for projects where the area-weighted average fenestration U-factor requirement was compliant.
  • The 2015/2018 IECC compliance determination method was modified further to correct errors found in the equations of the published version of C402.1.5. This modification will impact existing projects that have window/wall or skylight/roof percentages in excess of IECC limitations.
  • Metal building wall construction types were enhanced. Heated slab-on-grade F-factor determination was enhanced. 2015/2018 IECC Nonstandard water chillers efficiency requirement for "high performance HVAC" efficiency option was corrected. Exterior lighting report compliance banner is now output. 2018 IECC interior lighting alteration exemptions now include the "10% or less" exemption. 2018 IECC standing seam metal building roof construction proposed U-factor reference has been corrected impacting existing projects that include this assembly.
Release date: 
Monday, November 19, 2018