CALGreen · California Green Building Standards Code (CALGreen)
How must health facilities be sited and oriented?
For health facilities CALGreen prefers you lay out the building with its long sides facing north–south (when the site allows) and use orientation plus landscape features to protect the building from thermal loss, drafts and wind‑driven debris; commissioning must document these measures (see § A6.106.9 and cross‑references).
Last reviewed: July 6, 2026
What the code requires — 2–4 sentences
When site conditions allow, a health facility must be oriented so its long sides face north and south and be sited/landscaped to protect the building envelope from thermal loss, drafts, and wind‑driven materials. These are the prescriptive planning rules in § A6.106.9. The code also directs designers to “locate, orient and shade” buildings per § A6.106.11, and the commissioning section references that requirement for verification § A6.204.6.
Plain English: where you can, lay the building out with its long faces north–south and use orientation plus landscaping (windbreaks, shade) to reduce heat loss, drafts and damage from windblown dust/snow/leaves.
Requirements in detail
Core prescriptive items
- Building orientation — Orient the building with the long sides facing north and south when site and location permit (§ A6.106.9).
- Wind & envelope protection — Use building orientation and landscape features to protect the building from thermal loss, drafts and degradation caused by wind and wind‑driven materials (dust, sand, snow, leaves) (§ A6.106.9).
- Shading / siting reference — The code requires buildings to be located, oriented and shaded as called out in § A6.106.11; commissioning and other sections reference that requirement (see § A6.204.6). Note: the full text of § A6.106.11 was not present in the files provided, but its existence and cross‑references are explicit.
Decision‑relevant dimensions and values
| Design dimension / decision | What the code requires or directs | Code Reference |
|---|---|---|
| Preferred orientation | Long sides of the building face north–south when site permits | § A6.106.9 |
| Wind protection strategy | Use orientation plus landscape features (windbreaks, berms, planting) to reduce thermal loss, drafts and protect envelope from wind‑driven materials | § A6.106.9 |
| Shading / siting details | Must locate, orient and shade building consistent with § A6.106.11 (text not available in provided files) | § A6.106.11 (referenced by § A6.204.6) |
| Commissioning verification | Building orientation/shading must be considered in commissioning requirements (documented/verifiable) | § A6.204.6 |
| Tools / calculation | Calculations for sun/shade may use the Solar‑2 tool (note in A6.106.9) | § A6.106.9 |
Notes on terms and method
- “When site and location permit” is a qualifier in § A6.106.9 — the north/south long‑side preference is conditional on practical feasibility.
- The code explicitly connects siting/orientation/shading to energy and envelope performance; commissioning is expected to verify this (see § A6.204.6).
Exceptions & special cases
- The prescriptive orientation requirement in § A6.106.9 is qualified by “When site and location permit” (i.e., not absolute). The code text in the provided files includes no additional exceptions or numeric exemptions for A6.106.9.
- The full text of § A6.106.11 (the shading/location detail the code refers to) was not included in the retrieved files; therefore any specific numeric thresholds, spacing, or dimensional exceptions contained in that section could not be confirmed here. Where the code cross‑references § A6.106.11 (for example § A6.204.6), it assumes designers will follow whatever criteria are set there; but I cannot cite or summarize those criteria because the section text was not available in the provided documents.
Common mistakes
- Assuming north–south long‑side orientation is mandatory in all cases. The rule in § A6.106.9 is conditional — it applies “when site and location permit.”
- Treating orientation alone as sufficient. The code requires both orientation and landscape/building features to protect the envelope from wind and wind‑driven materials (dust, sand, snow, leaves) — don’t skip site design measures. § A6.106.9.
- Missing commissioning checks. Orientation/shading are tied into commissioning documentation and verification (§ A6.204.6). If commissioning documentation neglects orientation/shade strategies it can leave the project noncompliant.
- Assuming numeric shading clearances or specific tree distances without checking § A6.106.11 — that section was referenced by the code but its detailed text was not available in the supplied files, so do not invent those details.
Worked example — concrete scenario
Scenario: a single‑story clinic building, rectangle 120 ft (east–west) × 60 ft (north–south), on an otherwise open lot in a moderate‑wind coastal location.
Preferred orientation per § A6.106.9: rotate the building so the 120‑ft long sides run north–south (so the 120‑ft sides face north and south). If the existing lot orientation allows this, you satisfy the long‑side north/south preference. § A6.106.9.
Wind and envelope protection: because the site is coastal (windy and salt/dust‑laden), provide landscape windbreaks (rows of trees/shrubs) on the prevailing wind side (typically the west/northwest). Use low walls or berms where planting is impractical to reduce wind speeds hitting the envelope. This implements the second clause in § A6.106.9 to “protect the building from thermal loss, drafts and degradation ... with building orientation and landscape features.”
Shading/siting verification: document the orientation decision and the shading/windbreak strategy in the Owner’s Project Requirements and commissioning plan so the Commissioning Authority (CxA) can verify it during commissioning per § A6.204.4 and the orientation/shading reference in § A6.204.6. (Note: specific shading dimensions from § A6.106.11 — if required — were not available in the supplied text and should be checked in the definitive code.)
Result: the project demonstrates the north‑south orientation (when feasible), applies landscape wind protection, and documents the measures for commissioning — meeting the intent and prescriptive items shown in the available CALGreen text.
Related provisions
- § A6.106.9 — Building orientation (long sides north/south; protect from wind/wind‑driven materials).
- § A6.204.6 — Building orientation and shading: cross‑reference requiring locating/orienting/shading per § A6.106.11 and inclusion in commissioning.
- Commissioning requirements and documentation that reference orientation/shading: § A6.204.4 and related subsections (OPR, BOD, commissioning plan, commissioning report).
Code references
Grounded in the retrieved California Green Building Standards Code (CALGreen) — click a citation to read the verbatim passage:
CALGreen § 1-1 High relevance — show source text
2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A6.1-1
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
APPENDIX A6.1-2 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
A6 VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]
DIVISION A6.1 – SITE PLANNING AND DESIGN
SECTION A6.106—SITE DEVELOPMENT
A6.106.9 Building orientation. Locate and orient the building as follows:
- When site and location permit, orient the building with the long sides facing north and south.
- Protect the building from thermal loss, drafts and degradation of the building envelope caused by wind and wind-driven materials such as dust, sand, snow and leaves, with building orientation and landscape features. Note: For information on sun angles and shading, visit: http://www2.aud.ucla.edu/energy-design-tools/.
Calculations may be made using the Solar-2 tool.
DIVISION A6.2 – ENERGY EFFICIENCY
SECTION A6.202—DEFINITIONS
A6.202.1 Definitions. The following words and terms shall, for the purposes of this chapter and as used elsewhere in this code, have the meanings shown herein.
ENERGY STAR. A joint program of the US Environmental Protection Agency and the US Department of Energy. ENERGY STAR is a voluntary program designed to identify and promote energy-efficient products and practices.
SECTION A6.203—PERFORMANCE APPROACH
A6.203.2 Energy performance. It is the intent of this code to encourage green buildings to achieve exemplary performance in the area of energy efficiency.
A6.203.2.1 CALGreen Tier 1. [OSHPD 1] To achieve CALGreen [Tier 1, buildings must comply with the latest edition of “Savings By](http://www.energysoft.com/ep/ 2007SBDHProcedures.pdf) Design, Healthcare Modeling Procedures” found online at http://www.energysoft.com/ep/ 2007SBDHProcedures.pdf.
A6.203.2.2 CALGreen Tier 2. [OSHPD 1] To achieve CALGreen Tier 2, buildings must exceed the latest edition of “Savings By Design, Healthcare Modeling Procedures” by a minimum of 15 percent.
SECTION A6.204—PRESCRIPTIVE APPROACH
A6.204.1 ENERGY STAR equipment and appliances. All equipment and appliances provided by the builder shall be ENERGY STAR labeled if ENERGY STAR is applicable to that equipment or appliance.
A6.204.4 Commissioning. [OSHPD 1 & 4] Building commissioning shall be included in the design and construction processes of the building project to verify that the building’s energy related systems are installed, calibrated and perform according to the owner’s project requirements, basis of design and construction documents.
The owner and designer shall designate an individual as the Commissioning Authority (CxA) to lead, review and oversee the completion of the commissioning process activities. The owner shall document the Owner’s Project Requirements (OPR).
CALGreen § 106.9 High relevance — show source text
FEATURE OR MEASURE COMPLIANCE LEVELS Col3 Col4 NOTES FEATURE OR MEASURE Mandatory
CALGreenVOLUNTARY
CALGreenVOLUNTARY
CALGreenVOLUNTARY
CALGreenFEATURE OR MEASURE Mandatory
CALGreenTier 1 Tier 2 Tier 2 DIVISION A6.1 – PLANNING AND DESIGN SECTION Site Development SECTION Site Development SECTION Site Development SECTION Site Development SECTION Site Development **A6.106.9 Building orientation.**Locate and orient the building as follows:
1. When site and location permit, orient the building with the long sides facing north and
south.
2. Protect the building from thermal loss, drafts and degradation of the building envelope
caused by wind and wind-driven materials such as dust. DIVISION A6.2 – ENERGY EFFICIENCY SECTION A6.203 Performance Measures SECTION A6.203 Performance Measures SECTION A6.203 Performance Measures SECTION A6.203 Performance Measures SECTION A6.203 Performance Measures A6.203.1 Energy performance. [OSHPD 1]
**A6.203.1.1 CALGreen Tier 1. [OSHPD 1]**Buildings must comply with the latest edition of
“Savings By Design, Healthcare Modeling Procedures.”
A.5.203.1.2 CALGreen Tier 2. [OSHPD 1] Buildings must exceed the latest edition of “Savings
By Design, Healthcare Modeling Procedures” by 15 percent. SECTION A6.204 Prescriptive Measures **A6.204.1 ENERGY STAR equipment and appliances.**All equipment and appliances provided
by the builder shall be ENERGY STAR labeled if ENERGY STAR is applicable to that equipment
or appliance. A6.204.4 Commissioning. Building commissioning for all building systems covered by T24,
Part 6, process systems and renewable energy systems shall be included in the design and
construction processes of the building project. Commissioning requirements shall include as
a minimum items listed in Section A6.204.4.
**A6.204.4.1 Owner’s Project Requirements (OPR).**Documented before the design phase of
the project begins the OPR shall include items listed in Section A6.204.4.
**A6.204.4.2 Basis of Design (BOD).**A written explanation of how the design of the building
systems meets the OPR shall be completed at the design phase of the building project and
updated periodically to cover the systems listed in Section A6.204.4.2.
**A6.204.4.3 Commissioning plan.CALGreen § 602.1 High relevance — show source text
VOLUNTARY MEASURES. . . . . . . . . . . . . . . . . APPENDIX A5-3
A5.1 Planning and Design . . . . . . . . . . . . . . . . . APPENDIX A5-3 A5.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . APPENDIX A5-13 A5.3 Water Efficiency and Conservation . . . APPENDIX A5-19 A5.4 Material Conservation and Resource Efficiency . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A5-25 A5.5 Environmental Quality . . . . . . . . . . . . . . APPENDIX A5-35 A5.6 Voluntary Tiers . . . . . . . . . . . . . . . . . . . . . APPENDIX A5-41 A5.601 CALGren Tier 1 and Tier 2. . . . . . . . . . APPENDIX A5-41
A5.602 CALGreen Verification Guidelines Mandatory Measures Checklist . . . . . . . . . . . . . . . APPENDIX A5-44
A5.602.1 CALGreen Verification Guidelines
Tier 1 Checklist . . . . . . . . . . . . . . . . . APPENDIX A5-48
A5.602.2 CALGreen Verification Guidelines
Tier 2 Checklist . . . . . . . . . . . . . . . . . APPENDIX A5-55
APPENDIX A6 VOLUNTARY STANDARDS FOR HEALTH
FACILITIES [OSHPD 1, 2 & 4] . . . . . . . . . . . APPENDIX A6.1-3 A6.1 Site Planning and Design . . . . . . . . . . . APPENDIX A6.1-3 A6.2 Energy Efficiency . . . . . . . . . . . . . . . . . . APPENDIX A6.1-3 A6.4 Material Conservation and Resource Efficiency . . . . . . . . . . . . . APPENDIX A6.1-32 A6.5 Environmental Quality . . . . . . . . . . . . APPENDIX A6.1-33
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INDEX-1
HISTORY NOTE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HIST-1
2025 CALIFORNIA GREEN BUILDING STANDARDS CODE vii
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viii 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE
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CALIFORNIA GREEN BUILDING STANDARDS CODE – MATRIX ADOPTION TABLE
CHAPTER 1 – ADMINISTRATION
(Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)
|Adopting
CALGreen § 0.70 High relevance — show source text
Spans are calculated assuming the top of the header or girder is laterally braced by perpendicular framing. Where the top of the header or girder is not laterally braced (for
example, cripple studs bearing on the header), tabulated spans for headers consisting of 2 × 8, 2 × 10, or 2 × 12 sizes shall be multiplied by 0.70 or the header or girder shall
be designed.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
a. Spans are given in feet and inches.
b. Spans are based on minimum design properties for No. 2 grade lumber of Douglas fir-larch, hem-fir, Southern pine and spruce-pine fir.
c._ Building_ width is measured perpendicular to the ridge. For widths between those shown, spans are permitted to be interpolated.
d. NJ = Number of jack studs required to support each end. Where the number of required jack studs equals one, the header is permitted to be supported by an_approved_ fram-
ing anchor attached to the full-height wall stud and to the header.
e. Spans are calculated assuming the top of the header or girder is laterally braced by perpendicular framing. Where the top of the header or girder is not laterally braced (for
example, cripple studs bearing on the header), tabulated spans for headers consisting of 2 × 8, 2 × 10, or 2 × 12 sizes shall be multiplied by 0.70 or the header or girder shall
be designed.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
a. Spans are given in feet and inches.
b. Spans are based on minimum design properties for No. 2 grade lumber of Douglas fir-larch, hem-fir, Southern pine and spruce-pine fir.
c._ Building_ width is measured perpendicular to the ridge. For widths between those shown, spans are permitted to be interpolated.
d. NJ = Number of jack studs required to support each end. Where the number of required jack studs equals one, the header is permitted to be supported by an_approved_ fram-
ing anchor attached to the full-height wall stud and to the header.
e. Spans are calculated assuming the top of the header or girder is laterally braced by perpendicular framing. Where the top of the header or girder is not laterally braced (for
example, cripple studs bearing on the header), tabulated spans for headers consisting of 2 × 8, 2 × 10, or 2 × 12 sizes shall be multiplied by 0.70 or the header or girder shall
be designed.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
a. Spans are given in feet and inches.
b. Spans are based on minimum design properties for No. 2 grade lumber of Douglas fir-larch, hem-fir, Southern pine and spruce-pine fir.
c._ Building_ width is measured perpendicular to the ridge. For widths between those shown, spans are permitted to be interpolated.
d. NJ = Number of jack studs required to support each end. Where the number of required jack studs equals one, the header is permitted to be supported by an_approved_ fram-
ing anchor attached to the full-height wall stud and to the header.
e.CALGreen § 106.9 High relevance — show source text
Documentation Author's / Responsible Designer's Declaration Statement
Check the appropriate box(es) for the list below.
□ Mandatory: I attest that the mandatory provisions checklist is accurate and complete.
□ Tier 2 compliant: I attest that the total number of voluntary measures selected meet or exceed the total number required
to achieve Tier 2 compliance.
□ Partial Tier 2 compliant: I attest that the total number of voluntary measures selected do not meet the total number
required to achieve Tier 2 compliance; however, partial Tier 2 compliance has been achieved.Col2 Signature:Company:Date:Address:License:City/State/Zip:Phone:2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A5-61
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
APPENDIX A5-62 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
CALIFORNIA GREEN BUILDING STANDARDS CODE – MATRIX ADOPTION TABLE APPENDIX A6—VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]
The following sections are relocated from the voluntary appendices into one appendix to assist code users in the planning, design and construction of environmentally sustainable medical facilities under the authority of the Office of Statewide Health Planning and Development specified in Chapter 1 of this code.
Adopting agency BSC BSC-
CGSFM HCD Col6 Col7 DSA Col9 OSHPD Col11 Col12 Col13 Col14 Col15 BSCC DPH AGR DWR CEC CA SL SLC Adopting agency BSC BSC-
CGSFM 1 2 1/AC AC SS 1 1R 2 3 4 5 5 5 5 5 5 5 5 5 Adopt entire CA chapter Adopt entire chapter as
amended (amended
sections listed below)X X X Adopt only those sections
that are listed belowChapter/Section A6.106.9 X X X A6.203 X A6.505.4.5.1 X X X 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A6.1-1
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
CALGreen § 504.8.5.2 High relevance — show source text
A6.504.8.5.2 Documentation. Verification of compliance with this section shall be provided as requested by the enforcing agency. Documentation shall include at least one of the following:
- Product certifications and specifications.
- Chain of custody certifications.
- Other methods acceptable to the enforcing agency.
A6.504.9 Environmental tobacco smoke (ETS) control. [OSHPD 1, 2 & 4] Where outdoor areas are provided for smoking, prohibit smoking within 25 feet of building entries, outdoor air intakes and operable windows and within the building, if not already prohibited by other laws or regulations, or as enforced by ordinances, regulations or policies of any city, county, city and county, California Community College, campus of the California State University or campus of the University of California, whichever are more stringent. When ordinances, regulations or policies are not in place, post signage to inform building occupants of the prohibitions.
SECTION A6.505 [OSHPD 1, 2 & 4]—INDOOR MOISTURE CONTROL
A6.505.2 Indoor moisture control. Buildings shall meet or exceed the provisions of California Building Code, CCR, Title 24, Part 2, Sections 1203 and Chapter 14.
APPENDIX A6.1-36 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
APPENDIX A6.1 — VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]
NONRESIDENTIAL OCCUPANCIES APPLICATION CHECKLIST [OSHPD 1, 2 and 4]
FEATURE OR MEASURE COMPLIANCE LEVELS Col3 Col4 NOTES FEATURE OR MEASURE Mandatory
CALGreenVOLUNTARY
CALGreenVOLUNTARY
CALGreenVOLUNTARY
CALGreenFEATURE OR MEASURE Mandatory
CALGreenTier 1 Tier 2 Tier 2 DIVISION A6.1 – PLANNING AND DESIGN SECTION Site Development SECTION Site Development SECTION Site Development SECTION Site Development SECTION Site Development **A6.106.9 Building orientation.**Locate and orient the building as follows:
1. When site and location permit, orient the building with the long sides facing north and
south.
2. Protect the building from thermal loss, drafts and degradation of the building envelope
caused by wind and wind-driven materials such as dust. DIVISION A6.2 – ENERGY EFFICIENCY SECTION A6.203 Performance Measures SECTION A6.203 Performance Measures SECTION A6.203 Performance Measures SECTION A6.203 Performance Measures SECTION A6.203 Performance Measures A6.203.1 Energy performance. [OSHPD 1]
**A6.203.1.1 CALGreen Tier 1.CGBSC § 2025 High relevance — show source text
||||| |Total number of Measures required for Tier 2|Total number of Measures required for Tier 2|Total number of Measures required for Tier 2|Total number of Measures required for Tier 2|25||||| |Total number of Measures selected|Total number of Measures selected|Total number of Measures selected|Total number of Measures selected||||||
APPENDIX A5-60 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
APPENDIX A5 — NONRESIDENTIAL VOLUNTARY MEASURES
Documentation Author's / Responsible Designer's Declaration Statement
Check the appropriate box(es) for the list below.
□ Mandatory: I attest that the mandatory provisions checklist is accurate and complete.
□ Tier 2 compliant: I attest that the total number of voluntary measures selected meet or exceed the total number required
to achieve Tier 2 compliance.
□ Partial Tier 2 compliant: I attest that the total number of voluntary measures selected do not meet the total number
required to achieve Tier 2 compliance; however, partial Tier 2 compliance has been achieved.Col2 Signature:Company:Date:Address:License:City/State/Zip:Phone:2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A5-61
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
APPENDIX A5-62 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
CALIFORNIA GREEN BUILDING STANDARDS CODE – MATRIX ADOPTION TABLE APPENDIX A6—VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]
The following sections are relocated from the voluntary appendices into one appendix to assist code users in the planning, design and construction of environmentally sustainable medical facilities under the authority of the Office of Statewide Health Planning and Development specified in Chapter 1 of this code.
CALGreen § 3.00 High relevance — show source text
120" diameter nail|12|3.00|0.70|DR|DR|2.15|DR|DR|DR| |Wood Framing
(minimum 11/4- inch
penetration)b|0.131" diameter nail|6|4.00|2.15|1.20|0.75|4.00|1.35|0.70|DR| |Wood Framing
(minimum 11/4- inch
penetration)b|0.131" diameter nail|8|4.00|1.55|0.80|DR|4.00|0.90|DR|DR| |Wood Framing
(minimum 11/4- inch
penetration)b|0.131" diameter nail|12|4.00|0.90|DR|DR|2.70|0.50|DR|DR| |Wood Framing
(minimum 11/4- inch
penetration)b|0.162" diameter nail|6|4.00|3.55|2.05|1.40|4.00|2.25|1.25|0.80| |Wood Framing
(minimum 11/4- inch
penetration)b|0.162" diameter nail|8|4.00|2.55|1.45|0.95|4.00|1.60|0.85|0.50| |Wood Framing
(minimum 11/4- inch
penetration)b|0.162" diameter nail|12|4.00|1.60|0.85|0.50|4.00|0.95|DR|DR| |For SI: 1 inch = 25.4 mm, 1 pound per square foot (psf) = 0.0479 kPa.
DR = Design Required, o.c. = on center.
a. Wood framing shall be spruce-pine-fir or any wood species with a specific gravity of 0.42 or greater in accordance with ANSI/AWC NDS.
b. The thickness of wood structural panels complying with the specific gravity requirement of Note a shall be permitted to be included in satisfying the minimum penetration
into framing.
c. Nail fasteners shall comply with ASTM F1667, except nail length shall be permitted to exceed ASTM F1667 standard lengths.
d. Foam sheathing shall have a minimum compressive strength of 15 psi in accordance with ASTM C578 or ASTM C1289.|For SI: 1 inch = 25.4 mm, 1 pound per square foot (psf) = 0.0479 kPa.
DR = Design Required, o.c. = on center.
a. Wood framing shall be spruce-pine-fir or any wood species with a specific gravity of 0.42 or greater in accordance with ANSI/AWC NDS.
b. The thickness of wood structural panels complying with the specific gravity requirement of Note a shall be permitted to be included in satisfying the minimum penetration
into framing.
c. Nail fasteners shall comply with ASTM F1667, except nail length shall be permitted to exceed ASTM F1667 standard lengths.
d. Foam sheathing shall have a minimum compressive strength of 15 psi in accordance with ASTM C578 or ASTM C1289.|For SI: 1 inch = 25.4 mm, 1 pound per square foot (psf) = 0.0479 kPa.
DR = Design Required, o.c. = on center.
a.CALGreen § 106.11. Medium relevance — show source text
**Locate orient and shade the building as
required in Section A6.106.11.||||| |SECTION A6.205 Building Envelope||||| |A6.205.1 Fenestration products and exterior doors.
A6.205.1.1 Certification of fenestration products and exterior door other than field-
fabricated.||||| |A6.205.1.2 Installation of field-fabricated fenestration and exterior doors.||||| |A6.205.2 Joints and other openings.||||| |A6.205.3 Installation and roofing products.|||||2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A6.1-37
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APPENDIX A6.1 — VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]
NONRESIDENTIAL OCCUPANCIES APPLICATION CHECKLIST [OSHPD 1, 2 and 4] — continued
FEATURE OR MEASURE COMPLIANCE LEVELS Col3 Col4 NOTES FEATURE OR MEASURE Mandatory
CALGreenVOLUNTARY
CALGreenVOLUNTARY
CALGreenVOLUNTARY
CALGreenFEATURE OR MEASURE Mandatory
CALGreenTier 1 Tier 2 Tier 2 SECTION A6.207 HVAC Design, Equipment and Installation A6.207.1 Space-conditioning equipment certification by manufacturers.
A6.207.1.1 Efficiency.
A6.207.1.2 Controls for heat pumps with supplementary electric resistance heaters.
A6.207.1.3 Thermostats.
A6.207.1.4 Gas-and oil-fired furnace standby loss controls.
A6.207.2 Space conditioning systems.
A6.207.2.1 Supply air temperature reset controls.
A6.207.2.2 Electric resistance heating.
A6.207.2.3 Heat rejection systems.
A6.207.2.4 Hydronic system measures.
A6.207.2.5 Air distribution system duct leakage sealing.
**A6.207.2.6 Variable air volume control for single zone systems.CALGreen § 25.4 Medium relevance — show source text
single floor
and other
grades
covered in
DOC PS 1
and PS 2|11/2 16
gage|1|19/32|2|175|235|350|400|155|115| |Sheathing,
single floor
and other
grades
covered in
DOC PS 1
and PS 2|11/2 16
gage|1|19/32|3|200|265|395|450|175|130| |For SI: 1 inch = 25.4 mm, 1 pound per foot = 14.5939 N/m.
a. For framing of other species: (1) Find specific gravity for species of lumber in ANSI/AWC NDS. (2) For staples find shear value from table for Structural I panels (regardless of
actual grade) and multiply value by 0.82 for species with specific gravity of 0.42 or greater, or 0.65 for all other species.
b. Space fasteners maximum 12 inches on center along intermediate framing members (6 inches on center where supports are spaced 48 inches on center).
c. Framing at adjoining panel edges shall be 3 inches nominal or wider.
d. Staples shall have a minimum crown width of7/16 inch and shall be installed with their crowns parallel to the long dimension of the framing members.
e. The minimum nominal width of framing members not located at boundaries or adjoining panel edges shall be 2 inches.
f. For shear loads of normal or permanent load duration as defined by the ANSI/AWC NDS, the values in the table shall be multiplied by 0.63 or 0.56, respectively.
g. For Case 1 through 6 descriptions see Figure 2306.2(1).|For SI: 1 inch = 25.4 mm, 1 pound per foot = 14.5939 N/m.
a. For framing of other species: (1) Find specific gravity for species of lumber in ANSI/AWC NDS. (2) For staples find shear value from table for Structural I panels (regardless of
actual grade) and multiply value by 0.82 for species with specific gravity of 0.42 or greater, or 0.65 for all other species.
b. Space fasteners maximum 12 inches on center along intermediate framing members (6 inches on center where supports are spaced 48 inches on center).
c. Framing at adjoining panel edges shall be 3 inches nominal or wider.
d. Staples shall have a minimum crown width of7/16 inch and shall be installed with their crowns parallel to the long dimension of the framing members.
e. The minimum nominal width of framing members not located at boundaries or adjoining panel edges shall be 2 inches.
f. For shear loads of normal or permanent load duration as defined by the ANSI/AWC NDS, the values in the table shall be multiplied by 0.63 or 0.56, respectively.
g. For Case 1 through 6 descriptions see Figure 2306.2(1).|For SI: 1 inch = 25.4 mm, 1 pound per foot = 14.5939 N/m.
a. For framing of other species: (1) Find specific gravity for species of lumber in ANSI/AWC NDS.CALGreen § 0.057 Medium relevance — show source text
brass**
or aluminum| |Linear dimension|Surface area in
square inches|Zinc coated|Uncoated|Uncoated| |24|360|0.057
(16)|0.054
(16)|0.075
(12)| |48|1,200|0.071
(14)|0.067
(14)|0.095
(10)| |60|1,500|0.098
(12)|0.095
(12)|0.122
(8)| |Over 60|Over 1,500|0.127
(10)|0.124
(10)|0.153
(6)| |For SI: 1 inch = 25.4 mm, 1 square inch = 645 mm2.
**Note:*Numbers in parentheses are the galvanized sheet gage for zinc-coated steel, manufacturer’s standard gage for uncoated steel, American wire gage for nonferrous metal.
At areas where armored cable or conduit is to be attached, sheet metal shall be of such thickness or so formed or reinforced that it will have the stiffness equivalent to uncoated
flat sheet steel 0.054 inch thickness; when a supporting frame or equivalent reinforcing by forming or flanging is provided, thicknesses may be reduced by two gage numbers.|For SI: 1 inch = 25.4 mm, 1 square inch = 645 mm2.
**Note:*Numbers in parentheses are the galvanized sheet gage for zinc-coated steel, manufacturer’s standard gage for uncoated steel, American wire gage for nonferrous metal.
At areas where armored cable or conduit is to be attached, sheet metal shall be of such thickness or so formed or reinforced that it will have the stiffness equivalent to uncoated
flat sheet steel 0.054 inch thickness; when a supporting frame or equivalent reinforcing by forming or flanging is provided, thicknesses may be reduced by two gage numbers.|For SI: 1 inch = 25.4 mm, 1 square inch = 645 mm2.
**Note:*Numbers in parentheses are the galvanized sheet gage for zinc-coated steel, manufacturer’s standard gage for uncoated steel, American wire gage for nonferrous metal.
At areas where armored cable or conduit is to be attached, sheet metal shall be of such thickness or so formed or reinforced that it will have the stiffness equivalent to uncoated
flat sheet steel 0.054 inch thickness; when a supporting frame or equivalent reinforcing by forming or flanging is provided, thicknesses may be reduced by two gage numbers.|For SI: 1 inch = 25.4 mm, 1 square inch = 645 mm2.
**Note:*Numbers in parentheses are the galvanized sheet gage for zinc-coated steel, manufacturer’s standard gage for uncoated steel, American wire gage for nonferrous metal.
At areas where armored cable or conduit is to be attached, sheet metal shall be of such thickness or so formed or reinforced that it will have the stiffness equivalent to uncoated
flat sheet steel 0.054 inch thickness; when a supporting frame or equivalent reinforcing by forming or flanging is provided, thicknesses may be reduced by two gage numbers.|For SI: 1 inch = 25.4 mm, 1 square inch = 645 mm2.
**Note:**Numbers in parentheses are the galvanized sheet gage for zinc-coated steel, manufacturer’s standard gage for uncoated steel, American wire gage for nonferrous metal.CALGreen § 204.4.6 Medium relevance — show source text
A6.204.4.6 Commissioning report. The CxA shall create a complete report of commissioning process activities undertaken through the design, construction and postconstruction phases of the building project and provided to the owner.
A6.204.6 Building orientation and shading. Locate orient and shade the building as required in Section A6.106.9.
SECTION A6.205 [OSHPD 1 & 4]—BUILDING ENVELOPE
A6.205.1 Fenestration products and exterior doors.
A6.205.1.1 Certification of fenestration products and exterior doors other than field-fabricated. Any fenestration product and exterior door, other than field-fabricated fenestration products and field-fabricated exterior doors, may be installed only if the manufacturer has certified to the California Energy Commission or if an independent certifying organization approved by the Commission has certified that the product complies with all of the applicable requirements of this subsection.
A6.205.1.1.1 Air leakage. Manufactured fenestration products and exterior doors shall have air infiltration rates not exceeding 0.3 cfm/ft [2] of window area, 0.3 cfm/ft [2] of door area for residential doors, 0.3 cfm/ft [2] of door area for nonresidential single doors
APPENDIX A6.1-4 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
APPENDIX A6.1 — VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]
(swinging and sliding) and 1.0 cfm/ft [2] for nonresidential double doors (swinging), when tested according to NFRC-400 or ASTM E283 at a pressure differential of 75 pascals (or 1.57 pounds/ft [2] ), incorporated herein by reference.
A6.205.1.1.2 U -factor. A fenestration product’s U -factor shall be rated in accordance with NFRC 100 or the applicable default U -factor set forth in Table A.5.205.1-A.
Exception: If the fenestration product is a skylight or is site-built fenestration in a building covered by the nonresidential standards with less than 10,000 square feet of site-built fenestration, the default U- factor may be calculated as set forth in Reference Nonresidential Appendix NA6 of the California Energy Commission 2008 Building Energy Efficiency Standards for Residential and Nonresidential Buildings.
TABLE A.5.205.1-A—DEFAULT FENESTRATION PRODUCT U-FACTORS Col2 Col3 Col4 Col5 FRAME PRODUCT TYPE SINGLE PANE
U-FACTORDOUBLE PANE1
U-FACTORGLASS BLOCK2
U-FACTORMetal Operable 1.28 0.79 0.87 Metal Fixed 1.19 0.71 0.72 Metal Greenhouse/garden window 2.26 1.40 N.A. Metal Doors 1.25 0.77 N. CALGreen § 0.514 High relevance — show source text
**Allowance for the total area within the drip line of the canopy.
Luminaires qualifying for this allowance shall be located under the canopy.|0.514
w/ft2|1.005
w/ft2|1.358
w/ft2|2.285
w/ft2| ||**Sales canopies allowance for the total area within the drip line of the canopy.**Luminaires qual-
ifying for this allowance shall be located under the canopy.|No
allowance|0.655
w/ft2|0.908
w/ft2|1.135
w/ft2| ||**Nonsales canopies.**Allowance for the total area within the drip line of the canopy. Luminaires
qualifying for this allowance shall be located under the canopy.|0.084
w/ft2|0.205
w/ft2|0.408
w/ft2|0.585
w/ft2| ||**Guard stations.**Allowance up to 1,000 square feet per vehicle lane. Guard stations provide
access to secure areas controlled by security personnel who stop and may inspect vehicles and
vehicle occupants, including identification, documentation, vehicle license plates and vehicle
contents. Qualifying luminaires shall be within two mounting heights of a vehicle lane or the
guardhouse.|0.154
w/ft2|0.355
w/ft2|0.708
w/ft2|0.985
w/ft2| ||**Student pick-up/drop-off zone.**Allowance for the area of the student pick-up/drop-off zone, with
or without canopy, for preschool through 12th grade school campuses. A student pick-up/drop off
zone is a curbside, controlled traffic area on a school campus where students are picked up and
dropped off from vehicles. The allowed area shall be the smaller of the actual width or 25 feet,
times the smaller of the actual length or 250 feet. Qualifying luminaires shall be within two mount-
ing heights of the student pick-up/drop-off zone.|No
allowance|0.12
w/ft2|0.45
w/ft2|No
allowance| ||**Outdoor dining.**Allowance for the total illuminated hardscape of outdoor dining. Outdoor dining
areas are hardscape areas used to serve and consume food and beverages. Qualifying luminaires
shall be within 2 mounting heights of the hardscape area of outdoor dining.|0.014
w/ft2|0.135
w/ft2|0.258
w/ft2|0.435
w/ft2| ||**Special security lighting for retail parking and pedestrian hardscape.**This additional allowance
is for illuminated retail parking and pedestrian hardscape identified as having special security
needs. This allowance shall be in addition to the building entrance or exit allowance.|0.007
w/ft2|0.009
w/ft2|0.019
w/ft2|No
allowance|CALGreen § 1-5 High relevance — show source text
102 Construction Documents
and Installation Verification . . . . . . . . . . . . . . . . . . . .1-5
103 Building Standards Commission. . . . . . . . . . . . . . . . . . .1-5 104 Department of Housing and Community Development. . . . . . . . . . . . . . . . . .1-6 105 Division of the State Architect . . . . . . . . . . . . . . . . . . . . .1-6
106 Office of Statewide Health Planning and Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
CHAPTER 2 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
201 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
202 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
CHAPTER 3 GREEN BUILDING . . . . . . . . . . . . . . . . . . . . . . . . 3-3
301 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
302 Mixed Occupancy Buildings . . . . . . . . . . . . . . . . . . . . . . .3-4 303 Phased Projects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 304 Voluntary Tiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 305 CALGreen Tier 1 and CALGreen Tier 2 . . . . . . . . . . . . . .3-4
306 Voluntary Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
CHAPTER 4 RESIDENTIAL MANDATORY MEASURES . . . . . . 4-3
4.1 Planning and Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3 4.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7 4.3 Water Efficiency and Conservation . . . . . . . . . . . . . . . . .4-9 4.4 Material Conservation and Resource Efficiency . . . . 4-11 4.5 Environmental Quality . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
CHAPTER 5 NONRESIDENTIAL MANDATORY MEASURES . . 5-3
CALGreen § 8-40 High relevance — show source text
. . . . . . . . . . . . . 8-40
APPENDIX A4 RESIDENTIAL
VOLUNTARY MEASURES. . . . . . . . . . . . . . . . . APPENDIX A4-3
A4.1 Planning and Design . . . . . . . . . . . . . . . . . APPENDIX A4-3 A4.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . . APPENDIX A4-9 A4.3 Water Efficiency and Conservation . . . APPENDIX A4-13 A4.4 Material Conservation and Resource Efficiency . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A4-15 A4.5 Environmental Quality . . . . . . . . . . . . . . APPENDIX A4-19 A4.6 Tier 1 and Tier 2 . . . . . . . . . . . . . . . . . . . . APPENDIX A4-21
Division A4.6—Residential Occupancies Application Checklist . . . . . . . . . . . . . APPENDIX A4-23 A4.7 Residential Model Ordinance . . . . . . . . . APPENDIX A4-31
APPENDIX A5 NONRESIDENTIAL
VOLUNTARY MEASURES. . . . . . . . . . . . . . . . . APPENDIX A5-3
A5.1 Planning and Design . . . . . . . . . . . . . . . . . APPENDIX A5-3 A5.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . APPENDIX A5-13 A5.3 Water Efficiency and Conservation . . . APPENDIX A5-19 A5.4 Material Conservation and Resource Efficiency . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A5-25 A5.5 Environmental Quality . . . . . . . . . . . . . . APPENDIX A5-35 A5.6 Voluntary Tiers . . . . . . . . . . . . . . . . . . . . . APPENDIX A5-41 A5.601 CALGren Tier 1 and Tier 2. . . . . . . . . . APPENDIX A5-41
A5.602 CALGreen Verification Guidelines Mandatory Measures Checklist . . . . . . . . . . . . . . . APPENDIX A5-44
A5.602.1 CALGreen Verification Guidelines
Tier 1 Checklist . . . . . . . . . . . . . . . . . APPENDIX A5-48
A5.602.2 CALGreen Verification Guidelines
Tier 2 Checklist . . . . . . . . . . . . . . . . . APPENDIX A5-55
APPENDIX A6 VOLUNTARY STANDARDS FOR HEALTH
CALGreen § 203.1.1 High relevance — show source text
[OSHPD 1]**
**A6.203.1.1 CALGreen Tier 1. [OSHPD 1]**Buildings must comply with the latest edition of
“Savings By Design, Healthcare Modeling Procedures.”
A.5.203.1.2 CALGreen Tier 2. [OSHPD 1] Buildings must exceed the latest edition of “Savings
By Design, Healthcare Modeling Procedures” by 15 percent.||||| |SECTION A6.204 Prescriptive Measures||||| |**A6.204.1 ENERGY STAR equipment and appliances.**All equipment and appliances provided
by the builder shall be ENERGY STAR labeled if ENERGY STAR is applicable to that equipment
or appliance.||||| |A6.204.4 Commissioning. Building commissioning for all building systems covered by T24,
Part 6, process systems and renewable energy systems shall be included in the design and
construction processes of the building project. Commissioning requirements shall include as
a minimum items listed in Section A6.204.4.
**A6.204.4.1 Owner’s Project Requirements (OPR).**Documented before the design phase of
the project begins the OPR shall include items listed in Section A6.204.4.
**A6.204.4.2 Basis of Design (BOD).**A written explanation of how the design of the building
systems meets the OPR shall be completed at the design phase of the building project and
updated periodically to cover the systems listed in Section A6.204.4.2.
**A6.204.4.3 Commissioning plan.**A commissioning plan describing how the project will be
commissioned shall be started during the design phase of the building project and shall
include as a minimum items listed in Section A6.204.4.3.
A6.204.4.4 Functional performance testingshall demonstrate the correct installation and
operation of each component, system and system-to-system interface in accordance with
the approved plans and specifications.
**A6.204.4.5 Post construction documentation and training.**A systems manual and
systems operations training are required.
**A6.204.4.5.1 Systems manual.**The systems manual shall be delivered to the building
owner and facilities operator and shall include the items listed in Section A6.204.4.5.1.
A6.204.4.5.2 Systems operations training. The training of the appropriate maintenance
staff for each equipment type and/or system shall include as a minimum items listed in
Section A6.204.4.5.2.
**A6.204.4.6 Commissioning report.**A complete report of commissioning process activities
undertaken through the design, construction and postconstruction phases of the building
project shall be completed and provided to the owner.||
|
|| |**A6.204.6 Building orientation and shading.CALGreen § 7-94 Medium relevance — show source text
× 190|11/2|11/2|11/2|2|21/2| |× 152|× 152|× 152|× 152|× 152|× 152| |× 136|× 136|× 136|× 136|× 136|3| |× 106|× 106|× 106|× 106|21/2|21/2| |× 96|× 96|× 96|× 96|× 96|31/2| |× 87|× 87|× 87|× 87|× 87|× 87| |× 65|× 65|× 65|2|2|2| |× 40|× 40|× 40|× 40|3|3| |W10 × 112|11/2|11/2|11/2|2|3| |× 100|× 100|× 100|× 100|21/2|21/2| |× 88|× 88|× 88|× 88|× 88|× 88| |× 77|× 77|× 77|2|2|31/2| |× 60|× 60|× 60|× 60|× 60|× 60| |× 39|× 39|× 39|× 39|3|3| |× 33|× 33|2|2|2|2|
7-94 2025 CALIFORNIA BUILDING CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
FIRE AND SMOKE PROTECTION FEATURES
TABLE 722.5.1(10)—MINIMUM COVER (inch) FOR STEEL COLUMNS
IN STRUCTURAL LIGHTWEIGHT PRECAST COVERSa [FIGURE 722.5.1 (6)(a)]—continuedCol2 Col3 Col4 Col5 Col6 STRUCTURAL SHAPE FIRE-RESISTANCE RATING (hours) FIRE-RESISTANCE RATING (hours) FIRE-RESISTANCE RATING (hours) FIRE-RESISTANCE RATING (hours) FIRE-RESISTANCE RATING (hours) STRUCTURAL SHAPE 1 11/2 2 3 4 W8 × 67 11/2 11/2 11/2 21/2 3 × 48 × 48 × 48 2 3 31/2 × 35 × 35 × 35 × 35 × 35 × 35 × 28 × 28 2 2 2 2 × 18 × 18 × 18 21/2 21/2 4 W6 × 25 11/2 2 2 3 31/2 × 15 × 15 × 15 21/2 21/2 4 × 9 × 9 × 9 × 9 31/2 31/2 For SI: 1 inch = 25.4 mm.
a.
Frequently asked questions
What if the lot orientation makes north–south long sides impossible?
The code language for § A6.106.9 is conditional (“When site and location permit”). If the lot or site constraints prevent north–south long‑side orientation, the designer should document why and then use the other required measures (landscape features, shading, envelope protection) to meet the section’s intent.
Is there a required distance for windbreaks or shading elements in the code text you provided?
No — the specific distances or dimensional prescriptions (if any) that would be in § A6.106.11 were not present in the supplied files. The code does reference § A6.106.11 for locate/orient/shade, but I could not find that section’s full text in the documents you provided. Check the official CALGreen text for § A6.106.11.
Do I need to show orientation/shading in commissioning documents?
Yes. The commissioning and prescriptive sections tie orientation and shading into the commissioning scope and report — see § A6.204.6 and the commissioning subsections of § A6.204.4. Document your orientation decisions in the OPR/BOD and the commissioning plan.
Can I use a modeling tool to justify a different orientation?
Yes — § A6.106.9 notes that calculations may be made using the Solar‑2 tool for sun/shade analysis. Use that or equivalent analysis to justify alternate layouts when site constraints exist.
Where can I find the full text of § A6.106.11?
The full text of § A6.106.11 was not included in the files provided to me. To apply any specific dimensional requirements or thresholds contained in that section, consult the official 2025 CALGreen code document (Appendix A6) or your enforcing agency’s adopted edition.
More in California Green Building Standards Code (CALGreen)
- Administration (Chapter 1)
- Nonresidential Voluntary Measures (Appendix A5 — divisions A5.1–A5.6, electives & verification)
- Residential Mandatory Measures — Planning & Design; Energy; Water; Materials; Environmental Quality (Chapter 4)
- Definitions (Chapter 2)
- Voluntary Standards for Health Facilities (Appendix A6 / OSHPD guidance)
- Green Building – scope, mixed occupancies, phased projects (Chapter 3)
- Residential Voluntary Measures (Appendix A4 — divisions A4.1–A4.6, tiers & model ordinance)
- Nonresidential Mandatory Measures — Planning & Design; Energy; Water; Materials; Environmental Quality (Chapter 5)
- Compliance verification, construction documents & checklists (Section 102, Chapter 7, Appendix checklists)
- Referenced Organizations and Standards (Chapter 6)
- Voluntary Tiers and CALGreen Tier 1 / Tier 2 (performance tiers, thresholds)
- Installer and Special Inspector Qualifications (Chapter 7)
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