Green Building Standards Code - State of California

ENERGY EFFICIENCY
504.4.5.2 Systems operations training. The training of
the appropriate maintenance staff for each equipment
type and/or system shall include, as a minimum, the following:
1. System/equipment overview (what it is, what it
does and what other systems and/or equipment it
interfaces with).
2. Review of the information in the systems manual.
3. Review of the record drawings on the system/equipment.
504.4.6 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.
504.5 Building orientation and shading. Locate, orient and
shade the building as follows:
1. Provide exterior shade for south-facing windows during
the peak cooling season.
2. Provide vertical shading against direct solar gain and
glare due to low altitude sun angles for east- and
west-facing windows.
3. When site and location permit, orient the building with
the long sides facing north and south.
4. 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.
504.5.1 Shading with vegetation. As applicable, comply
with local ordinance, Chapter 7A of the 2007 California
Building Code and, Chapter 47 of the California Fire Code
for locations designated by the enforcing agency as having a
significant risk for wildfires.
504.5.2 Sun angle calculations. 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.
504.6 Minimum energy performance for low-rise residential
buildings. Low-rise residential buildings shall meet or
exceed the minimum performance or prescriptive standard
design required by the California Energy Code currently in
effect.
SECTION 505
BUILDING ENVELOPE
(Reserved)
SECTION 506
AIR SEALING PACKAGE
506.1 Joints and openings. Openings in the building envelope
separating conditioned space from unconditioned space
needed to accommodate gas, plumbing, electrical lines and
other necessary penetrations must be sealed in compliance
with the California Energy Code.
Exception: Annular spaces around pipes, electric cables,
conduits or other openings in plates at exterior walls shall be
protected against the passage of rodents by closing such
openings with cement mortar, concrete masonry or similar
method acceptable to the enforcing agency.
506.1.1 Other openings. Whole house exhaust fans shall
have insulated louvers or covers which close when the fan is
off. Covers or louvers shall have a minimum insulation
value of R-4.2.
SECTION 507
HVAC DESIGN, EQUIPMENT AND INSTALLATION
(Reserved)
SECTION 508
WATER HEATING DESIGN, EQUIPMENT AND
INSTALLATION
(Reserved)
SECTION 509
LIGHTING
(Reserved)
SECTION 510
APPLIANCES
(Reserved)
SECTION 511
RENEWABLE ENERGY
511.1 On-site renewable energy. Use on-site renewable
energy sources such as solar, wind, geothermal, low-impact
hydro, biomass and bio-gas for at least 1 percent of the electric
power calculated as the product of the building service voltage
and the amperage specified by the electrical service
overcurrent protection device rating or 1kW (whichever is
greater), in addition to the electrical demand required to meet 1
percent of the natural gas and propane use. The building project’s
electrical service overcurrent protection device rating
shall be calculated in accordance with the 2007 California
Electrical Code. Natural gas or propane use is calculated in
accordance with the 2007 California Plumbing Code.
511.1.1 Documentation. Calculate renewable on-site
energy cost savings as a percentage of estimated local utility
rates for conventional fuel types. Factor in net-metering, if
offered by local utility, on an annual basis.
511.2 Green power. Using a calculation method approved by
the California Energy Commission, calculate the renewable
on-site energy system to meet the requirements of Section
511.1, expressed in kW. Factor in net-metering, if offered by
local utility, on an annual basis.
2008 CALIFORNIA GREEN BUILDING STANDARDS CODE 25