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)
Gilbride
Organization(s)
DOE
Publication Date
Description
Case study poster about 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...
Author(s)
Gilbride
Organization(s)
DOE
Publication Date
Description
Case study poster about 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...
Author(s)
PNNL
Organization(s)
PNNL
Publication Date
Description
Case study of a DOE Zero Energy Ready Home in Herriman, UT, that scored HERS 40 without PV, -1 with PV. This 4,111 ft2 production home has R-23 advanced framed walls, and a vented attic with R-60 blown fiberglass.
Author(s)
PNNL
Organization(s)
PNNL
Publication Date
Description
Case study of a DOE Zero Energy Ready Home in Old Greenwich CT, that scored HERS 42 without PV or HERS 20 with PV. This 2,700 ft2 custom home has advanced framed walls with R-24 blown cellulose plus R-7.5 EPS rigid foam, membrane-coated OSB, a close-cell spray foamed attic, R-13 closed-cell spray...
Author(s)
PNNL
Organization(s)
PNNL
Publication Date
Description
Case study of a DOE Zero Energy Ready Home in Devens MA that scored HERS 34 without PV or HERS -21 with PV. This 3,168 ft2 custom home has R-46 double-stud walls, a vented attic with R-67 blown cellulose, plus R-10 rigid XPS under the slab, R-20 closed-cell spray foam on basement walls, triple-pane...