climate zone 1 factsheet single family · keep your home cooler in the summer and warmer in the...

CLIMATE ZONE 1 FACTSHEET

SINGLE FAMILY

0.5 0.8 1.6 2.6 3.3 4.5

-0.2

0.0 3.8 4.2 3.2 4.5 18.0-2

0

2

4

6

8

10

12

14

16

18

20

22

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Gla

zin

g:-

U-.

28

SH

GC

.50

Hig

h P

erfo

rman

ce A

ttic

s

Hig

h R

-val

ue

wal

ls: R

-23

+4

Qu

alit

y In

sula

tio

n In

stal

lati

on

Ad

d W

ho

le H

ou

se F

an

A/C

- 1

5 S

EER

13

EER

Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n

Envelope Cooling Heating Water Heating FutureCode

The California Advanced Homes Program (CAHP) provides

generous financial incentives for energy efficient residential

new construction projects and serves to help the California

Public Utilities Commission (CPUC) achieve two visionary

goals. The first goal is to help builders reach beyond the

current energy code and prepare for future code updates.

The second goal is to have all new construction homes reach

Zero Net Energy (ZNE) by 2020.

The CAHP score, generated in the compliance software,

indicates the overall energy efficiency of a home, and includes

all energy uses within the building. The CAHP score is on a

scale from 100 to zero. The lower the score, the more

efficient the home. To qualify for incentives, a home must

earn a CAHP score of 84 or less, submit an application with

compliance documents, and comply with program rules.

THE GOAL OF THIS SHEET

This climate zone fact sheet shows project teams the impact

a variety of energy efficiency measures have on the CAHP

score for a typical single family home in this climate zone.

Due to the diversity in California’s 16 climate zones, individual

efficiency measures will have varying results.

CLIMATE ZONE 1: ENERGY MEASURE IMPACT ON CAHP SCORE

Due to variations in home size, glazing, and equipment choices, the effects of each measure are

variable. CAHP Score impacts on this chart were generated from analysis on four single family

prototype buildings with a baseline equal to the 2013 Code prescriptive standard measure

package. Please contact a CAHP representative for review and analysis of specific projects.

Incentives for single family homes start at $300 for a CAHP score of 84. Every point between 84

and 75 is worth an additional $100. Each point below a CAHP score of 75 is worth an additional

$200.

Please refer to the back page for more information about the 2016 Code Preparation measures.

Trademarks are property of their respective owners. All rights reserved.

CLIMATE ZONE 1

REFERENCE CITY: Eureka

MEASURE DESCRIPTIONS

HIGH R-VALUE WALLS (R-23+4), U=0.049*: One of only four

measures that will become more stringent with the

upcoming 2016 code. The 2013 standard wall has a U-Factor

of 0.065 (R15+4 or R-13+5). In the 2016 code the

prescriptive standard U-Factor will change to 0.050.

ATTIC FLOOR INSULATION (R-49): Attic floor insulation helps

keep your home cooler in the summer and warmer in the

winter. Increasing the insulation level at the attic floor has

minimal incremental costs and will improve the efficiency

and csomfort of your home.

HIGH PERFORMANCE ATTICS & DUCTS IN CONDITIONED

SPACE*: Another measure slated to become part of the

upcoming 2016 code. Builders can either improve the attic

environment (by adding a layer of insulation along the roof

deck in addition to the traditional attic floor insulation) or get

the ducts out of the attic altogether. Both options greatly

reduce the operating costs of the HVAC system.

HIGH AFUE CONDENSING FURNACE (95% AFUE): The

efficiency of a furnace is measured by the Annual Fuel

Utilization Efficiency (AFUE). The higher the AFUE, the

greater the efficiency of the furnace.

AIR CONDITIONING SYSTEM (15 SEER, 13 EER): The efficiency

of an air conditioning system is measured by the Seasonal

Energy Efficiency Ratio and the Energy Efficiency Ratio. The

greater the EER and SEER, the more efficient the AC system.

The Federal Standards for HVAC systems less than 45,000

Btu/hr is 14 SEER, 12.2 EER.

WHOLE HOUSE FAN: A whole house fan can greatly reduce

the energy needed to cool a home. When outside

temperatures cool down to a comfortable level, the whole

house fan is used to rapidly bring cool outdoor air into the

house. The whole house fan is prescriptively required in

climate zones 8-14. For these climate zones, the chart shows

a CAHP Score penalty from not installing a whole house fan.

TANKLESS HOT WATER HEATER (EF = 0.82 / EF = 0.95)*: The

efficiency of a typical residential water heater is measured by

the Energy Factor (EF). The higher the EF, the greater the

efficiency of the water heater. Tankless water heaters are

particularly helpful in coastal climates with lower heating and

cooling needs.

QUALITY INSULATION INSTALLATION (QII)*: Properly installed

insulation is critical for a home to perform as designed. This

measure ensures proper insulation installation by having a

third party HERS Rater inspect and verify.

GLAZING (U-FACTOR = 0.28, SHGC = 0.22): The U-factor and

Solar Heat Gain Coefficient (SHGC) determine the efficiency

of glazing products. Lower U-factor and SHGC coefficients

mean less heat gets through the window through conduction

and solar radiation. Colder coastal climate zones may benefit

from high SHGC values due to reduced winter heating loads.

2016 CODE PREPARATION: Be prepared and build to the 2016

Code early! Take the measures marked with an asterisk (*),

plus building tightness of <3.0 ACH50 and earn a 5 point

kicker.

SINGLE FAMILY INCENTIVE STRUCTURE

$300 for an entry CAHP score of 84. Each

point is worth $100 down to a CAHP score

of 75. Each point below a CAHP score of

75 is worth an additional $200.

This area is along the North Pacific coast. The northern

coastal region is a moist and cool climate that is

considered the coolest climate in California. Heating

dominates this climate zone with very minor cooling

needs. The energy efficiency measures with the largest

impact on the CAHP score include a high efficiency

tankless water heater, condensing furnace, and quality

insulation installation.


SINGLE FAMILY

0.5 0.9 0.9 2.5 3.2 3.6 0.1 0.2 2.9 3.1 3.6 4.8 17.6-2

0

2

4

6

8

10

12

14

16

18

20

22

Gla

zin

g:-

U-.

28

SH

GC

.22

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Hig

h R

-val

ue

wal

ls: R

-23

+4

Qu

alit

y In

sula

tio

n In

stal

lati

on

Hig

h P

erfo

rman

ce A

ttic

s

Re

mo

ve W

ho

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ou

se F

an

A/C

- 1

5 S

EER

13

EER

Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

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de

Pre

par

atio

n

Envelope Cooling Heating Water HeatingFuture Code Preparation





























$200.



CLIMATE ZONE 2

REFERENCE CITY: Napa









































cooling needs.














kicker.






This area ranges from the northern coastal mountains

down to the Northern Central Valley. This zone

experiences cool winters and mildly warm summers with

diurnal temperature fluctuations of more than 20 F.

Heating dominates this climate zone with some cooling



tankless water heater, high performance attics, and

quality insulation installation.


SINGLE FAMILY

0.5 0.7 0.9 2.0 2.2 2.9 -0.2 0.0 2.4 2.2 4.0 5.4 15.9-2

0

2

4

6

8

10

12

14

16

18

20

22

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Gla

zin

g:-

U-.

28

SH

GC

.50

Hig

h P

erfo

rman

ce A

ttic

s

Hig

h R

-val

ue

wal

ls: R

-23

+4

Qu

alit

y In

sula

tio

n In

stal

lati

on

Ad

d W

ho

le H

ou

se F

an

A/C

- 1

5 S

EER

13

EER

Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n






























$200.



CLIMATE ZONE 3

REFERENCE CITY: Oakland and San Francisco









































cooling needs.














kicker.






This coastal area ranges from the San Francisco Bay down

the coast past Big Sur. This zone is a relatively cool

climate with warm and dry summers. Heating dominates

this climate zone with small cooling needs. The energy

efficiency measures with the largest impact on the CAHP

score include a high efficiency tankless water heater,

quality insulation installation, and ducts in conditioned

space.


SINGLE FAMILY

0.8 0.9 1.4 2.3 3.2 4.1 0.2 0.5 3.6 2.5 3.7 5.0 17.8-2

0

2

4

6

8

10

12

14

16

18

20

22

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Gla

zin

g:-

U-.

28

SH

GC

.22

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Hig

h R

-val

ue

wal

ls: R

-23

+4

Qu

alit

y In

sula

tio

n In

stal

lati

on

Hig

h P

erfo

rman

ce A

ttic

s

A/C

- 1

5 S

EER

13

EER

Ad

d W

ho

le H

ou

se F

an

Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n






























$200.



CLIMATE ZONE 4

REFERENCE CITY: San Jose









































cooling needs.














kicker.






This area encompasses the Central Coast Range. This

zone is comprised of numerous microclimates

throughout central California. Seasons are well defined

with mildly cool winters and hot, dry summers. Heating

dominates this climate zone, with moderate cooling



tankless water heater, high performance attics, and ducts

in conditioned space.


SINGLE FAMILY

0.6 0.7 1.0 1.6 2.1 2.7 -0.2 0.0 2.1 1.8 3.9 5.3 15.2-2

0

2

4

6

8

10

12

14

16

18

20

22

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Gla

zin

g:-

U-.

28

SH

GC

.50

Hig

h P

erfo

rman

ce A

ttic

s

Hig

h R

-val

ue

wal

ls: R

-23

+4

Qu

alit

y In

sula

tio

n In

stal

lati

on

Ad

d W

ho

le H

ou

se F

an

A/C

- 1

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13

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Du

cts

in C

on

dit

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ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n






























$200.



CLIMATE ZONE 5

REFERENCE CITY: Santa Maria









































cooling needs.














kicker.






This area is along the central Pacific coast. This zone has

cool winters and warm summers, and the mild climate

results in low energy consumption. Heating is needed for

portions of the day and very little cooling is needed. The

energy efficiency measures with the largest impact on

the CAHP score include a high efficiency tankless water

heater, quality insulation installation, and high R-value

walls.


SINGLE FAMILY

0.4 0.5 0.8 1.7 2.0 2.6 0.2 0.2 2.1 1.1 4.6 6.1 15.6-2

0

2

4

6

8

10

12

14

16

18

20

22

Gla

zin

g:-

U-.

28

SH

GC

.22

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Hig

h R

-val

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wal

ls: R

-23

+4

Qu

alit

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sula

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stal

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Hig

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Ad

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an

A/C

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13

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in C

on

dit

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ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n






























$200.



CLIMATE ZONE 6

REFERENCE CITY: Los Angeles (LAX)









































cooling needs.














kicker.






This area encompasses the beaches and small inland

regions bordering the southern California hills. Winters

can be cool and summers can be warm, requiring some

heating and cooling, but domestic water heating use

dominates the energy budget in this climate. The energy


score include a high efficiency tankless water heater, high

performance attics, ducts in conditioned space, and

quality insulation installation.


SINGLE FAMILY

0.3 0.3 0.4 0.9 1.1 1.4

-0.7

0.1 1.2 0.4 4.8 6.4 12.9-2

0

2

4

6

8

10

12

14

16

18

20

22

Gla

zin

g:-

U-.

28

SH

GC

.22

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Hig

h R

-val

ue

wal

ls: R

-23

+4

Qu

alit

y In

sula

tio

n In

stal

lati

on

Hig

h P

erfo

rman

ce A

ttic

s

Ad

d W

ho

le H

ou

se F

an

A/C

- 1

5 S

EER

13

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Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n


























prototype buildings with a baseline equal to the 2013 Code prescriptive standard measure package.

Please contact a CAHP representative for review and analysis of specific projects.

Incentives for single family homes start at $300 for a CAHP score of 84. Every point between 84 and

75 is worth an additional $100. Each point below a CAHP score of 75 is worth an additional $200.



CLIMATE ZONE 7

REFERENCE CITY: San Diego









































cooling needs.














kicker.






This area is located along the southernmost coast of

California. The warm Pacific Ocean water regulates the

mild climate throughout the year. This is a very mild

climate with the lowest energy consumption in California

for thermal comfort. Small amounts of heating and

cooling are required in this climate zone with a large

percentage of the energy budget coming from domestic

hot water use. A high efficiency tankless water heater

has the largest impact on the CAHP score.


SINGLE FAMILY

1.0 1.2 1.2 1.7 2.0 5.1

-4.4

0.5 2.5 0.7 4.3 5.7 18.2-2

0

2

4

6

8

10

12

14

16

18

20

22

Gla

zin

g:-

U-.

28

SH

GC

.22

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Hig

h R

-val

ue

wal

ls: R

-23

+4

Qu

alit

y In

sula

tio

n In

stal

lati

on

Hig

h P

erfo

rman

ce A

ttic

s

Re

mo

ve W

ho

le H

ou

se F

an

A/C

- 1

5 S

EER

13

EER

Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n

























variable. CAHP Score impacts on this chart were generated from analysis on four single family prototype

buildings with a baseline equal to the 2013 Code prescriptive standard measure package. Please

contact a CAHP representative for review and analysis of specific projects.

Incentives for single family homes start at $300 for a CAHP score of 84. Every point between 84 and 75

is worth an additional $100. Each point below a CAHP score of 75 is worth an additional $200.



CLIMATE ZONE 8

REFERENCE CITY: Long Beach









































cooling needs.














kicker.






This area is inland from the southern coastal regions of

California. The ocean helps regulate the temperatures

from being too extreme. Winters are cool and summers

are warm. Moderate heating and cooling is required in

this climate zone. The energy efficiency measures with

the largest impact on the CAHP score include a high

efficiency tankless water heater, high performance attics,

and a whole house fan.


SINGLE FAMILY

1.3 1.3 1.4 2.3 2.6 6.8-3.3

1.0 4.2 0.9 3.5 4.6 20.7

-2

0

2

4

6

8

10

12

14

16

18

20

22

Gla

zin

g:-

U-.

28

SH

GC

.22

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Hig

h R

-val

ue

wal

ls: R

-23

+4

Qu

alit

y In

sula

tio

n In

stal

lati

on

Hig

h P

erfo

rman

ce A

ttic

s

Re

mo

ve W

ho

le H

ou

se F

an

A/C

- 1

5 S

EER

13

EER

Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n
























Due to variations in home size, glazing, and equipment choices, the effects of each measure are variable.

CAHP Score impacts on this chart were generated from analysis on four single family prototype buildings

with a baseline equal to the 2013 Code prescriptive standard measure package. Please contact a CAHP

representative for review and analysis of specific projects.

Incentives for single family homes start at $300 for a CAHP score of 84. Every point between 84 and 75 is

worth an additional $100. Each point below a CAHP score of 75 is worth an additional $200. Please refer

to the back page for more information about the 2016 Code Preparation measures.


CLIMATE ZONE 9

REFERENCE CITY: Los Angeles (Civic Center)









































cooling needs.














kicker.






This area is comprised of the Southern Californian inland

valley. Both the ocean and the inland areas affect the

climate in this region. Winters are cool and summers are

hot. Moderate heating and significant cooling is needed

in this climate zone. The energy efficiency measures with

the largest impact on the CAHP score include high

performance attics, a high efficiency tankless water

heater, and ducts in conditioned space.


SINGLE FAMILY

1.1 1.3 1.4 2.4 2.7 6.3

-3.7

1.1 4.4 1.0 3.5 4.5 20.3-2

0

2

4

6

8

10

12

14

16

18

20

22

Gla

zin

g:-

U-.

28

SH

GC

.22

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Hig

h R

-val

ue

wal

ls: R

-23

+4

Qu

alit

y In

sula

tio

n In

stal

lati

on

Hig

h P

erfo

rman

ce A

ttic

s

Re

mo

ve W

ho

le H

ou

se F

an

A/C

- 1

5 S

EER

13

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Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n





























worth an additional $100. Each point below a CAHP score of 75 is worth an additional $200.



CLIMATE ZONE 10

REFERENCE CITY: Riverside









































cooling needs.














kicker.






This area encompasses Southern California hilltops and

valleys. There is a substantial swing in winter and

summer temperatures compared to the adjacent coastal

climate zones with cold winters and hot summers.

Significant heating and cooling are needed in this climate

zone. The energy efficiency measures with the largest

impact on the CAHP score include high performance

attics, ducts in conditioned space, and a high efficiency

tankless water heater.


SINGLE FAMILY

0.7 1.3 1.5 3.2 3.7 6.0-1.6

1.7 5.2 2.0 2.5 3.3 20.9-2

0

2

4

6

8

10

12

14

16

18

20

22

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Gla

zin

g:-

U-.

28

SH

GC

.22

Hig

h R

-val

ue

wal

ls: R

-23

+4

Qu

alit

y In

sula

tio

n In

stal

lati

on

Hig

h P

erfo

rman

ce A

ttic

s

Re

mo

ve W

ho

le H

ou

se F

an

A/C

- 1

5 S

EER

13

EER

Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n
































CLIMATE ZONE 11

REFERENCE CITY: Red Bluff









































cooling needs.














kicker.






This area includes the northern California valley, which is

bounded by mountainous ranges on three sides. Seasons

are well defined with very cold winters and hot, dry

summers. Large amounts of heating and significant

cooling is needed in this climate zone. The energy


score include high performance attics, ducts in

conditioned space and quality insulation installation.


SINGLE FAMILY

0.7 1.4 1.4 3.1 3.8 5.9

-4.5

0.7 4.9 2.6 3.1 4.1 21.1

-2

0

2

4

6

8

10

12

14

16

18

20

22

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Gla

zin

g:-

U-.

28

SH

GC

.22

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Hig

h R

-val

ue

wal

ls: R

-23

+4

Qu

alit

y In

sula

tio

n In

stal

lati

on

Hig

h P

erfo

rman

ce A

ttic

s

Re

mo

ve W

ho

le H

ou

se F

an

A/C

- 1

5 S

EER

13

EER

Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n
































CLIMATE ZONE 12

REFERENCE CITY: Stockton









































cooling needs.














kicker.






This area is the Northern California Central Valley, which

is inland from the San Francisco Bay Area. Winters are

colder and summers are hotter than climate zone 3 to

the west, but slightly milder than surrounding climate

zones 11 and 13. This zone has large diurnal temperature

swings with the delta breeze, making it ideal for whole-

house fans to assist with evening cooling loads.

Significant heating and cooling is required in this climate

zone.


SINGLE FAMILY

0.7 1.2 1.6 3.1 3.5 7.2-1.6

1.7 5.8 1.8 2.5 3.3 21.8

-2

0

2

4

6

8

10

12

14

16

18

20

22

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Gla

zin

g:-

U-.

28

SH

GC

.22

Hig

h R

-val

ue

wal

ls: R

-23

+4

Qu

alit

y In

sula

tio

n In

stal

lati

on

Hig

h P

erfo

rman

ce A

ttic

s

Re

mo

ve W

ho

le H

ou

se F

an

A/C

- 1

5 S

EER

13

EER

Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n
































CLIMATE ZONE 13

REFERENCE CITY: Fresno









































cooling needs.














kicker.






This is the southern area of California’s Central Valley.

Winters can be harshly cold and summers are hot and

humid with lots of sunshine, making energy consumption

high in this region. Significant heating and considerable

cooling is required in this climate zone. The energy



conditioned space, and quality insulation installation.


SINGLE FAMILY

0.7 1.4 1.5 3.3 3.9 5.5-1.2

1.5 5.3 2.1 2.7 3.6 21.1

-2

0

2

4

6

8

10

12

14

16

18

20

22

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Gla

zin

g:-

U-.

28

SH

GC

.22

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Hig

h R

-val

ue

wal

ls: R

-23

+4

Qu

alit

y In

sula

tio

n In

stal

lati

on

Hig

h P

erfo

rman

ce A

ttic

s

Re

mo

ve W

ho

le H

ou

se F

an

A/C

- 1

5 S

EER

13

EER

Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n
































CLIMATE ZONE 14

REFERENCE CITY: Barstow









































cooling needs.














kicker.






This area is comprised of medium to high desert and is

influenced by the neighboring cold climate zone 16 and

the subtropical climate zone 15. Winters are very cold

and summers are hot and dry. There are large diurnal

swings in temperature. Large amounts of both heating

and cooling are required in this climate zone. The energy



conditioned space, and quality insulation installation.


SINGLE FAMILY

0.7 1.1 1.7 2.5 2.9 7.3

-0.3

3.0 5.6 0.1 2.1 2.6 20.4-2

0

2

4

6

8

10

12

14

16

18

20

22

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Gla

zin

g:-

U-.

28

SH

GC

.22

Qu

alit

y In

sula

tio

n In

stal

lati

on

Hig

h R

-val

ue

wal

ls: R

-23

+4

Hig

h P

erfo

rman

ce A

ttic

s

Ad

d W

ho

le H

ou

se F

an

A/C

- 1

5 S

EER

13

EER

Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n
































CLIMATE ZONE 15

REFERENCE CITY: Brawly









































cooling needs.














kicker.






This is the low desert area of Southern California.

Winters are moderately cold and summers are extremely

hot and dry. Average temperatures are much higher

than all other zones in California. Some heating is

required and very large amounts of cooling are required.

The energy efficiency measures with the largest impact

on the CAHP score include high performance attics, ducts

in conditioned space, and a high efficiency AC system.


SINGLE FAMILY

0.8 0.9 1.4 3.5 4.8 5.0

0.10.3

5.5 5.6 3.1 4.2 20.7-2

0

2

4

6

8

10

12

14

16

18

20

22

Att

ic F

loo

r In

sula

tio

n:

R-4

9

Gla

zin

g:-

U-.

28

SH

GC

.22

Bu

ildin

g Ti

ghtn

ess:

3 A

CH

50

Hig

h R

-val

ue

wal

ls: R

-23

+4

Hig

h P

erfo

rman

ce A

ttic

s

Qu

alit

y In

sula

tio

n In

stal

lati

on

Ad

d W

ho

le H

ou

se F

an

A/C

- 1

5 S

EER

13

EER

Du

cts

in C

on

dit

ion

ed

Sp

ace

Co

nd

ensi

ng

Furn

ace:

95

AFU

E

Bas

ic T

ankl

ess

: EF

= .8

2

Co

nd

ensi

ng

Tan

kle

ss: E

F =

.95

20

16

Co

de

Pre

par

atio

n




























Incentives for single family homes start at $300 for a CAHP score of 84. Every point between 84 and 75

is worth an additional $100. Each point below a CAHP score of 75 is worth an additional $200.



CLIMATE ZONE 16

REFERENCE CITY: Bishop









































cooling needs.














kicker.






This area covers a large part of California and consists of

mountainous, semiarid regions with elevations above

5000 ft. Very cold weather dominates for more than half

the year although temperatures can vary due to

elevation and orientation. This zone has the highest

heating requirements in California and a very small

amount of cooling is needed. A high efficiency furnace

has the largest impact on the CAHP score in this climate

zone.

climate zone 1 factsheet single family · keep your home cooler in the summer and warmer in the...

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