Cold/Very Cold

Map of the Cold and Very Cold regions of the United States.

This Building America Optimized Solution describes a set of building practices necessary to achieve the next step in energy performance for new homes (approximately 30% energy savings above the B10 Benchmark - roughly consistent with the 2009 International Energy Conservation Code).   This package of measures meets and exceeds DOE’s Zero Energy Ready Home (ZERH) program requirements and was selected for its performance in the following areas:

  • Energy Savings
  • Affordability
  • Buildability
  • Durability
  • Healthy Indoor Environment

The high performance builders profiled in the case studies found below the interactive box show just a few examples of the hundreds of ways a builder can meet the premium levels of energy savings Building America strives for, while qualifying for the ZERH.  Print the Optimized Solution for the Cold Climate.

Measure Performance Options
Heating Equipment

94% AFUE (Gas) or 10 HSPF (Electric)

Cooling Equipment

13 SEER

Whole-House Ventilation

ASHRAE 62.2, 5 cfm/W and 70% Heat Recovery

Measure Performance Options
High-R Ceiling

R-49

High-R Walls

R-20 Cavity and R-10 Continuous

High-R Foundation

R-15 Continuous or R-19 Cavity (Basement)

High-R Window

U≤0.27 (R≥3.7), SHGC≥0.46

Air Tightness

ACH50≤2

Measure Performance Options
Water Heating

EF 0.8

Lighting

ENERGY STAR

Appliances

ENERGY STAR

Exhaust Fans

ENERGY STAR

Ceiling Fans

ENERGY STAR

Case Studies

Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
PNNL,
DOE
Publication Date
Description
Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner in Herriman, UT, that scored HERS 40 without PV, -1 with PV.
Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
DOE,
PNNL
Publication Date
Description
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom spec homes in the cold climate that used 11.25-inch R-24 ICF walls, R-60 attic insulation, and a 19 SEER 5-stage heat pump to achieve a HERS score of -2 with PV and 34 without PV.
Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
DOE,
PNNL
Publication Date
Description
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom home in the cold climate that used 2x6, 24-inch on-center advanced framed walls, R-66 unvented attic insulation, and a 36 SEER mini-split heat pump to achieve a HERS score of -8 with PV and 42...
Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
DOE,
PNNL
Publication Date
Description
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning production home in the cold climate that used 2x6, 24-inch on-center walls, R-60 roof insulation, and R-60 blown-in fiberglass attic insulation to achieve a HERS score of 47 without PV.
Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
DOE,
PNNL
Publication Date
Description
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom spec homes in the cold climate that used 2x6, 16-inch on-center walls, R-72 unvented attic insulation, and 16.1 SEER mini-split heat pumps to achieve a HERS score of 19 with PV and 39 without PV.
Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
DOE,
PNNL
Publication Date
Description
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyer homes in the cold climate that used triple-pane windows and two 19 SEER ducted mini-split heat pumps to achieve a HERS score of -97 with PV and 37 without PV.
Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
DOE,
PNNL
Publication Date
Description
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyer homes in the cold climate that used R-44 insulation in the double walls, R-60 blown fiberglass attic insulation, and triple-pane windows to achieve a HERS score of 14 with PV and 44...
Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
DOE,
PNNL
Publication Date
Description
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyer homes in the cold climate that used a2x6, 24-inch on-center walls, R-80 vented attic insulation, and triple-pane windows to achieve a HERS score of -8 with PV and 29 without PV.
Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
DOE,
PNNL
Publication Date
Description
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom spec homes in the cold climate that used 20-inch R-50 blown fiberglass attic insulation and 6.9 kW rooftop solar panels to achieve a HERS score of 24 with PV and 47 without PV.
Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
DOE,
PNNL
Publication Date
Description
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyer home in the cold climate that used R-22 ICF walls, R-63 unvented vaulted attic insulation, and triple-pane windows to achieve a HERS score of -11 with PV and 26 without PV.
Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
DOE,
PNNL
Publication Date
Description
Case study describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom spec home in the cold climate that used a high efficiency 98 AFUE gas furnace, 5-stage 19 SEER heat pump, LED lighting, ENERGY STAR appliances, smart thermostats and lighting, and automated window blinds...
Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
DOE,
PNNL
Publication Date
Description
Case study describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning affordable home in the cold climate that used above-grade walls filled with 5.5 inches of open-cell spray foam and sheathed with an R-6.5 insulated coated OSB sheathing, providing a continuous air barrier and...
Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
DOE,
PNNL
Publication Date
Description
Case study describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyer home in the cold climate that used triple-pane windows, a hydronic radiant floor heating system, an electric vehicle charging station, and 7.3kW of rooftop-mounted solar panels to achieve a HERS...
Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
DOE,
PNNL
Publication Date
Description
Case study describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning attached housing home in the cold climate that used high insulation levels in the attic, walls, and under the slab, with ENERGY STAR appliances, and solar PV panels to achieve a HERS score of 29 with PV and 50...