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All ideas, drawings,specifications shown herein are the
<br />property of West Coast Design Group and shall not be
<br />used, copied, reproduced, or disclosed to any person, firm
<br />or corporation, without the written consent of West Coast
<br />Design Group. Any infringement will be subject to legal
<br />action. The contractor shall verify and be responsible for all
<br />dimensions and conditions on the job and notify this office of
<br />any variations from dimensions and conditions shown
<br />herewith. Written dimensions take precedence over scaled
<br />dimensions.
<br />Mark Transmittal Set Date Description
<br />01
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<br />12/19/2024
<br />3/27/2025
<br />SHEET TITLE
<br />A-10
<br />SHEET 21
<br />PROJECT NO:
<br />STATUS:
<br />DRAWN BY:
<br />CHK'D BY:
<br />
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<br />PROJECT:
<br />CLIENT:
<br />PLOT DATE: 3/27/2025
<br /> 52-24
<br />PLAN CHECK#:101122356
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<br /> Submittal
<br />
<br />Mandatory Measures
<br />ADU
<br />3110 & 3112 S Griset Pl
<br />Santa Ana, CA 92704
<br />Matthew Mallari &
<br />Natalie Nguyen
<br />PLANNING - DESIGN
<br />41055 CHACO CANYON ROAD
<br />MURRIETA CA 92562
<br />WEST COAST
<br />DESIGN GROUP2022 Single-Family Residential Mandatory Requirements Summary
<br />5/6/22
<br />NOTE: Single-family residential buildings subject to the Energy Codes must comply with all applicable mandatory measures, regardless of the compliance approach
<br />used. Review the respective section for more information.
<br />(04/2022)
<br />Building Envelope:
<br />§ 110.6(a)1: Air Leakage.
<br />Labeling.
<br />§ 110.6(b): Field fabricated exterior doors and fenestration *
<br />§ 110.7: Air Leakage.
<br />§ 110.8(a): Insulation Certification by Manufacturers.
<br />Insulation Requirements for Heated Slab Floors. Heated slab floors must be insulated per the requirements of § 110.8(g).
<br />§ 110.8(i): Roofing Products Solar Reflectance and Thermal Emittance. 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
<br />§ 110.8(j): Radiant Barrier.
<br />§ 150.0(a):
<br />Roof Deck, Ceiling and Rafter Roof Insulation. average U-factor not exceeding U-0.184. Ceiling and rafter roofs minimum R-22 insulation in wood-frame ceiling; or area-weighted average U-factor must not exceed 0.043. Rafter roof alterations minimum R-19 or area-weighted average U-factor of 0.054 or less. 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 roof or ceiling which is sealed to limit infiltration and exfiltration *
<br />Loose-fill Insulation. Loose fill insulation must meet the manufacturer’s required density for the labeled R-value.
<br />§ 150.0(c):
<br />Wall Insulation.
<br />framing or have a U-factor of 0.071 or less. Opaque non-framed assemblies must have an overall assembly U-
<br /> *
<br />§ 150.0(d): Raised-floor Insulation. *
<br />§ 150.0(f):
<br />Slab Edge Insulation.
<br />without facings, no greater than 0.3 percent; have a water vapor permeance no greater than 2.0 perm per inch; be protected from
<br />§ 150.0(g)1: Vapor Retarder. vapor retarder. This requirement also applies to controlled ventilation crawl space for buildings complying with the exception to
<br />§ 150.0(g)2: Vapor Retarder.
<br />§ 150.0(q): Fenestration Products. *
<br />Fireplaces, Decorative Gas Appliances, and Gas Log:
<br />§ 110.5(e) Continuously burning pilot lights are not allowed for indoor and outdoor fireplaces.
<br />§ 150.0(e)1: Masonry or factory-built fireplaces must have a closable metal or glass door covering the entire opening of the firebox.
<br />§ 150.0(e)2: Combustion Intake. *
<br />§ 150.0(e)3: Flue Damper.
<br />Space Conditioning, Water Heating, and Plumbing System:
<br />§ 110.0-§ 110.3: Certification. *
<br />HVAC Efficiency.
<br />§ 110.2(b):
<br />Controls for Heat Pumps with Supplementary Electric Resistance Heaters. 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 *
<br />§ 110.2(c): Thermostats.
<br /> *
<br />Insulation. surface heat loss rating.
<br />§ 110.3(c)6: Isolation Valves.
<br />2022 Single-Family Residential Mandatory Requirements Summary
<br />5/6/22
<br />§ 110.5: Pilot Lights.
<br />(except appliances without an electrical supply voltage connection with pilot lights that consume less than 150 Btu per hour ); and pool
<br /> *
<br />§ 150.0(h)1:
<br />Building Cooling and Heating Loads.
<br />Equipment Volume, Applications Volume, and Fundamentals Volume; the SMACNA Residential Comfort System Installation
<br />Clearances.
<br />§ 150.0(h)3B: Liquid Line Drier.
<br />Water Piping, Solar Water-heating System Piping, and Space Conditioning System Line Insulation.
<br />§ 150.0(j)2:
<br />Insulation Protection.
<br />maintenance, and wind as required by §120.3(b). Insulation exposed to weather must be water retardant and protected from UV light (no
<br />adhesive tapes). Insulation covering chilled water piping and refrigerant suction piping located outside the conditioned space must
<br />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
<br />§ 150.0(n)1:
<br />Gas or Propane Water Heating Systems.
<br />designate a space at least 2.5’ x 2.5’ x 7’ suitable for the future installation of a heat pump water heater, and meet electrical and
<br />plumbing requirements, based on the distance between this designated space and the water heater location; and a condensate drain no
<br />§ 150.0(n)3:
<br />Solar Water-heating Systems.
<br />Certification Corporation (SRCC), the International Association of Plumbing and Mechanical Officials, Research and Testing (IAPMO
<br />R&T), or by a listing agency that is approved by the executive director.
<br />Ducts and Fans:
<br />
<br />§ 110.8(d)3:
<br />Ducts.
<br />contractor installs the insulation, the contractor must certify to the customer, in writing, that the insulation meets this requirement.
<br />§ 150.0(m)1:
<br />CMC Compliance.
<br />Duct Construction Standards Metal and Flexible 3rd Edition. Portions of supply-air and return-air ducts and plenums must be insulated to
<br />R-6.0 or higher; ducts located entirely in conditioned space as confirmed through field verification and diagnostic testing (RA3.1.4.3.8)
<br />do not require insulation. Connections of metal ducts and inner core of flexible ducts must be mechanically fastened. Openings must be
<br />sealed with mastic, tape, or other duct-closure system that meets the applicable UL requirements, or aerosol sealant that meets UL 723.
<br />The combination of mastic and either mesh or tape must be used to seal openings greater than ¼”, If mastic or tape is used. Building
<br />cavities, air handler support platforms, and plenums designed or constructed with materials other than sealed sheet metal, duct board or
<br />flexible duct must not be used to convey conditioned air. Building cavities and support platforms may contain ducts; ducts installed in
<br />. *
<br />§ 150.0(m)2:
<br />Factory-Fabricated Duct Systems.
<br />connections, and closures; joints and seams of duct systems and their components must not be sealed with cloth back rubber adhesive
<br />§ 150.0(m)3: Field-Fabricated Duct Systems.
<br />mastics, sealants, and other requirements specified for duct construction.
<br />§ 150.0(m)7: Backdraft Damper.
<br />§ 150.0(m)8: Gravity Ventilation Dampers.
<br />§ 150.0(m)9:
<br />Protection of Insulation.
<br />Insulation exposed to weather must be suitable for outdoor service (e.g., protected by aluminum, sheet metal, painted canvas, or plastic
<br />Porous Inner Core Flex Duct.
<br />§ 150.0(m)11:
<br />Duct System Sealing and Leakage Test.
<br />occupiable space, the ducts must be sealed and duct leakage tested, as confirmed through field verification and diagnostic testing, in
<br />accordance with Reference Residential Appendix RA3.1.
<br />§ 150.0(m)12:
<br />Air Filtration.
<br />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.
<br />Clean-filter pressure drop and labeling must meet the requirements in §150.0(m)12. Filters must be accessible for regular service. Filter
<br />racks or grilles must use gaskets, sealing, or other means to close gaps around the inserted filters to and prevents air from bypassing the
<br />
<br />2022 Single-Family Residential Mandatory Requirements Summary
<br />5/6/22
<br />
<br />§ 150.0(m)13:
<br />Space Conditioning System Airflow Rate and Fan Efficacy.
<br />a hole for the placement of a static pressure probe, or a permanently installed static pressure probe in the supply plenum. Airflow must
<br />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
<br />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
<br />cooling capacity, and an air-handling unit fan efficacy ≤ 0.62 watts per CFM. Field verification testing is required in accordance with
<br />Reference Residential Appendix RA3.3. *
<br />
<br />
<br />Ventilation and Indoor Air Quality:
<br />§ 150.0(o)1: Requirements for Ventilation and Indoor Air Quality
<br />Ventilation and Acceptable Indoor Air Quality in Residential Buildings subject to the amendments specified in § 150.0(o)1. *
<br />§ 150.0(o)1B: Central Fan Integrated (CFI) Ventilation Systems.
<br />dwelling unit ventilation airflow required per §150.0(o)1C. A motorized damper(s) must be installed on the ventilation duct(s) that
<br />prevents all airflow through the space conditioning duct system when the damper(s) is closed andcontrolled per §150.0(o)1Biii&iv. CFI
<br />ventilation systems must have controls that track outdoor air ventilation run time, and either open or close the motorized damper(s) for
<br />
<br />§ 150.0(o)1C:
<br />Whole-Dwelling Unit Mechanical Ventilation for Single-Family Detached and townhouses .
<br />and attached dwelling units not sharing ceilings or floors with other dwelling units, occupiable spaces, public garages, or commercial
<br />spaces must have mechanical ventilation airflow specified in § 150.0(o)1Ci-iii.
<br />Local Mechanical Exhaust.
<br />controlled exhaust system meeting requirements of §150.0(o)1Giii,enclosed kitchens and bathrooms can use demand-controlled or
<br />continuous exhaust meeting §150.0(o)1Giii-iv. Airflow must be measured by the installer per §150.0(o)1Gv, and rated for sound per
<br />Airflow Measurement and Sound Ratings of Whole-Dwelling Unit Ventilation Systems.
<br />be measured by using a flow hood, flow grid, or other airflow measuring device at the fan’s inlet or outlet terminals/grilles per Reference
<br />Residential Appendix RA3.7. Whole-Dwelling unit ventilation systems must be rated for sound per ASHRAE 62.2 §7.2 at no less than the
<br />§ 150.0(o)2: Field Verification and Diagnostic Testing.
<br />and HRV and ERV fan efficacy must be verified in accordance with Reference Residential Appendix RA3.7. Vented range hoods
<br />must be verified per Reference Residential Appendix RA3.7.4.3 to confirm if it is rated by HVI or AHAM to comply with the airflow
<br />
<br />Pool and Spa Systems and Equipment:
<br />
<br />§ 110.4(a):
<br />Certification by Manufacturers. with the Appliance Efficiency Regulations and listing in MAEDbS; 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
<br />§ 110.4(b)1: Piping.
<br />Covers.
<br />§ 110.4(b)3: Directional Inlets and Time Switches for Pools.
<br />Pilot Light.
<br />§ 150.0(p): Pool Systems and Equipment Installation. *
<br />Lighting:
<br />
<br />§ 110.9:
<br />Lighting Controls and Components.
<br /> *
<br />§ 150.0(k)1A: Luminaire Efficacy.
<br />range hoods, bath vanity mirrors, and garage door openers; navigation lighting less than 5 watts; and lighting internal to drawers, cabinets, and linen
<br />Screw based luminaires.
<br />§ 150.0(k)1C: Recessed Downlight Luminaires in Ceilings.
<br />§ 150.0(k)1D: Light Sources in Enclosed or Recessed Luminaires.
<br />§ 150.0(k)1E: Blank Electrical Boxes. luminaire or other device shall be no more than the number of bedrooms. These boxes must be served by a dimmer, vacancy sensor
<br />§ 150.0(k)1F: Lighting Integral to Exhaust Fans. *
<br />2022 Single-Family Residential Mandatory Requirements Summary
<br />5/6/22
<br />Screw based luminaires.
<br />§ 150.0(k)1H:
<br />Light Sources in Enclosed or Recessed Luminaires.
<br />elevated temperature requirements, including marking requirements, must not be installed in enclosed or recessed luminaires.
<br />§ 150.0(k)1I: Light Sources in Drawers, Cabinets, and Linen Closets. Light sources internal to drawers, cabinetry or linen closets are not required
<br />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
<br />power, emit no more than 150 lumens, and are equipped with controls that automatically turn the lighting off when the drawer, cabinet or
<br />Interior Switches and Controls. All forward phase cut dimmers used with LED light sources must comply with NEMA SSL 7A.
<br />§ 150.0(k)2B: Interior Switches and Controls. *
<br />§ 150.0(k)2A: Accessible Controls.
<br />§ 150.0(k)2B: Multiple Controls.
<br />Mandatory Requirements.
<br />§ 150.0(k)2D:
<br />Energy Management Control Systems.
<br />occupancy, and control requirements if it provides the functionality of the specified control per § 110.9 and the physical controls specified
<br />§ 150.0(k)2E:
<br />Automatic Shutoff Controls.
<br />must be controlled by an occupancy or vacancy sensor providing automatic-off functionality. Lighting inside drawers and cabinets with
<br />§ 150.0(k)2F: Dimmers. mounted dimming controls that allow the lighting to be manually adjusted up and down. Forward phase cut dimmers controlling LED light
<br />§ 150.0(k)2K: Independent controls.
<br />§ 150.0(k)3A:
<br />Residential Outdoor Lighting.
<br />other buildings on the same lot, must have a manual on/off switch and either a photocell and motion sensor or automatic time switch
<br />control) or an astronomical time clock. An energy management control system
<br />§ 150.0(k)4: Internally illuminated address signs.
<br />§ 150.0(k)5: Residential Garages for Eight or More Vehicles.
<br />Solar Readiness:
<br />
<br />§ 110.10(a)1:
<br />Single-family Residences.
<br />application for a tentative subdivision map for the residences has been deemed complete and approved by the enforcement agency,
<br />§110.10(b)1A:
<br />Minimum Solar Zone Area.
<br />access, pathway, smoke ventilation, and spacing requirements as specified in Title 24, Part 9 or other parts of Title 24 or in any
<br />requirements adopted by a local jurisdiction. The solar zone total area must be comprised of areas that have no dimension less than 5
<br />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
<br />square feet each for buildings with roof areas greater than 10,000 square feet. For single-family residences, the solar zone must be
<br />located on the roof or overhang of the building and have a total area no less than 250 square feet. *
<br />§ 110.10(b)2: Azimuth.
<br />§ 110.10(b)3A: Shading. *
<br />§ 110.10(b)3B:
<br />Shading. horizontal distance of the height difference between the highest point of the obstruction and the horizontal projection of the nearest point of the
<br /> *
<br />§ 110.10(b)4: Structural Design Loads on Construction Documents.
<br />§ 110.10(c):
<br />Interconnection Pathways.
<br />pathway reserved for routing of conduit from the solar zone to the point of interconnection with the electrical service; and for single-family
<br />§ 110.10(d): Documentation. provided to the occupant.
<br />Main Electrical Service Panel.
<br />§ 110.10(e)2: Main Electrical Service Panel.
<br />circuit breaker for a future solar electric installation. The reserved space must be permanently marked as “For Future Solar Electric.”
<br />Electric and Energy Storage Ready:
<br />2022 Single-Family Residential Mandatory Requirements Summary
<br />5/6/22
<br />§ 150.0(s) Energy Storage System (ESS) Ready.
<br />equipment with backed up capacity of 60 amps or more and four or more ESS supplied branch circuits, or a dedicated raceway from the
<br />main service to a subpanel that supplies the branch circuits in § 150.0(s); at least four branch circuits must be identified and have their
<br />source collocated at a single panelboard suitable to be supplied by the ESS, with one circuit supplying the refrigerator, one lighting circuit
<br />near the primary exit, and one circuit supplying a sleeping room receptacle outlet; main panelboard must have a minimum busbar rating of
<br />225 amps; sufficient space must be reserved to allow future installation of a system isolation equipment/transfer switch within 3’
<br />§ 150.0(t) Heat Pump Space Heater Ready.
<br />unobstructed 240V branch circuit wiring installed within 3’ of the furnace with circuit conductors rated at least 30 amps with the blank cover
<br />identified as “240V ready;” and a reserved main electrical service panel space to allow for the installation of a double pole circuit breaker
<br />
<br />§ 150.0(u) Electric Cooktop Ready.
<br />240V branch circuit wiring installed within 3’ of the cooktop with circuit conductors rated at least 50 amps with the blank cover identified as
<br />“240V ready;” and a reserved main electrical service panel space to allow for the installation of a double pole circuit breaker permanently
<br />
<br />§ 150.0(v) Electric Clothes Dryer Ready.
<br />dedicated unobstructed 240V branch circuit wiring installed within 3’ of the dryer location with circuit conductors rated at least 30 amps
<br />the blank cover identified as “240V ready;” and a reserved main electrical service panel space to allow for the installation of a double pole
<br />
<br />
<br /> *Exceptions may apply.
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