BLD-2020-1179 TITLE 24 REPORTBUILDING ENERGY ANALYSIS REPORT
PROJECT:
Project Designer:
Report Prepared by:
Job Number:
Date:
The EnergyPro computer program has been used to perform the calculations summarized in this compliance report. This program h as approval and is
authorized by the California Energy Commission for use with both the Residential and Nonresidential 2019 Building Energy Efficiency Standards.
This program developed by EnergySoft Software – www.energysoft.com.
3550 Stevens Creek Blvd UNIT 225
Innovative Concepts
San Jose, CA 95117
Phone
10791 Juniper Ct
Otis ADU
Cupertino, CA 95014
21 N. Harrison Ave., Ste 210
FRI Energy Consultants, LLC
Adam Bailey
Campbell, CA 95008
408-866-1620
0200524
7/29/2020
Independent Code
Consultants11/09/20
CERTIFICATE OF COMPLIANCE CF1R-PRF-01E
Project Name: Otis ADU Calculation Date/Time: 2020-07-29T11:40:21-07:00 (Page 1 of 11)
Calculation Description: Title 24 Analysis Input File Name: 0200524 Otis ADU.ribd19x
Registration Number: Registration Date/Time: HERS Provider:
CA Building Energy Efficiency Standards - 2019 Residential Compliance Report Version: 2019.1.108
Schema Version: rev 20200101
Report Generated: 2020-07-29 11:41:48
GENERAL INFORMATION
01 Project Name Otis ADU
02 Run Title Title 24 Analysis
03 Project Location 10789 Juniper Ct
04 City Cupertino 05 Standards Version 2019
06 Zip code 95014 07 Software Version EnergyPro 8.1
08 Climate Zone 4 09 Front Orientation (deg/ Cardinal) 225
10 Building Type Single family 11 Number of Dwelling Units 1
12 Project Scope NewConstruction 13 Number of Bedrooms 1
14 Addition Cond. Floor Area (ft2) 0 15 Number of Stories 1
16 Existing Cond. Floor Area (ft2) n/a 17 Fenestration Average U-factor 0.3
18 Tota l Cond. Floor Area (ft2) 732 19 Glazing Percentage (%) 22.81%
20 ADU Bedroom Count 0 21 ADU Conditioned Floor Area 0
22 Is Natural Gas Available? Yes
COMPLIANCE RESULTS
01 Building Complies with Computer Performance
02 This building incorporates fea tures that require field testing and/or verification by a certified HERS rater under the supervision of a CEC-approved HERS provider.
03 This building incorporates one or more Special Features shown below
220-P010135096B-000-000-0000000-0000 2020-07-29 11:44:39 CalCERTS inc.
CERTIFICATE OF COMPLIANCE CF1R-PRF-01E
Project Name: Otis ADU Calculation Date/Time: 2020-07-29T11:40:21-07:00 (Page 2 of 11)
Calculation Description: Title 24 Analysis Input File Name: 0200524 Otis ADU.ribd19x
Registration Number: Registration Date/Time: HERS Provider:
CA Building Energy Efficiency Standards - 2019 Residential Compliance Report Version: 2019.1.108
Schema Version: rev 20200101
Report Generated: 2020-07-29 11:41:48
ENERGY DESIGN RATING
Energy Design Ratings Compliance Margins
Efficiency¹ (EDR) Tota l² (EDR) Efficiency¹ (EDR) Tota l² (EDR)
Standard Design 57.8 34.1
Proposed Design 56.8 33.1 1 1
RESULT: 3: COMPLIES
1: Efficiency EDR includes improvements to the building envelope and more efficient equipment
2: Total EDR includes efficiency and demand response measures such as photovoltaic (PV) systems and batteries
3: Building complies when efficiency and total compliance margins are greater than or equal to zero
• Standard Design PV Capacity: 1.62 kWdc
• PV System resized to 1.62 kWdc (a factor of 1.622) to achieve 'Standard Design PV' PV scaling
ENERGY USE SUMMARY
Energy Use (kTDV/ft2-yr) Standard Design Proposed Design Compliance Margin Percent Improvement
Space Heating 38.96 29.89 9.07 23.3
Space Cooling 8.12 12.92 -4.8 -59.1
IAQ Ventilation 7.64 7.64 0 0
Water Heating 27.29 27.81 -0.52 -1.9
Self Utilization Credit n/a 0 0 n/a
Compliance Energy Total 82.01 78.26 3.75 4.6
REQUIRED PV SYSTEMS - SIMPLIFIED
01 02 03 04 05 06 07 08 09 10 11 12
DC System Size
(kWdc) Exception Module Type Array Type Power Electronics CFI Azimuth
(deg)
Tilt
Input
Array Angle
(deg) Tilt: (x in 12) Inverter Eff.
(%)
Annual
Solar Access
(%)
1.62 NA Standard Fixed (roof
mount)none true 150-270 n/a n/a <=7:12 96 100
220-P010135096B-000-000-0000000-0000 2020-07-29 11:44:39 CalCERTS inc.
CERTIFICATE OF COMPLIANCE CF1R-PRF-01E
Project Name: Otis ADU Calculation Date/Time: 2020-07-29T11:40:21-07:00 (Page 3 of 11)
Calculation Description: Title 24 Analysis Input File Name: 0200524 Otis ADU.ribd19x
Registration Number: Registration Date/Time: HERS Provider:
CA Building Energy Efficiency Standards - 2019 Residential Compliance Report Version: 2019.1.108
Schema Version: rev 20200101
Report Generated: 2020-07-29 11:41:48
REQUIRED SPECIAL FEATURES
The following are features that must be installed as condition for meeting the modeled energy performance for this computer analysis.
• Ind oor a ir quality, balanced fan
• Insulation below roof deck
• Window overhangs and/or fins
• Non-standard duct location (any location other than attic)
• Northwest Energy Efficiency Alliance (NEEA) rated heat pump water heater; specific brand/model, or equivalent, must be installed
HERS FEATURE SUMMARY
The following is a summary of the features that must be field-verified by a certified HERS Rater as a condition for meeting the modeled energy performance for this computer analysis. Additional
detail is provided in the buildng tables below. Registered CF2Rs and CF3Rs are required to be completed in the HERS Registry
Building-level Verifications:
• Quality insulation installation (QII)
• Ind oor a ir quality ventilation
• Kitchen range hood
Cooling System Verifications:
• Minimum Airflow
• Verified SEER
• Fan Efficacy Watts/CFM
Heating System Verifications:
• Verified HSPF
• Verified heat pump rated heating capacity
HVAC Distribution System Verifications:
• Duct leakage testing
• Ducts located entirely in conditioned space confirmed by duct leakage testing
Domestic Hot Water System Verifications:
• -- None --
BUILDING - FEATURES INFORMATION
01 02 03 04 05 06 07
Project Name Conditioned Floor Area (ft2) Number of Dwelling
Units Number of Bedrooms Number of Zones Number of Ventilation
Cooling Systems
Number of Water
Heating Systems
Otis ADU 732 1 1 1 0 1
220-P010135096B-000-000-0000000-0000 2020-07-29 11:44:39 CalCERTS inc.
CERTIFICATE OF COMPLIANCE CF1R-PRF-01E
Project Name: Otis ADU Calculation Date/Time: 2020-07-29T11:40:21-07:00 (Page 4 of 11)
Calculation Description: Title 24 Analysis Input File Name: 0200524 Otis ADU.ribd19x
Registration Number: Registration Date/Time: HERS Provider:
CA Building Energy Efficiency Standards - 2019 Residential Compliance Report Version: 2019.1.108
Schema Version: rev 20200101
Report Generated: 2020-07-29 11:41:48
ZONE INFORMATION
01 02 03 04 05 06 07
Zone Name Zone Type HVAC System Name Zone Floor Area (ft2) Avg. Ceiling Height Water Heating System 1 Water Heating System 2
Accessory Dwelling Unit Conditioned HVAC System1 732 9.8 DHW Sys 1 N/A
OPAQUE SURFACES
01 02 03 04 05 06 07 08
Name Zone Construction Azimuth Orientation Gross Area (ft2)Window and Door
Area (ft2)Tilt (deg)
Right Wall Accessory Dwelling
Unit 2x4 R-19 Wall 135 Right 405 60 90
Front Wall Accessory Dwelling
Unit 2x4 R-19 Wall 225 Front 255 25 90
Left Wall Accessory Dwelling
Unit 2x4 R-19 Wall 315 Left 405 48 90
Rear Wall Accessory Dwelling
Unit 2x4 R-19 Wall 45 Back 255 53.9971 90
Roof 2 Accessory Dwelling
Unit R-38 HP Attic n/a n/a 345 n/a n/a
OPAQUE SURFACES - CATHEDRAL CEILINGS
01 02 03 04 05 06 07 08 09 10 11
Name Zone Construction Azimuth Orientation Area (ft2)
Skylight Area
(ft2)
Roof Rise (x in
12)
Roof
Reflectance Roof Emittance Cool Roof
Roof Accessory
Dwelling Unit
R-40 Roof No
Attic 135 n/a 387 0 6 0.1 0.85 No
220-P010135096B-000-000-0000000-0000 2020-07-29 11:44:39 CalCERTS inc.
CERTIFICATE OF COMPLIANCE CF1R-PRF-01E
Project Name: Otis ADU Calculation Date/Time: 2020-07-29T11:40:21-07:00 (Page 5 of 11)
Calculation Description: Title 24 Analysis Input File Name: 0200524 Otis ADU.ribd19x
Registration Number: Registration Date/Time: HERS Provider:
CA Building Energy Efficiency Standards - 2019 Residential Compliance Report Version: 2019.1.108
Schema Version: rev 20200101
Report Generated: 2020-07-29 11:41:48
ATTIC
01 02 03 04 05 06 07 08
Name Construction Type Roof Rise (x in 12) Roof Reflectance Roof Emittance Radiant Barrier Cool Roof
Attic Accessory
Dwelling Unit
Attic RoofAccessory
Dwelling Unit Ventilated 6 0.1 0.85 No No
FENESTRATION / GLAZING
01 02 03 04 05 06 07 08 09 10 11 12 13 14
Name Type Surface Orientation Azimuth Width
(ft)
Height
(ft) Mult. Area
(ft2)U-factor U-factor
Source SHGC
SHGC
Sourc
e
Exterior
Shading
Window Window Right Wall Right 135 1 16 0.3 NFRC 0.23 NFRC Bug Screen
Window 2 Window Right Wall Right 135 3 8 1 24 0.3 NFRC 0.23 NFRC Bug Screen
Window 3 Window Front Wall Front 225 1 25 0.3 NFRC 0.23 NFRC Bug Screen
Window 4 Window Left Wall Left 315 1 23 0.3 NFRC 0.23 NFRC Bug Screen
Window 5 Window Left Wall Left 315 1 25 0.3 NFRC 0.23 NFRC Bug Screen
Window 6 Window Rear Wall Back 45 3 3.7 1 14 0.3 NFRC 0.23 NFRC Bug Screen
Window 7 Window Rear Wall Back 45 1 40 0.3 NFRC 0.23 NFRC Bug Screen
OPAQUE DOORS
01 02 03 04
Name Side of Building Area (ft2) U-factor
Door Right Wall 20 0.2
OVERHANGS AND FINS
01 02 03 04 05 06 07 08 09 10 11 12 13 14
Window
Overhang Left Fin Right Fin
Depth Dist Up Left Extent Right
Extent Flap Ht. Depth Top Up Dist L Bot Up Depth Top Up Dist R Bot Up
Window 2 8 0.1 1 1 0 0 0 0 0 0 0 0 0
220-P010135096B-000-000-0000000-0000 2020-07-29 11:44:39 CalCERTS inc.
CERTIFICATE OF COMPLIANCE CF1R-PRF-01E
Project Name: Otis ADU Calculation Date/Time: 2020-07-29T11:40:21-07:00 (Page 6 of 11)
Calculation Description: Title 24 Analysis Input File Name: 0200524 Otis ADU.ribd19x
Registration Number: Registration Date/Time: HERS Provider:
CA Building Energy Efficiency Standards - 2019 Residential Compliance Report Version: 2019.1.108
Schema Version: rev 20200101
Report Generated: 2020-07-29 11:41:48
OVERHANGS AND FINS
01 02 03 04 05 06 07 08 09 10 11 12 13 14
Window
Overhang Left Fin Right Fin
Depth Dist Up Left Extent Right
Extent Flap Ht. Depth Top Up Dist L Bot Up Depth Top Up Dist R Bot Up
Window 6 4 0.1 2 3 0 0 0 0 0 0 0 0 0
SLAB FLOORS
01 02 03 04 05 06 07
Name Zone Area (ft2) Perimeter (ft) Edge Insul. R-value and Depth Carpeted Fraction Heated
Slab Accessory Dwelling
Unit 732 134 None 80% No
OPAQUE SURFACE CONSTRUCTIONS
01 02 03 04 05 06 07 08
Construction Name Surface Type Construction Type Framing Total Cavity
R-value
Interior / Exterior
Continuous
R-value
U-factor Assembly Layers
2x4 R-19 Wall Exterior Walls Wood Framed Wall 2x4 @ 16 in. O. C. R-19 None /None 0.086
Inside Finish: Gypsum Board
Cavity / Frame: R-19 / 2x4
Exterior Finish: 3 Coat Stucco
R-40 Roof No Attic Cathedral Ceilings Wood Framed
Ceiling 2x8 @ 16 in. O. C. R-0 R-40 /None 0.023
Roofing: Light Roof (Asphalt Shingle)
Roof Deck: Wood
Siding/sheathing/decking
Cavity / Frame: no insul. / 2x8
Sheathing / Insulation: R-40 Sheathing
Inside Finish: Gypsum Board
Attic RoofAccessory
Dwelling Unit Attic Roofs Wood Framed
Ceiling 2x4 @ 24 in. O. C. R-19 None /None 0.052
Roofing: Light Roof (Asphalt Shingle)
Roof Deck: Wood
Siding/sheathing/decking
Cavity / Frame: R-13.0 / 2x4
Under Roof Joists: R-6.0 insul.
220-P010135096B-000-000-0000000-0000 2020-07-29 11:44:39 CalCERTS inc.
CERTIFICATE OF COMPLIANCE CF1R-PRF-01E
Project Name: Otis ADU Calculation Date/Time: 2020-07-29T11:40:21-07:00 (Page 7 of 11)
Calculation Description: Title 24 Analysis Input File Name: 0200524 Otis ADU.ribd19x
Registration Number: Registration Date/Time: HERS Provider:
CA Building Energy Efficiency Standards - 2019 Residential Compliance Report Version: 2019.1.108
Schema Version: rev 20200101
Report Generated: 2020-07-29 11:41:48
OPAQUE SURFACE CONSTRUCTIONS
01 02 03 04 05 06 07 08
Construction Name Surface Type Construction Type Framing Total Cavity
R-value
Interior / Exterior
Continuous
R-value
U-factor Assembly Layers
R-38 HP Attic Ceilings (below
attic)
Wood Framed
Ceiling 2x4 @ 24 in. O. C. R-38 None /None 0.025
Over Ceiling Joists: R-28.9 insul.
Cavity / Frame: R-9.1 /2x4
Inside Finish: Gypsum Board
BUILDING ENVELOPE - HERS VERIFICATION
01 02 03 04
Quality Insulation Installation (QII) Quality Installation of Spray Foam Insulation Building Envelope Air Leakage CFM50
Required Not Required Not Required n/a
WATER HEATING SYSTEMS
01 02 03 04 05 06 07
Name System Type Distribution Type Water Heater Name (#) Solar Heating System Compact Distribution HERS Verification
DHW Sys 1 Domestic Hot Water
(DHW)
Standard Distribution
System DHW Heater 1 (1) n/a None n/a
WATER HEATERS
01 02 03 04 05 06 07 08 09 10 11 12
Name
Heating
Element
Type
Tank Type #
Units
Tank
Vol.
(gal)
Energy
Factor or
Efficiency
Input Rating
or Pilot
Tank
Insulation
R-value
(Int/Ext)
Standby Loss
or Recovery
Eff.
1st Hr. Rating
or Flow Rate
NEEA Heat Pump
Brand or Model
Tank Location or
Ambient Condition
DHW Heater 1 Heat Pump n/a 1 50 NEEA n/a n/a n/a 80 gal Rheem\RheemXE5
0T10 Outside
220-P010135096B-000-000-0000000-0000 2020-07-29 11:44:39 CalCERTS inc.
CERTIFICATE OF COMPLIANCE CF1R-PRF-01E
Project Name: Otis ADU Calculation Date/Time: 2020-07-29T11:40:21-07:00 (Page 8 of 11)
Calculation Description: Title 24 Analysis Input File Name: 0200524 Otis ADU.ribd19x
Registration Number: Registration Date/Time: HERS Provider:
CA Building Energy Efficiency Standards - 2019 Residential Compliance Report Version: 2019.1.108
Schema Version: rev 20200101
Report Generated: 2020-07-29 11:41:48
WATER HEATING - HERS VERIFICATION
01 02 03 04 05 06 07 08
Name Pipe Insulation Parallel Piping Compact Distribution Compact Distribution
Type Recirculation Control Central DHW
Distribution
Shower Drain Water
Heat Recovery
DHW Sys 1 - 1/1 Not Required Not Required Not Required None Not Required Not Required Not Required
SPACE CONDITIONING SYSTEMS
01 02 03 04 05 06 07 08 09 10 11
Name System Type Heating Unit
Name
Cooling Unit
Name Fan Name Distribution
Name
Required
Thermostat
Type
Status
Verified
Existing
Condition
Heating
Equipment
Count
Cooling
Equipment
Count
HVAC System1 Heat pump heating cooling Heat Pump
System 1
Heat Pump
System 1 HVAC Fan 1
Air
Distribution
System 1
Setback New NA 1 1
HVAC - HEAT PUMPS
01 02 03 04 05 06 07 08 09 10 11
Name System Type Number of Units
Heating Cooling Zonally
Controlled
Compressor
Type HERS Verification
HSPF/COP Cap 47 Cap 17 SEER EER
Heat Pump System 1 Centra l split HP 1 9.5 60000 50000 16 11.7 Not Zonal Single
Speed
Heat Pump System
1-hers-htpump
HVAC HEAT PUMPS - HERS VERIFICATION
01 02 03 04 05 06 07 08 09
Name Verified Airflow Airflow Target Verified EER Verified SEER Verified Refrigerant
Charge Verified HSPF Verified Heating
Cap 47
Verified Heating
Cap 17
Heat Pump System
1-hers-htpump Required 350 Not Required Required No Yes Yes Yes
220-P010135096B-000-000-0000000-0000 2020-07-29 11:44:39 CalCERTS inc.
CERTIFICATE OF COMPLIANCE CF1R-PRF-01E
Project Name: Otis ADU Calculation Date/Time: 2020-07-29T11:40:21-07:00 (Page 9 of 11)
Calculation Description: Title 24 Analysis Input File Name: 0200524 Otis ADU.ribd19x
Registration Number: Registration Date/Time: HERS Provider:
CA Building Energy Efficiency Standards - 2019 Residential Compliance Report Version: 2019.1.108
Schema Version: rev 20200101
Report Generated: 2020-07-29 11:41:48
HVAC - DISTRIBUTION SYSTEMS
01 02 03 04 05 06 07 08 09 10 11 12
Duct Ins. R-value Duct Location Surface Area
Name Type Design Type Supply Return Supply Return Supply Return Bypass
Duct Duct Leakage HERS
Verification
Air Distribution
System 1
Conditioned
space-entirely Non-Verified R-6 R-6 Conditio
ned Zone
Conditio
ned Zone n/a n/a
No
Bypass
Duct
Sealed and
Tested
Air
Distribution
System
1-hers-dist
HVAC DISTRIBUTION - HERS VERIFICATION
01 02 03 04 05 06 07 08 09
Name Duct Leakage
Verification
Duct Leakage
Target (%)
Verified Duct
Location
Verified Duct
Design Buried Ducts Deeply Buried
Ducts
Low-leakage Air
Handler
Low Leakage
Ducts Entirely in
Conditioned
Space
Air Distribution
System 1-hers-dist Yes 5.0 Required Not Required Not Required Credit not taken Not Required No
HVAC - FAN SYSTEMS
01 02 03 04
Name Type Fan Power (Watts/CFM) Name
HVAC Fan 1 HVAC Fan 0.45 HVAC Fan 1-hers-fan
HVAC FAN SYSTEMS - HERS VERIFICATION
01 02 03
Name Verified Fan Watt Draw Required Fan Effica cy (Watts/CFM)
HVAC Fan 1-hers-fan Required 0.45
220-P010135096B-000-000-0000000-0000 2020-07-29 11:44:39 CalCERTS inc.
CERTIFICATE OF COMPLIANCE CF1R-PRF-01E
Project Name: Otis ADU Calculation Date/Time: 2020-07-29T11:40:21-07:00 (Page 10 of 11)
Calculation Description: Title 24 Analysis Input File Name: 0200524 Otis ADU.ribd19x
Registration Number: Registration Date/Time: HERS Provider:
CA Building Energy Efficiency Standards - 2019 Residential Compliance Report Version: 2019.1.108
Schema Version: rev 20200101
Report Generated: 2020-07-29 11:41:48
IAQ (INDOOR AIR QUALITY) FANS
01 02 03 04 05 06
Dwelling Unit IAQ CFM IAQ Watts/CFM IAQ Fan Type IAQ Recovery Effectiveness (%)
IAQ Recovery Effectiveness -
SREIAQ Recovery Effectiveness
- SRE
SFam IAQVentRpt 1-1 40 0.575 Balanced HRV 66 n/a
220-P010135096B-000-000-0000000-0000 2020-07-29 11:44:39 CalCERTS inc.
CERTIFICATE OF COMPLIANCE CF1R-PRF-01E
Project Name: Otis ADU Calculation Date/Time: 2020-07-29T11:40:21-07:00 (Page 11 of 11)
Calculation Description: Title 24 Analysis Input File Name: 0200524 Otis ADU.ribd19x
Registration Number: Registration Date/Time: HERS Provider:
CA Building Energy Efficiency Standards - 2019 Residential Compliance Report Version: 2019.1.108
Schema Version: rev 20200101
Report Generated: 2020-07-29 11:41:48
DOCUMENTATION AUTHOR'S DECLARATION STATEMENT
1. I certify that this Certificate of Compliance documentation is accurate and complete.
Documentation Author Name: Documentation Author Signature:
Company: Signature Date:
Address: CEA/ HERS Certification Identification (If applicable):
City/State/Zip: Phone:
RESPONSIBLE PERSON'S DECLARATION STATEMENT
I certify the following und er penalty of perjury, under the laws of the State of California:
1. I am eligible under Division 3 of the Business and Professions Code to accept responsibility for the building design identified on this Certificate of Compliance.
2. I certify that the energy features and performance specifications identified on this Certificate of Compliance conform to the req uirements of Title 24, Part 1 and Part 6 of the California Code of Regulations.
3. The building design features or system design features identified on this Certificate of Compliance are consistent with the information provided on other applicable compliance documents, worksheets,
calculations, plans and specifications submitted to the enforcement agency for approval with this building permit application.
Responsible Designer Name: Responsible Designer Signature:
Company: Date Signed:
Address: License:
City/State/Zip: Phone:
Easy to Verify
at CalCERTS.com
Adam Bailey
FRI Energy Consultants, LLC.
21 N. Harrison Ave,
Campbell, CA 95008
2020-07-29 11:44:39
408-866-1620
Adam Bailey
FRI Energy Consultants, LLC.
21 N. Harrison Ave,
Campbell, CA 95008
2020-07-29 11:44:39
N/A
408-866-1620
Digitally signed by CalCERTS. This digital signature is provided in order to secure the content of this registered document, and in no way implies
Registration Provider responsibility for the accuracy of the information.
220-P010135096B-000-000-0000000-0000 2020-07-29 11:44:39 CalCERTS inc.
2019 Low-Rise Residential Mandatory Measures Summary
NOTE: Low-rise residential buildings subject to the Energy Standards must comply with all applicable mandatory measures, regardless of the compliance approach
used. Review the respective section for more information. *Exceptions may apply.
(01/2020)
Building Envelope Measures:
§ 1 1 0.6(a)1 :
Air Leakage. Manufactured fenestration, exterior doors, and exterior pet doors must limit air leakage to 0.3 CFM per square foot or less
when tested per NFRC-400, ASTM E283 or AAMA/WDMA/CSA 101/I.S.2/A440-2011.*
§ 110.6(a)5: Labeling. Fenestration products and exterior doors must have a label meeting the requirements of § 1 0-1 1 1 (a).
§ 110.6(b):
Field fabricated exterior doors and fenestration products must use U-factors and solar heat gain coefficient (SHGC) values from Tables
110.6-A, 110.6-B, or JA4.5 for exterior doors. They must be caulked and/or weather-stripped.*
§ 110.7:
Air Leakage. All joints, penetrations, and other openings in the building envelope that are potential sources of air leakage must be caulked,
gasketed, or weather stripped.
§ 110.8(a):Insulation Certification by Manufacturers. Insulation must be certified by the Department of Consumer Affairs, Bureau of Household Goods
and Services (BHGS).
§ 110.8(g): Insulation Requirements for Heated Slab Floors. Heated slab floors must be insulated per the requirements of § 1 1 0.8(g ).
§ 110.8(i):
Roofing Products Solar Reflectance and Thermal Emittance. The thermal emittance and aged solar reflectance values of the roofing
material must meet the requirements of § 110.8(i) and be labeled per §10-113 when the installation of a cool roof is specified on the CF1R.
§ 110.8(j): Radiant Barrier. When required, radiant barriers must have an emittance of 0.05 or less and be certified to the Department of Consumer Affairs.
§ 150.0(a):
Ceiling and Rafter Roof Insulation. Minimum R-22 insulation in wood-frame ceiling; or the weighted average U-factor must not exceed 0.043.
Minimum R-19 or weighted average U-factor of 0.054 or less in a rafter roof alteration. Attic access doors must have permanently attached
insulation using adhesive or mechanical fasteners. The attic access must be gasketed to prevent air leakage. Insulation must be installed in
direct contact with a continuous roof or ceiling which is sealed to limit infiltration and exfiltration as specified in § 110.7, including but not limited
to placing insulation either above or below the roof deck or on top of a drywall ceiling.*
§ 150.0(b): Loose-fill Insulation. Loose fill insulation must meet the manufacturer’s required density for the labeled R-value.
§ 150.0(c):
Wall Insulation. Minimum R-13 insulation in 2x4 inch wood framing wall or have a U-factor of 0.102 or less, or R-20 in 2x6 inch wood framing or
have a U-factor of 0.071 or less. Opaque non-framed assemblies must have an overall assembly U-factor not exceeding 0.102. Masonry walls
must meet Tables 150.1-A or B.*
§ 150.0(d): Raised-floor Insulation. Minimum R-19 insulation in raised wood framed floor or 0.037 maximum U-factor.*
§ 150.0(f):
Slab Edge Insulation. Slab edge insulation must meet all of the following: have a water absorption rate, for the insulation material alone without
facings, no greater than 0.3 percent; have a water vapor permeance no greater than 2.0 perm per inch; be protected from physical damage and
UV light deterioration; and, when installed as part of a heated slab floor, meet the requirements of § 1 1 0.8(g).
§ 150.0(g)1:
Vapor Retarder. In climate zones 1 through 16, the earth floor of unvented crawl space must be covered with a Class I or Class II vapor
retarder. This requirement also applies to controlled ventilation crawl space for buildings complying with the exception to § 150.0(d).
§ 150.0(g)2:
Vapor Retarder. In climate zones 14 and 16, a Class I or Class II vapor retarder must be installed on the conditioned space side of all
insulation in all exterior walls, vented attics, and unvented attics with air-permeable insulation.
§ 150.0(q):
Fenestration Products. Fenestration, including skylights, separating conditioned space from unconditioned space or outdoors must have a
maximum U-factor of 0.58; or the weighted average U-factor of all fenestration must not exceed 0.58.*
Fireplaces, Decorative Gas Appliances, and Gas Log Measures:
§ 110.5(e) Pilot Light. Continuously burning pilot lights are not allowed for indoor and outdoor fireplaces.
§ 150.0(e)1: Closable Doors. Masonry or factory-built fireplaces must have a closable metal or glass door covering the entire opening of the firebox.
§ 150.0(e)2:
Combustion Intake. Masonry or factory-built fireplaces must have a combustion outside air intake, which is at least six square inches in area
and is equipped with a readily accessible, operable, and tight-fitting damper or combustion-air control device.*
§ 150.0(e)3: Flue Damper. Masonry or factory-built fireplaces must have a flue damper with a readily accessible control.*
Space Conditioning, Water Heating, and Plumbing System Measures:
§ 110.0-§ 110.3:
Certification. Heating, ventilation and air conditioning (HVAC) equipment, water heaters, showerheads, faucets, and all other regulated
appliances must be certified by the manufacturer to the California Energy Commission.*
§ 110.2(a): HVAC Efficiency. Equipment must meet the applicable efficiency requirements in Table 110.2-A through Table 110.2 -K.*
§ 110.2(b):
Controls for Heat Pumps with Supplementary Electric Resistance Heaters. Heat pumps with supplementary electric resistance heaters
must have controls that prevent supplementary heater operation when the heating load can be met by the heat pump alone; and in which the
cut-on temperature for compression heating is higher than the cut-on temperature for supplementary heating, and the cut-off temperature for
compression heating is higher than the cut-off temperature for supplementary heating.*
§ 110.2(c):
Thermostats. All heating or cooling systems not controlled by a central energy management control system (EMCS) must have a
setback thermostat.*
§ 110.3(c)4:
Water Heating Recirculation Loops Serving Multiple Dwelling Units. Water heating recirculation loops serving multiple dwelling units must
meet the air release valve, backflow prevention, pump priming, pump isolation valve, and recirculation loop connection requirements of
§ 110.3(c)4.
§ 110.3(c)6:
Isolation Valves. Instantaneous water heaters with an input rating greater than 6.8 kBtu per hour (2 kW) must have isolation valves with hose
bibbs or other fittings on both cold and hot water lines to allow for flushing the water heater when the valves are closed.
§ 110.5:
Pilot Lights. Continuously burning pilot lights are prohibited for natural gas: fan-type central furnaces; household cooking appliances (except
appliances without an electrical supply voltage connection with pilot lights that consume less than 150 Btu per hour ); and pool and spa heaters.*
§ 150.0(h)1:
Building Cooling and Heating Loads. Heating and/or cooling loads are calculated in accordance with the ASHRAE Handbook,
Equipment Volume, Applications Volume, and Fundamentals Volume; the SMACNA Residential Comfort System Installation Standards
Manual; or the ACCA Manual J using design conditions specified in § 150.0(h)2.
2019 Low-Rise Residential Mandatory Measures Summary
§ 150.0(h)3A: Clearances. Air conditioner and heat pump outdoor condensing units must have a clearance of at least five feet from the outlet of any dryer
t
§ 150.0(h)3B:
Liquid Line Drier. Air conditioners and heat pump systems must be equipped with liquid line filter driers if required, as specified by the
manufacturer’s instructions.
§ 150.0(j)1:
Storage Tank Insulation. Unfired hot water tanks, such as storage tanks and backup storage tanks for solar water-heating systems, must have
a minimum of R-12 external insulation or R-16 internal insulation where the internal insulation R-value is indicated on the exterior of the tank.
§ 150.0(j)2A:
Water Piping, Solar Water-heating System Piping, and Space Conditioning System Line Insulation. All domestic hot water piping must
be insulated as specified in Section 609.11 of the California Plumbing Code. In addition, the following piping conditions must have a minimum
insulation wall thickness of one inch or a minimum insulation R-value of 7.7: the first five feet of cold water pipes from the storage tank; all hot
water piping with a nominal diameter equal to or greater than 3/4 inch and less than one inch; all hot water piping with a nominal diameter less
than 3/4 inch that is: associated with a domestic hot water recirculation system, from the heating source to storage tank or between tanks,
buried below grade, and from the heating source to kitchen fixtures.*
§ 150.0(j)3:
Insulation Protection. Piping insulation must be protected from damage, including that due to sunlight, moisture, equipment maintenance, and
wind as required by Section 120.3(b). Insulation exposed to weather must be water retardant and protected from UV light (no adhesive tapes).
Insulation covering chilled water piping and refrigerant suction piping located outside the conditioned space must include, or be protected by, a
Class I or Class II vapor retarder. Pipe insulation buried below grade must be installed in a waterproof and non-crushable casing or sleeve.
§ 150.0(n)1:
Gas or Propane Water Heating Systems. Systems using gas or propane water heaters to serve individual dwelling units must include all of
the following: A dedicated 125 volt, 20 amp electrical receptacle connected to the electric panel with a 120/240 volt 3 conductor, 10 AWG
copper branch circuit, within three feet of the water heater without obstruction. Both ends of the unused conductor must be labeled with the
word “spare” and be electrically isolated. Have a reserved single pole circuit breaker space in the electrical panel adjacent to the circuit breaker
for the branch circuit and labeled with the words “Future 240V Use”; a Category III or IV vent, or a Type B vent with straight pipe between the
outside termination and the space where the water heater is installed; a condensate drain that is no more than two inches higher than the base
of the water heater, and allows natural draining without pump assistance; and a gas supply line with a capacity of at least 200,000 Btu per hour.
§ 150.0(n)2: Recirculating Loops. Recirculating loops serving multiple dwelling units must meet the requirements of § 110.3(c)5.
§ 150.0(n)3:
Solar Water-heating Systems. Solar water-heating systems and collectors must be certified and rated by the Solar Rating and Certification
Corporation (SRCC), the International Association of Plumbing and Mechanical Officials, Research and Testing (IAPMO R&T), or by a listing
agency that is approved by the Executive Director.
Ducts and Fans Measures:
§ 1 1 0.8(d)3:
Ducts. Insulation installed on an existing space-conditioning duct must comply with § 604.0 of the California Mechanical Code (CMC). If a
contractor installs the insulation, the contractor must certify to the customer, in writing, that the insulation meets this requirement.
§ 150.0(m)1:
CMC Compliance. All air-distribution system ducts and plenums must meet the requirements of the CMC §§ 601.0, 602.0, 603.0, 604.0, 605.0
and ANSI/SMACNA-006-2006 HVAC Duct Construction Standards Metal and Flexible 3rd Edition. Portions of supply-air and return-air ducts and
plenums must be insulated to a minimum installed level of R-6.0 or a minimum installed level of R-4.2 when ducts are entirely in conditioned
space as confirmed through field verification and diagnostic testing (RA3.1.4.3.8). Portions of the duct system completely exposed and
surrounded by directly conditioned space are not required to be insulated. Connections of metal ducts and inner core of flexible ducts must be
mechanically fastened. Openings must be sealed with mastic, tape, or other duct-closure system that meets the applicable requirements of UL
181, UL 181A, or UL 181B or aerosol sealant that meets the requirements of UL 723. If mastic or tape is used to seal openings greater than ¼
inch, the combination of mastic and either mesh or tape must be used. Building cavities, support platforms for air handlers, and plenums
designed or constructed with materials other than sealed sheet metal, duct board or flexible duct must not be used to convey conditioned air.
Building cavities and support platforms may contain ducts. Ducts installed in cavities and support platforms must not be compressed to cause
reductions in the cross-sectional area.*
§ 150.0(m)2:
Factory-Fabricated Duct Systems. Factory-fabricated duct systems must comply with applicable requirements for duct construction,
connections, and closures; joints and seams of duct systems and their components must not be sealed with cloth back rubber adhesive duct
tapes unless such tape is used in combination with mastic and draw bands.
§ 150.0(m)3:
Field-Fabricated Duct Systems. Field-fabricated duct systems must comply with applicable requirements for: pressure -sensitive tapes,
mastics, sealants, and other requirements specified for duct construction.
§ 150.0(m)7: Backdraft Damper. Fan systems that exchange air between the conditioned space and outdoors must have backdraft or automatic dampers.
§ 150.0(m)8:
Gravity Ventilation Dampers. Gravity ventilating systems serving conditioned space must have either automatic or readily accessible,
manually operated dampers in all openings to the outside, except combustion inlet and outlet air openings and elevator shaft vents.
§ 150.0(m)9:
Protection of Insulation. Insulation must be protected from damage, sunlight, moisture, equipment maintenance, and wind. Insulation exposed
to weather must be suitable for outdoor service. For example, protected by aluminum, sheet metal, painted canvas, or plastic cover. Cellular
foam insulation must be protected as above or painted with a coating that is water retardant and provides shielding from solar radiation.
§ 150.0(m)10: Porous Inner Core Flex Duct. Porous inner core flex ducts must have a non-porous layer between the inner core and outer vapor barrier.
§ 1 50.0(m)1 1 :
Duct System Sealing and Leakage Test. When space conditioning systems use forced air duct systems to supply conditioned air to an
occupiable space, the ducts must be sealed and duct leakage tested, as confirmed through field verification and diagnostic testing, in
accordance with § 1 50.0(m)1 1 and Reference Residential Appendix RA3.
§ 1 50.0(m)1 2:
Air Filtration. Space conditioning systems with ducts exceeding 10 feet and the supply side of ventilation systems must have MERV 13 or
equivalent filters. Filters for space conditioning systems must have a two inch depth or can be one inch if sized per Equation 150.0-A. Pressure
drops and labeling must meet the requirements in §1 50.0(m)1 2. Filters must be accessible for regular service.*
§ 150.0(m)13:
Space Conditioning System Airflow Rate and Fan Efficacy. Space conditioning systems that use ducts to supply cooling must have a hole
for the placement of a static pressure probe, or a permanently installed static pressure probe in the supply plenum. Airflow must be ≥ 350 CFM
per ton of nominal cooling capacity, and an air-handling unit fan efficacy ≤ 0.45 watts per CFM for gas furnace air handlers and ≤ 0.58 watts per
CFM for all others. Small duct high velocity systems must provide an airflow ≥ 250 CFM per ton of nominal cooling capacity, and an air-handling
unit fan efficacy ≤ 0.62 watts per CFM. Field verification testing is required in accordance with Reference Residential Appendix RA3.3.*
2019 Low-Rise Residential Mandatory Measures Summary
Requirements for Ventilation and Indoor Air Quality:
§ 1 50.0(o)1 :
Requirements for Ventilation and Indoor Air Quality. All dwelling units must meet the requirements of ASHRAE Standard 62.2, Ventilation
and Acceptable Indoor Air Quality in Residential Buildings subject to the amendments specified in § 1 50.0(o)1 .
§ 1 50.0(o)1 C:
Single Family Detached Dwelling Units. Single family detached dwelling units, and attached dwelling units not sharing ceilings or floors with
other dwelling units, occupiable spaces, public garages, or commercial spaces must have mechanical ventilation airflow provided at rates
determined by ASHRAE 62.2 Sections 4.1.1 and 4.1.2 and as specified in § 1 50.0(o)1 C.
§ 1 50.0(o)1 E:
Multifamily Attached Dwelling Units. Multifamily attached dwelling units must have mechanical ventilation airflow provided at rates in
accordance with Equation 150.0-B and must be either a balanced system or continuous supply or continuous exhaust system. If a balanced
system is not used, all units in the building must use the same system type and the dwelling-unit envelope leakage must be ≤ 0.3 CFM at 50 Pa
(0.2 inch water) per square foot of dwelling unit envelope surface area and verified in accordance with Reference Residential Appendix RA3.8.
§ 150.0(o)1F:
Multifamily Building Central Ventilation Systems. Central ventilation systems that serve multiple dwelling units must be balanced to provide
ventilation airflow for each dwelling unit served at a rate equal to or greater than the rate specified by Equation 150.0-B. All unit airflows must be
within 20 percent of the unit with the lowest airflow rate as it relates to the individual unit’s minimum required airflow rate needed for compliance.
§ 1 50.0(o)1 G: Kitchen Range Hoods. Kitchen range hoods must be rated for sound in accordance with Section 7.2 of ASHRAE 62.2.
§ 150.0(o)2:
Field Verification and Diagnostic Testing. Dwelling unit ventilation airflow must be verified in accordance with Reference Residential
Appendix RA3.7. A kitchen range hood must be verified in accordance with Reference Residential Appendix RA3.7.4.3 to confirm it is
rated by HVI to comply with the airflow rates and sound requirements as specified in Section 5 and 7.2 of ASHRAE 62.2.
Pool and Spa Systems and Equipment Measures:
§ 110.4(a):
Certification by Manufacturers. Any pool or spa heating system or equipment must be certified to have all of the following: a thermal efficiency
that complies with the Appliance Efficiency Regulations; an on-off switch mounted outside of the heater that allows shutting off the heater
without adjusting the thermostat setting; a permanent weatherproof plate or card with operating instructions; and must not use electric
resistance heating.*
§ 1 1 0.4(b)1 :
Piping. Any pool or spa heating system or equipment must be installed with at least 36 inches of pipe between the filter and the heater, or
dedicated suction and return lines, or built-in or built-up connections to allow for future solar heating.
§ 110.4(b)2: Covers. Outdoor pools or spas that have a heat pump or gas heater must have a cover.
§ 110.4(b)3:
Directional Inlets and Time Switches for Pools. Pools must have directional inlets that adequately mix the pool water, and a time switch that
will allow all pumps to be set or programmed to run only during off-peak electric demand periods.
§ 110.5: Pilot Light. Natural gas pool and spa heaters must not have a continuously burning pilot light.
§ 150.0(p):
Pool Systems and Equipment Installation. Residential pool systems or equipment must meet the specified requirements for pump sizing, flow
rate, piping, filters, and valves.*
Lighting Measures:
§ 110.9:
Lighting Controls and Components. All lighting control devices and systems, ballasts, and luminaires must meet the applicable requirements
of § 110.9.*
§ 150.0(k)1A: Luminaire Efficacy. All installed luminaires must meet the requirements in Table 150.0-A.
§ 150.0(k)1B:
Blank Electrical Boxes. The number of electrical boxes that are more than five feet above the finished floor and do not contain a luminaire or
other device must be no greater than the number of bedrooms. These electrical boxes must be served by a dimmer, vacancy sensor control, or
fan speed control.
§ 150.0(k)1C:Recessed Downlight Luminaires in Ceilings. Luminaires recessed into ceilings must meet all of the requirements for: insulation contact (IC)
labeling; air leakage; sealing; maintenance; and socket and light source as described in § 150.0(k)1C.
§ 150.0(k)1D:
Electronic Ballasts for Fluorescent Lamps. Ballasts for fluorescent lamps rated 13 watts or greater must be electronic and must have an
output frequency no less than 20 kHz.
§ 150.0(k)1E:Night Lights, Step Lights, and Path Lights. Night lights, step lights and path lights are not required to comply with Table 150.0-A or be
controlled by vacancy sensors provided they are rated to consume no more than 5 watts of power and emit no more than 150 lumens.
§ 150.0(k)1F:
Lighting Integral to Exhaust Fans. Lighting integral to exhaust fans (except when installed by the manufacturer in kitchen exhaust hoods)
must meet the applicable requirements of § 150.0(k).*
§ 150.0(k)1G: Screw based luminaires. Screw based luminaires must contain lamps that comply with Reference Joint Appendix JA8.*
§ 150.0(k)1H:Light Sources in Enclosed or Recessed Luminaires. Lamps and other separable light sources that are not compliant with the JA8 elevated
temperature requirements, including marking requirements, must not be installed in enclosed or recessed luminaires.
§ 150.0(k)1I:
Light Sources in Drawers, Cabinets, and Linen Closets. Light sources internal to drawers, cabinetry or linen closets are not required to
comply with Table 150.0-A or be controlled by vacancy sensors provided that they are rated to consume no more than 5 watts of power, emit no
more than 150 lumens, and are equipped with controls that automatically turn the lighting off when the drawer, cabinet or linen closet is closed.
§ 150.0(k)2A: Interior Switches and Controls. All forward phase cut dimmers used with LED light sources must comply with NEMA SSL 7A.
§ 150.0(k)2B: Interior Switches and Controls. Exhaust fans must be controlled separately from lighting systems.*
§ 150.0(k)2C:
Interior Switches and Controls. Lighting must have readily accessible wall-mounted controls that allow the lighting to be manually
turned ON and OFF.*
§ 150.0(k)2D: Interior Switches and Controls. Controls and equipment must be installed in accordance with manufacturer’s instructions.
§ 150.0(k)2E:
Interior Switches and Controls. Controls must not bypass a dimmer, occupant sensor, or vacancy sensor function if the control is installed to
comply with § 150.0(k).
§ 150.0(k)2F: Interior Switches and Controls. Lighting controls must comply with the applicable requirements of § 1 1 0.9.
2019 Low-Rise Residential Mandatory Measures Summary
§ 150.0(k)2G:
Interior Switches and Controls. An energy management control system (EMCS) may be used to comply with control requirements if it:
provides functionality of the specified control according to § 110.9; meets the Installation Certificate requirements of § 130.4; meets the
EMCS requirements of § 130.0(e); and meets all other requirements in § 150.0(k)2.
§ 150.0(k)2H:
Interior Switches and Controls. A multiscene programmable controller may be used to comply with dimmer requirements in § 150.0(k) if it
provides the functionality of a dimmer according to § 110.9, and complies with all other applicable requirements in § 150.0(k)2.
§ 150.0(k)2I:
Interior Switches and Controls. In bathrooms, garages, laundry rooms, and utility rooms, at least one luminaire in each of these spaces must
be controlled by an occupant sensor or a vacancy sensor providing automatic-off functionality. If an occupant sensor is installed, it must be
initially configured to manual-on operation using the manual control required under Section 150.0(k)2C.
§ 150.0(k)2J:
Interior Switches and Controls. Luminaires that are or contain light sources that meet Reference Joint Appendix JA8 requirements for
dimming, and that are not controlled by occupancy or vacancy sensors, must have dimming controls.*
§ 150.0(k)2K: Interior Switches and Controls. Under cabinet lighting must be controlled separately from ceiling -installed lighting systems.
§ 150.0(k)3A:
Residential Outdoor Lighting. For single-family residential buildings, outdoor lighting permanently mounted to a residential building, or to other
buildings on the same lot, must meet the requirement in item § 150.0(k)3Ai (ON and OFF switch) and the requirements in either
§ 150.0(k)3Aii (photocell and either a motion sensor or automatic time switch control) or § 150.0(k)3Aiii (astronomical time clock), or an EMCS.
§ 150.0(k)3B:
Residential Outdoor Lighting. For low-rise residential buildings with four or more dwelling units, outdoor lighting for private patios, entrances,
balconies, and porches; and residential parking lots and carports with less than eight vehicles per site must comply with either § 150.0(k)3A or
with the applicable requirements in Sections 110.9, 130.0, 130.2, 130.4, 140.7 and 141.0.
§ 150.0(k)3C:
Residential Outdoor Lighting. For low-rise residential buildings with four or more dwelling units, any outdoor lighting for residential parking lots
or carports with a total of eight or more vehicles per site and any outdoor lighting not regulated by § 150.0(k)3B or § 150.0(k)3D must comply with
the applicable requirements in Sections 110.9, 130.0, 130.2, 130.4, 140.7 and 141.0.
§ 150.0(k)4:
Internally illuminated address signs. Internally illuminated address signs must comply with § 140.8; or must consume no more than 5 watts of
power as determined according to § 130.0(c).
§ 150.0(k)5:
Residential Garages for Eight or More Vehicles. Lighting for residential parking garages for eight or more vehicles must comply with the
applicable requirements for nonresidential garages in Sections 110.9, 130.0, 130.1, 130.4, 140.6, and 141.0.
§ 150.0(k)6A:
Interior Common Areas of Low-rise Multifamily Residential Buildings. In a low-rise multifamily residential building where the total interior
common area in a single building equals 20 percent or less of the floor area, permanently installed lighting for the interior common areas in that
building must be comply with Table 150.0-A and be controlled by an occupant sensor.
§ 150.0(k)6B:
Interior Common Areas of Low-rise Multifamily Residential Buildings. In a low-rise multifamily residential building where the total interior
common area in a single building equals more than 20 percent of the floor area, permanently installed lighting for the interior common areas in
that building must:
i. Comply with the applicable requirements in Sections 110.9, 130.0, 130.1, 140.6 and 141.0; and
ii. Lighting installed in corridors and stairwells must be controlled by occupant sensors that reduce the lighting power in each space by at least
50 percent. The occupant sensors must be capable of turning the light fully on and off from all designed paths of ingress and egress.
Solar Ready Buildings:
§ 1 1 0.1 0(a)1 :
Single Family Residences. Single family residences located in subdivisions with 10 or more single family residences and where the
application for a tentative subdivision map for the residences has been deemed complete and approved by the enforcement agency, which
do not have a photovoltaic system installed, must comply with the requirements of § 1 1 0.1 0(b) through § 1 1 0.1 0(e).
§ 1 1 0.1 0(a)2: Low-rise Multifamily Buildings. Low-rise multi-family buildings that do not have a photovoltaic system installed must comply with the
requirements of § 1 1 0.1 0(b) through § 1 1 0.1 0(d ).
§ 1 1 0.1 0(b)1 :
Minimum Solar Zone Area. The solar zone must have a minimum total area as described below. The solar zone must comply with access,
pathway, smoke ventilation, and spacing requirements as specified in Title 24, Part 9 or other parts of Title 24 or in any requirements adopted by
a local jurisdiction. The solar zone total area must be comprised of areas that have no dimension less than 5 feet and are no less than 80
square feet each for buildings with roof areas less than or equal to 10,000 square feet or no less than 160 square feet each for buildings with
roof areas greater than 10,000 square feet. For single family residences, the solar zone must be located on the roof or overhang of the building
and have a total area no less than 250 square feet. For low-rise multi-family buildings the solar zone must be located on the roof or overhang of
the building, or on the roof or overhang of another structure located within 250 feet of the building, or on covered parking installed with the
building project, and have a total area no less than 15 percent of the total roof area of the building excluding any skylight area. The solar zone
requirement is applicable to the entire building, including mixed occupancy.*
§ 1 1 0.1 0(b)2: Azimuth. All sections of the solar zone located on steep-sloped roofs must be oriented between 90 degrees and 300 degrees of true north.
§ 1 1 0.1 0(b)3A:
Shading. The solar zone must not contain any obstructions, including but not limited to: vents, chimneys, architectural features, and roof
mounted equipment.*
§ 1 1 0.1 0(b)3B:
Shading. Any obstruction located on the roof or any other part of the building that projects above a solar zone must be located at least twice the
distance, measured in the horizontal plane, of the height difference between the highest point of the obstruction and the horizontal projection of
the nearest point of the solar zone, measured in the vertical plane.*
§ 1 1 0.1 0(b)4:
Structural Design Loads on Construction Documents. For areas of the roof designated as a solar zone, the structural design loads for roof
dead load and roof live load must be clearly indicated on the construction documents.
§ 1 1 0.1 0(c):
Interconnection Pathways. The construction documents must indicate: a location reserved for inverters and metering equipment and a
pathway reserved for routing of conduit from the solar zone to the point of interconnection with the electrical service; and for single family
residences and central water-heating systems, a pathway reserved for routing plumbing from the solar zone to the water-heating system.
§ 1 1 0.1 0(d ):
Documentation. A copy of the construction documents or a comparable document indicating the information from § 1 1 0.1 0(b) through
§ 1 1 0.1 0(c) must be provided to the occupant.
§ 1 1 0.1 0(e)1 : Main Electrical Service Panel. The main electrical service panel must have a minimum busbar rating of 200 amps.
§ 1 1 0.1 0(e)2:
Main Electrical Service Panel. The main electrical service panel must have a reserved space to allow for the installation of a double pole circuit
breaker for a future solar electric installation. The reserved space must be permanently marked as “For Future Solar Electric”.
HVAC SYSTEM HEATING AND COOLING LOADS SUMMARY
Project Name Date
System Name Floor Area
ENGINEERING CHECKS SYSTEM LOAD
Number of Systems COIL COOLING PEAK COIL HTG. PEAK
Heating System CFM Sensible Latent CFM Sensible
Output per System Total Room Loads
Total Output (Btuh) Return Vented Lighting
Output (Btuh/sqft) Return Air Ducts
Cooling System Return Fan
Output per System Ventilation
Total Output (Btuh) Supply Fan
Total Output (Tons) Supply Air Ducts
Total Output (Btuh/sqft)
Total Output (sqft/Ton) TOTAL SYSTEM LOAD
Air System
CFM per System HVAC EQUIPMENT SELECTION
Airflow (cfm)
Airflow (cfm/sqft)
Airflow (cfm/Ton)
Outside Air (%) Total Adjusted System Output
Outside Air (cfm/sqft) (Adjusted for Peak Design conditions)
Note: values above given at ARI conditions TIME OF SYSTEM PEAK
HEATING SYSTEM PSYCHROMETRICS (Airstream Temperatures at Time of Heating Peak)
COOLING SYSTEM PSYCHROMETRICS (Airstream Temperatures at Time of Cooling Peak)
Otis ADU 7/29/2020
HVAC System 732
1
60,000
60,000
82.0
1
1
0.0
0.0
8,784,000.0
0
0
0.00
0.0
0.0%
0.00
304
6,713
0
0
0
0
0
689
12,399
0
0
0 0
689
0
304
0 1
352 7,322
1
39,541
0 39,541
High Efficiency Heat Pump
Aug 3 PM Jan 1 AM
324 352 327
28 ºF
Outside Air
0 cfm
66 ºF 105 ºF
103 ºF
66 ºF 68 ºF
88 / 67 ºF 76 / 62 ºF 55 / 54 ºF
56 / 54 ºF
75 / 62 ºF76 / 62 ºF
0 cfm
Outside Air
46.4%
Heating Coil
13,777
Cooling Coil