HomeMy WebLinkAboutEnergy Letter
5/9/2024
John Plano
Chief Building Official
Garfield County, CO
RE:Morrow Garage & ADU
4190 County Rd 103
Carbondale, CO 81623 Garfield County
Morrow ADU Permit BLRE-06-23-8156
The proposed project meets the requirements of the Garfield County Energy code.
IECC 2018 Table R402.1.2, Climate Zone 5
INSULATION REQUIRED PROPOSED
Wall Insulation R-20 or R13+5 R-27, 13+14ci
Below Grade Furred Walls R-15/19 R14+R10
Attic Knee Walls R-20 or R13+5 R-21
Garage/ADU Wall R-20 or R13+5 R-21
Ceiling Insulation R-49 R-49
Perimeter Insulation R-10, 2’ R-10,3’
Fenestration-Max U .30 Avg: U .28-Low E
Air Barrier Installation shall be per Section R402.4 and Table R402.4.1.1 and Air Tightness testing via
blower door per section R402.4.1.1
Please contact me with any question.
Sincerely,
Jeff Dickinson, Architect