Understanding the 2010 California Green Building Standards

Understanding the 2010

California Green Building

Standards Code

ICC High Desert ChapterSeptember 23, 2010

Presented by Bill Read

Today’s agenda%

� CalGreen Code- some background

� Overview of Code

� Chapter 1 Administration

� Chapter 2 Definitions

� Chapter 3 Green Building

� Chapter 4 Residential Mandatory Measures

� Chapter 5 Non-Res Mandatory Measures

Overview (continued)

� Additional Chapters%

� Chapter 6 Referenced Organizations &

Standards

� Chapter 7 Installer and Special Inspector

Qualifications

� Chapter 8 Compliance Forms and

Worksheets

Overview (continued)

� Appendices

� Appendix A4 Residential Voluntary Measures

� Tier 1 & Tier 2

� Residential compliance checklist

� Appendix A5 Non-Res Voluntary Measures

� Tier 1 & Tier 2

� Non-residential compliance checklist

Background & History

� Why a State Green Building Code?

� AB 32 - Global warming & greenhouse gas

emissions (GHGs)

� Buildings are the 2nd largest contributor to

GHG emissions

� Reduce GHG emissions to 1990 levels

� Reduce grid-based electricity by 20% in state

owned buildings by 2015

Background & History (cont.)

� California Building Standards Commission

was mandated by the State legislature to

create new ‘green’ building regulations to

regulate construction for compliance with

provisions of AB 32

� Developed by CBSC with help from HCD,

DSA, SFM, CEC

Background & History (cont.)

� CalGreen Code is Part 11 of Title 24, California Code of Regulations

� Developed by CBSC with help from HCD, DSA, SFM, CEC

� Not based on any existing model green code such as ICC model code

� Original effective date% August 1, 2009

� Not a points based plan such as LEED or other rating system for compliance

Chapter 1 Administration

� Section 101.2 Purpose

� Purpose- “%to improve public, health, safety

and general welfare by enhancing the design

and construction of buildings through the use

of building concepts having a reduced

negative impact or positive environmental

impact and encouraging sustainable

construction practices in the following

categories:

Chapter 1 Administration (cont.)

� Planning and design

� Energy efficiency

� Water efficiency and conservation

� Material conservation and resource

efficiency

� Environmental quality


� 101.3 Scope.

� “%shall apply to%every newly constructed

building or structure%”

� “%not the intent that this code%be identified

as meeting the certification requirements of

any green building program.”


� 101.4 Appendices.

� “%are not mandatory unless specifically adopted by%a city,% or county%”

� 101.7.1 Findings and filings. (amendments)

� “shall make express findings for each amendment%based upon climatic, topographical or geological conditions.”

� Other sections in Chapter 1 have similar text to CBC & CRC

Chapter 2 Definitions

� 201.3 Terms defined in other documents.

� Can use definition from other state codes if

not specifically defined in this code.

� 201.4 Terms not defined.

� “%shall have ordinarily accepted meanings%”

Chapter 2 Definitions (cont.)

� Green building-

� “A holistic approach to design, construction,

and demolition that minimizes the building’s

impact on the environment, the occupants

and the community.”

Chapter 3 Green Building

� 301.1 Scope

� “Buildings shall be designed to include the

green building measures specified an

mandatory in the application checklists

contained in this code. Voluntary green

building measures% may be included in the

design and construction of structures covered

by this code but are not required unless

adopted%”

Chapter 3 Green Building (cont.)

� 302.1 Mixed occupancy buildings

� Each portion shall comply with specific green building

measures applicable to that occupancy

� 303.1.1 Tenant improvements.

� The provisions of this code shall apply only to the

initial tenant or occupant improvements to a project.

� Section 304 Voluntary tiers

� 301.4 purpose. Voluntary tiers are intended to further

encourage building practices that improve public

health, safety and general welfare%

Chapter 3 Green Building (cont.)

� Shades of green%3 levels� Mandatory measures

� Tier 1- first level above mandatory

� Tier 2- higher level above mandatory

� We will not be responsible to verify unless

specifically adopted

� Next code cycle may be mandatory%

Chapter 4Residential Mandatory Measures

� Residential mandatory measures are separated

into five divisions or sub-chapters

� Division 4.1- Planning and Design

� Division 4.2- Energy Efficiency

� Division 4.3- Water Efficiency and

Conservation

� Division 4.4- Material Conservation and

Resource Efficiency

� Division 4.5- Environmental Quality

Division 4.1

Planning and Design

� 4.106 Site Development

� 4.106.1 General

� Preservation and use of available natural

resources

� Minimize negative effects of the construction

and future building on the site and adjacent

areas

� Through evaluation and careful planning

Division 4.1

Planning and Design (cont.)

� 4.106.2 Storm water drainage and retention during construction

� Similar to NPDES construction requirements

� On-site stormwater drainage & retention

� Compliance with any local storm water ordinances

� 4.106.3 Surface drainage

� Management of stormwater runoff once the project is completed

Division 4.2

Energy Efficiency

� 4.201 General� HCD does not regulate mandatory energy efficiency

standards in residential buildings

� Refers you to the California Energy Code for mandatory requirements

� Refer to note%

“%the California Energy Commission believes specifically, a green building should achieve at least a 15% reduction in energy usage when compared to the State’s mandatory energy efficiency standards.” %HCD does not require compliance with levels beyond those required by the Energy Commission.

Division 4.3

Water Efficiency and Conservation

4.303 Indoor water use� 4.303.1 20% savings in overall indoor use

� Two methods for achieving this

� Provide a schedule of plumbing fixtures showing a

20% reduction per Table 4.303.2

Provide calculations showing a 20% reduction in

the “water use” baseline as established in Table

4.303.1

*See footnote 3 for occupant calculation

Division 4.3

Water Efficiency and Conservation (cont.)

� 4.303.2 Multiple showerheads

� Combined flow rate of all heads shall not

exceed maximum rate in Table 4.303.2 , or%

� Shower designed to only allow one

showerhead to in use at one time, or%

� Use the calculation method with maximum

combined flow rate of 2.5 gpm (per exception)

Note: These provisions effective July 1, 2011

Division 4.3


4.304 Outdoor Water Use

� 4.304.1 Irrigation controllers

� Automatic controllers installed at the time of final inspection must be:� Weather or soil moisture-based to automatically

adjust to plants needs as weather conditions change, or%

� Weather-based controllers with integral rain sensors

Division 4.4

Material Conservation and

Resource Efficiency

� 4.406 Enhanced Durability and Reduced

Maintenance

� Seal openings per the CEC

� Or, where there is concern about rodents%

seal with mortar, masonry or similar method

Division 4.4


Resource Efficiency (cont.)

� 4.408 Construction Waste Reduction,

Disposal and Recycling

� Recycle and/or salvage minimum 50% of

construction waste

� Construction waste management plan

� Applies where jurisdiction has no ordinance

� Applicant must submit a waste management plan

for approval by enforcing agency that includes the

5 items listed in 4.408.2

Division 4.4



� 4.410 Building Maintenance & Operation

� Requires an operation & maintenance manual

be placed in the building at the time of final

� May be in one of several formats including written

manual, CD, web-based manual for owner

� Must include all 10 items listed in 4.410.1

� Must remain with the building throughout the life cycle of

the building

How will this be enforced by local agency?

Division 4.5

Environmental Quality

� 4.501.1 Scope

� Reduce air contaminants that are odorous,

irritating and/or harmful to the comfort and

well being of a building’s installers, occupants,

and neighbors

� 4.503 Fireplaces- direct vent sealed

� Wood / pellet stoves- EPA, AQMD, local ord.

Division 4.5

Environmental Quality (cont.)

� 4.504 Pollutant control

� HVAC systems- Cover / seal ducts during

construction to avoid dust

� Adhesives, sealants and caulks- low VOCs

� Paints & Coatings- low VOCs

� Carpet / flooring- low VOCs & other reqmts.

� Verification/documentation of compliance- per

request of local enforcing agency

Division 4.5


� 4.405 Interior Moisture Control

� 4.505.2 Concrete slabs � moisture barrier required

� 4.505.3 Moisture content of building materials � Water damaged materials can’t be used

� Protect framing lumber from rain

� Moisture content of framing lumber 19% max. prior to enclosing- provide proof to enforcing agency

� Insulation protected from moisture, damaged material should be replaced

Division 4.5


� 4.506 Indoor Air Quality and Exhaust

� 4.506.1 Bathroom fans

� Energy Star compliant

� Terminate outside building

� Be controlled by a humidistat (readily accessible)

� Capable of adjustment between 50% & 80%

Chapter 4.5


� 4.507 Environmental Comfort

� 4.507.1 Whole house fans

� Insulated louvers R-4.2 min.

� 4.507.2 HVAC system design

� Must be designed system per one of three

methods listed in this subsection

� Exception allows for alternate design temperatures

necessary to ensure system functions properly

Chapter 5Non-Residential Mandatory Measures

� Non-residential mandatory measures are

separated into the same five divisions or

sub-chapters as the residential mandatory

measures

� Many of the mandatory requirements are

very similar or identical to those outlined in

Chapter 4

Division 5.1

Planning and Design

� 5.101 General

� 5.101.1 Purpose

� Outlines methods for site planning, design

and development%

“that include environmentally responsible site

selection, building design, building siting and

development to protect, restore and enhance

the environmental quality of the site and

respect the integrity of adjacent properties”

Division 5.1


� 5.106 Site Development� 5.106.1 Storm water pollution prevention plan

� Less than 1 acre- develop a SWPP per NPDES

requirements or local ordinance

� Over 1 acre- additional requirements per local

jurisdiction & state requirements

Division 5.1


� 5.106.4 Bicycle parking and changing rooms

�Short term- where project will have visitors

� Permanent bike racks within 100 feet of entrance

� Number of bike spaces based on 5% of parking

�Long term (buildings over 10 occupants)

� Secure bike storage for 5% of parking

� Covered lockable enclosures

� Lockable bike rooms

� Lockable bike lockers

Division 5.1


� 5.106.5.2 Designated parking

� For low-emitting, fuel-efficient, carpool/van

pool vehicles

� Required number of spaces per table

5.106.5.2

� Does not specify where the spaces are to be

located

� Spaces must be properly marked

‘CLEAN AIR VEHICLE’

Division 5.1


� 5.106.8 Light pollution reduction

� Comply with requirements per Energy Code for lighting efficiency

� Shield outdoor lighting- no direct beam light leaves site

� Indoor lighting- contain within each source

� Some exceptions

� 5.106.10 Grading & paving

� Drain site away from buildings, manage runoff

Division 5.2

Energy Efficiency

� 5.201 General

� California Energy Commission will continue to

adopt mandatory building standards

� Refer to note%

“%the California Energy Commission believes

specifically, a green building should achieve

at least a 15% reduction in energy usage

when compared to the State’s mandatory

energy efficiency standards.”

Division 5.3

Water Efficiency and Conservation

5.303 Indoor water use� 5.303.1 Meters

� Buildings over 50,000 sf must have separate water meters for:� Every tenant projected to consume more than 100 gal/day

� All laundry, cleaners, restaurant or food service, medical or dental office, laboratory, beauty salon, barber shop projected to consume 100 gal/day

� Any building within a project or space within a building projected to use more than 1,000 gal/day must have a separate meter

Division 5.3


� 5.303.2 20% savings in overall indoor use

� The same as for residential

� 4.303.2 Multiple showerheads

� The same as for residential

Note: These provisions effective July 1, 2011

Division 5.3


These provisions not in residential mandatory requirements

� 5.303.4 Wastewater reduction

� Reduce wastewater by 20% by one of the

following:

� The installation of water-conserving fixtures

� Utilizing nonpotable water systems

� 5.303.6 Plumbing fixtures and fittings

� Shall meet the standards in table 5.503.6

Division 5.3


5.304 Outdoor Water Use

� 5.304.1 Water budget� Develop a water budget per local ordinance or

California Department of Water Resources Model Water Efficient Landscape Ordinance

� 5.304.2 Outdoor potable water use� Install separate meters or submeters for indoor &

outdoor potable water where landscape areas are between 1,000 sf & 5,000 sf (Water Code s535 applies for over 5,000 sf)

Division 5.3


� 5.304.3 Irrigation design (Applies to

landscaped areas between 1,000 sf & 2,500 sf)

� Automatic controllers installed at the time of

final must comply with the following:

� Weather or soil moisture-based to automatically

adjust to plants needs as weather conditions

change, or%

� Weather-based controllers with integral rain

sensors

Division 5.4


Resource Efficiency

� 5.401.1 Scope

� Outline provisions to achieve material conservation

and resource efficiency%

� 5.402 Definitions

� Building Commissioning- A systematic quality

assurance process that spans the entire design and

construction process, including verifying and

documenting that building systems and components

are planned, designed, installed, tested, operated and

maintained to meet the owner’s project requirements.

Division 5.4



� 5.407 Water resistance and moisture

management

� 5.407.1 Weather protection

� Provide a weather resistant exterior wall and

foundation envelope as required by the CBC

� Basically, keep moisture out of the building and off

the building

Division 5.4



� 5.408 Construction Waste Reduction,

Disposal and Recycling

� 5.408.2 Construction waste management plan

� Applies where jurisdiction has no ordinance

� Applicant must submit a waste management plan

for approval by enforcing agency that includes the

4 items listed in 5.408.2

� 5.408.3 Recycle and/or salvage minimum 50%

of construction waste

Division 5.4



� 5.410 Building Maintenance & Operation� 5.410.1Recycling- provide areas for collection of

materials to be recycled

� 5.410.2 Commissioning (buildings >10,000 sf)

� Building commissioning shall be included in the design and construction processes of the building project%

� Performed by trained personnel

� Must include 7 items listed in this section

� 5.410.2.3 Commissioning plan required prior to issuance of the building permit

Division 5.4



� 5.410.2.5 Documentation & training� Requires a systems manual delivered to the

building owner to include 7 items listed

� Training of maintenance staff must include 4 items listed to be documented in the commissioning report

� 5.410.2.6 Commissioning report� Must be provided to the building owner

� 5.410.4 Testing-� required for buildings <10,000 sf

Division 5.5

Environmental Quality

The provisions of this division are similar to the

residential provisions

Some added sections%

� 5.504.7 Environmental tobacco smoke

� Prohibit smoking within 25’ of building entries,

outdoor air intakes and operable windows%

Division 5.5


� 5.506.2 Carbon dioxide monitoring

� Provide CO2 sensors for buildings with

demand control ventilation

� 5.507.4 Acoustical control

� Specifies STC ratings for buildings in certain

locations

Chapters 6, 7, 8

� Chapter 6 Referenced Organizations and

Standards

� Organization, Standard, Referenced section

� Chapter 7 Installer and Special Inspector

Qualifications

� 702.1 %installers shall be trained and certified

� 702.2 Special inspectors shall be used when required

by enforcing agency

� Chapter 8 Compliance Forms and Worksheets

Appendix 4AResidential Voluntary Measures

� The residential voluntary measures

outlined in Appendix 4A follow the same

format as Chapter 4. ie. 5 separate

divisions covering the same areas.

� Also section A4.602 Residential checklist

Section A4.602Residential Checklist

See page 73

� Includes three levels of compliance

� Mandatory

� Level 1

� Level 2

Appendix A5Non-Res Voluntary Measures

� Similar format to Appendix A4

� Also includes Division A5.6- Voluntary

Tiers

� See matrix table for agency adoption

p151 Division A 5.7Nonresidential Checklist

� See page 151

� Includes three levels of compliance

� Mandatory

� Tier 1

� Tier 2

Questions?

Thank you

Documents

Understanding the 2010 California Green Building Standards