Specification Guide

01 91 13 — GENERAL COMMISSIONING Engage a Commissioning Authority (CxA) independent of the design and construction teams at or before schematic design. CxA credentials: ASHRAE CPMP, ACG CxA, or equivalent. Cx scope: mechanical, electrical, plumbing, building envelope, lighting controls, and renewable energy systems. Deliverables: Owner's Project Requirements (OPR) at SD; Basis of Design (BoD) review at DD; Functional Performance Testing report at substantial completion; Final Cx Report within 60 days of occupancy. [LEED EA Prereq: submit CxA contract and scope to LEED reviewer at permit.] 01 74 19 — CONSTRUCTION WASTE MANAGEMENT Submit Construction Waste Management Plan to Owner within 30 days of NTP. Provide on-site sorting for: dimensional lumber, metals, drywall, cardboard, concrete/masonry, and mixed recyclables. Document diversion by weight with hauler receipts. Submit monthly diversion reports. Target: minimum 75% diversion from landfill by weight. [LEED MR Credit: maintain separate receipts per material category; document total tonnage disposed vs. diverted.] 01 57 19 — TEMPORARY IAQ MANAGEMENT Implement SMACNA IAQ Guidelines for Occupied Buildings Under Construction, 2nd Ed., throughout all phases of interior rough-in and finish work. Cover and protect all duct and grille openings from dust throughout construction. Replace all HVAC filters at substantial completion with final rated filters. [LEED EQ Prereq: document daily protection log; conduct 14-day flush-out per LEED EQc3.2 or third-party IAQ testing prior to occupancy — coordinate with CxA for flush-out HVAC scheduling.] 01 78 23 — ENERGY AND COMMISSIONING DOCUMENTATION At substantial completion, Contractor shall deliver an Energy Documentation Package including: (1) equipment cut sheets for all major energy-consuming systems with rated efficiencies highlighted; (2) TAB Report; (3) CxA Final Report; (4) as-built thermal envelope summary confirming installed R-values and air barrier continuity; (5) blower door and duct leakage test results signed by tester. [AIA 2030: include projected annual EUI and 25-year carbon projection. LEED EA: provide energy model update confirming as-built compliance.]

03 30 00 — CAST-IN-PLACE CONCRETE (SLAB ON GRADE) Mix design: minimum 3,000 psi at 28 days (residential) / 4,000 psi (commercial floor slabs). Water-cementite ratio ≤ 0.50; ≤ 0.45 below-grade and exposed exterior. Specify 20–30% fly ash or slag cement replacement (ASTM C618 Class F fly ash or ASTM C989 Grade 100 slag) for embodied carbon reduction. Submit mix design with SCM source documentation 21 days prior to pour. 07 26 00 — BELOW-SLAB VAPOR RETARDER Vapor retarder: ASTM E1745 Class A, minimum 15-mil polyethylene (Stego Wrap 15-mil, Perminator 15-mil, or approved equal). Install directly below slab — not below granular fill layer. Lap seams minimum 6 inches; tape all seams, pipe penetrations, and column base penetrations with compatible tape. Extend up foundation wall minimum 6 inches; seal to foundation with compatible sealant at perimeter. Repair any punctures before pour with tape patch minimum 12 inches larger than damage. 07 21 00 — BELOW-SLAB AND PERIMETER INSULATION [Zone 4-8] Slab edge: extruded polystyrene (XPS), ASTM C578 Type IV, [R-value per project zone], installed vertically at perimeter from top of slab to frost depth or 4 feet minimum. Thermal break required — slab must not bear directly on foundation wall without insulating break. [Phius target: XPS R-10 (2") under full slab area in addition to perimeter, coordinate with structural footing bearing.] Protect all below-grade XPS with concrete board or protection board at backfill.

06 10 00 — ROUGH CARPENTRY (FRAMING LUMBER) Lumber: structural grade per species and use, grade-stamped per WWPA or NLGA grading rules. Moisture content: ≤ 19% at time of enclosure (IRC R318). FSC-certified lumber required [or preferred] — provide chain-of-custody documentation from supplier. No old-growth lumber. Dimensional lumber: No. 2 minimum for stud framing; No. 1 or LVL at bearing locations per drawings. Preserve existing trees in immediate vicinity of structure — coordinate laydown areas with Owner. 06 16 00 — SHEATHING Wall sheathing: APA-rated OSB, 7/16" minimum, Exposure 1, with APA performance category per structural drawings. Nailing: 8d common at 6" o.c. edges / 12" o.c. field (unless noted otherwise on structural for shear wall zones). Air barrier integration: apply manufacturer-specified tape to all panel joints, window and door rough openings, and penetrations within 48 hours of installation. [ZIP System: use ZIP System tape at all seams; apply roller per manufacturer instructions. Field cuts: apply flashing tape immediately.] 06 17 53 — STRUCTURAL COMPOSITE LUMBER (where applicable) LVL and LSL beams: per manufacturer Span Tables; ICC evaluation report to be submitted at permit. I-joists: APA PRI-400; blocking required at all bearing points, end walls, and web stiffeners at point loads — indicate on structural. Factory knockout locations for MEP to be coordinated with mechanical, electrical, and plumbing drawings at DD — provide shop drawings for review. [Mass timber: CLT panels per ANSI/APA PRG-320; require EPD and FSC or PEFC certification; submit EPD to Owner for AIA 2030 / embodied carbon tracking.]

07 21 00 — THERMAL INSULATION (ABOVE-GRADE WALL) Insulation: [zone-specific R-value — load a project to fill]. [If continuous insulation required: specify closed-cell spray polyurethane foam (ccSPF, ASTM C1029 Type II) or polyisocyanurate rigid board (ASTM C1289) outboard of framing. Minimum R-value per IECC Table R402.1.2. Install in continuous layer with no gaps at fasteners or Z-channels.] Batt insulation: friction-fit to fill cavity 100% — no voids, no compression. Third-party inspection required prior to insulation cover at framing rough-in stage. 07 21 00 — THERMAL INSULATION (ATTIC/ROOF — VENTED ASSEMBLY) Blown-in insulation: [zone-specific R-value] minimum at finished depth. Preferred product: blown-in cellulose (recycled content, no HFC blowing agents, borate fire retardant, ASTM C739; CIMA-certified installer required). Fiberglass blown-in is an acceptable alternate. Install baffles at all eave vents to maintain ventilation channel minimum 1" clear. Depth markers at 50 sq ft intervals; confirm installed R-value with installer depth worksheet at substantial completion. Do not compress below labeled R-value. 07 21 00 — THERMAL INSULATION (ATTIC/ROOF — UNVENTED ASSEMBLY) Unvented (hot roof / conditioned attic) assemblies must comply with IRC R806.5 / IECC R402.2.4. Three acceptable approaches — select per project vapor zone and certification requirements: (A) Flash-and-fill: closed-cell SPF at roof deck — Zone 1–4 minimum R-20, Zones 5–8 minimum R-25; balance of required R-value with blown-in cellulose or mineral wool batt below, between rafters. SPF installer must hold SPFA certification; require third-party air quality test 30 days post-application. (B) Mineral wool board at deck (Rockwool Hardrock DD or equivalent, ASTM C665, non-combustible per ASTM E136) with mineral wool batts or blown-in cellulose in rafter bays below — preferred for projects requiring LBC, LEED low-carbon materials, or SPF avoidance. Mineral wool is vapor-open — confirm dew point compliance per IECC R806.5 Table R806.5 for climate zone before specifying without supplemental vapor control layer. (C) Polyiso or EPS rigid board above deck (exterior) with mineral wool batts between rafters (interior) — calculate minimum exterior R-value ratio per IECC R806.5 for climate zone to maintain deck temperature above dew point. For all unvented assemblies: require energy model confirming dew point compliance; third-party inspection required prior to cover. 07 27 00 — AIR BARRIERS, AIR SEALING, AND VAPOR RETARDERS Air leakage performance target: [≤ 3 ACH50 code / ≤ 0.60 ACH50 ENERGY STAR / ≤ 0.06 ACH50 Phius]. Specify one primary air barrier strategy: (A) fluid-applied membrane on sheathing; (B) integrated sheathing system (ZIP System or equivalent); or (C) interior drywall with careful sealing at all penetrations and plates. Tape or flash all window and door rough openings, rim joists, penetrations through top and bottom plates, and electrical/plumbing penetrations. Test per ASTM E779 at pre-drywall stage — notify testing agent minimum 48 hours in advance. 07 46 00 / 07 52 00 — ROOFING Specify roofing material, SRI, and fire rating on drawings. [Cool roof requirement: SRI ≥ 82 low-slope, ≥ 39 steep-slope for LEED SS Credit.] [Wildfire/FORTIFIED zones: Class A fire-rated assembly required — no wood shingles or shakes regardless of fire retardant treatment. Impact-resistant Class 4 shingles required for IBHS FORTIFIED in hail exposure zones.] Ice and water shield: ASTM D1970, minimum 24" from eave or to point 24" inside interior wall, whichever is greater (Zones 5-8 minimum).

08 50 00 — WINDOWS Performance: [zone-specific U-factor and SHGC — load a project to fill]. All windows NFRC-labeled; include NFRC certification label in submittals. Glazing specifications to be confirmed per orientation: south-facing, east/west, and north have different optimal SHGC values — see Design Strategies page zone SHGC table. [Phius: triple-pane required in Zones 5+; provide PHPP window entry data (Uw, g-value) on submittals.] [FORTIFIED Silver/Gold: impact-rated per ICC 500 / ASTM E1886/E1996, or rated storm shutters — specify DP rating from ASCE 7 wind speed for site.] Provide window schedule on drawings with unit sizes, rough opening dimensions, U-factor, SHGC, and DP rating for each unit type. 08 11 16 — EXTERIOR DOORS Minimum performance: [Zone 1-4: U-0.20 / Zone 5-8: U-0.17]. Air leakage: ≤ 0.50 CFM/ft perimeter at 0.30 in. w.g. test pressure (AAMA 107). Sliding glass doors: ≤ 0.30 CFM/ft. Require AAMA or NFRC ratings on submittals. Weatherstripping: replaceable compression type at all exterior door perimeters; continuous threshold at door bottoms — no visible light gap. [FORTIFIED: same impact-rating requirement as windows applies to all exterior doors. Garage doors: require AAMA 512 rated units in wind design areas.] 08 31 00 — ATTIC ACCESS AND PULL-DOWN STAIRS All pull-down attic stair units: insulated cover assembly, minimum R-value equivalent to surrounding assembly. Gasketed rigid panel type (Access Dome, Battic Door, or equivalent) preferred — avoids foam deterioration of roll-type covers. At attic hatch (no pull-down stair): rigid insulated cover, minimum 2" rigid foam, gasketed with weatherstripping. Inspect and test per ENERGY STAR Thermal Enclosure Checklist at framing rough-in stage.

09 90 00 — PAINTS AND COATINGS All interior paints, stains, and coatings: VOC content ≤ 50 g/L (flat) / ≤ 150 g/L (non-flat) per SCAQMD Rule 1113 and CARB SCM. All exterior coatings: ≤ 100 g/L (flat) / ≤ 200 g/L (non-flat). Require product data sheets confirming VOC content at submittal stage — not just manufacturer's general literature. [LEED v4.1 EQ Credit: VOC content verified per SCAQMD Rule 1113; submit product list with VOC values for each coating used at each surface type. GreenSeal GS-11 certified products preferred.] 09 20 00 — GYPSUM BOARD AND JOINT TREATMENT Gypsum board: ASTM C1396 standard; use mold-resistant (Type X or MR) in all bathrooms, utility rooms, and other humid-area locations per IRC R702.3. Joint compound: low-VOC (≤ 50 g/L) — note that pre-mixed joint compound can have high VOC content; verify and specify. [Embodied carbon: gypsum board contains significant embodied carbon — specify products with EPDs for AIA 2030 tracking where contractor can source competitively.] 09 60 00 — FLOORING Carpet: CRI Green Label Plus certified. Carpet cushion: CRI Green Label certified. Adhesive: ≤ 50 g/L. Require CRI certificate at procurement submittal. Composite wood flooring (hardwood, bamboo, laminate): California ATCM Phase 2 / EPA TSCA Title VI compliant — CARB Phase 2 formaldehyde emission limits. FloorScore-certified products preferred. Require HPD (Health Product Declaration) or Declare label from manufacturer at submittal. [LBC Materials Petal: all composite wood must be certified compliant; prohibit urea-formaldehyde binders in all wood products.] 09 81 00 — ACOUSTIC INSULATION Interior partition batt: mineral wool (ASTM C665 Type I) or fiberglass (formaldehyde-free preferred) at all party walls, corridor walls, and bedroom demising partitions. Install full-height cavity fill — 3.5" batt at 2x4 framing minimum, no air gaps at top and bottom plates. Coordinate acoustic batt specification with fire-rated assembly listings (UL, GA) — some fire-rated assemblies require specific products. STC ratings per drawings and specifications for party walls and noise-sensitive spaces.

21 13 16 — RESIDENTIAL FIRE SUPPRESSION (NFPA 13D) [For one- and two-family dwellings] Automatic fire sprinkler system: NFPA 13D, current adopted edition, design-build by licensed fire protection contractor. System type: wet pipe residential. Design criteria: residential sprinkler heads K-factor per NFPA 13D Chapter 8; water supply test at meter required — provide within 90 days of design submission. Coordinate with domestic water service: combined domestic/fire service with backflow preventer where local water supply permits. Concealed residential-type heads at all finished ceilings — coordinate trim color with interior finish schedule. Attic and crawl space exemptions per NFPA 13D Section 8.3 apply. Deliver NFPA 13D Certificate of Completion to Owner at substantial completion — required for insurance premium discount documentation. 21 13 13 — COMMERCIAL FIRE SUPPRESSION (NFPA 13) [For commercial, institutional, and multifamily 3+ stories] Automatic fire sprinkler system: NFPA 13, current adopted edition. System type: wet pipe (dry pipe at unconditioned spaces exposed to freezing). Design by licensed fire protection engineer — hydraulic calculations required at permit. Design density and area of application per NFPA 13 Table 19.3.3.1 for occupancy classification. Dedicated fire service with backflow preventer per NFPA 13 Section 6.1 — coordinate with civil engineer for utility service sizing. Contractor submittals: hydraulic calculations, sprinkler head schedule, pipe sizing diagram, hanger details, and ceiling coordination drawings. Acceptance testing: hydrostatic test at 200 psi for 2 hours per NFPA 13 Section 28.2. Coordinate head locations with reflected ceiling plan and HVAC supply/return diffuser locations at CD stage — no heads within 6" of supply diffusers.

22 40 00 — PLUMBING FIXTURES All lavatory faucets: EPA WaterSense labeled, maximum 0.50 GPM (private) / 0.20 GPM (metered, commercial). All showerheads: WaterSense labeled, maximum 1.75 GPM; multi-port showerheads measured as combined flow. All water closets: WaterSense labeled, maximum 1.28 GPF; dual-flush (0.8/1.28 GPF) preferred. Specify fixture model numbers on plumbing fixture schedule on drawings — do not allow contractor substitution of unlabeled units. Require WaterSense label documentation at submittal. 22 33 00 — DOMESTIC WATER HEATERS Heat pump water heater (HPWH) required for all electric water heating. Minimum UEF 3.0 (≥ 40-gallon units) or per ENERGY STAR certification list. Install in conditioned or semi-conditioned space with minimum 700-1,000 cu ft of air volume; or provide dedicated outdoor air duct kit per manufacturer. Do not locate adjacent to bedroom walls — HPWH operating sound level 45–50 dB. Drain pan and drain to floor drain required. [IRA Section 25C: ENERGY STAR-certified HPWH qualifies for 30% federal tax credit up to $600. Inform owner at equipment selection.] [Phius: HPWH required in all climate zones with electric domestic hot water. Natural gas: high-efficiency condensing unit (EF ≥ 0.80) only.] 22 11 16 — HOT WATER DISTRIBUTION PIPING Insulate all hot water supply piping minimum R-4 (1" foam pipe insulation) for full run length — not just first 8 feet. Demand-controlled recirculation preferred over continuous: sensor-activated or timer-controlled at fixture; avoids continuous heat loss from recirculation. [LEED WE Credit: measure delivery time — maximum 10-15 seconds from any fixture to meet WaterSense hot water delivery criteria.] Pipe insulation at all accessible locations: verify installation before closing walls.

23 81 00 — HEAT PUMPS (AIR-SOURCE) Equipment performance: minimum SEER2 [15.2 ENERGY STAR / 18 recommended / per project cert goal], HSPF2 ≥ 7.8. [Zones 5-7: cold-climate heat pump (CCHP) required — rated heating capacity at +5°F on equipment schedule. Specify rated capacity at +17°F and +5°F on equipment submittal.] Size per ACCA Manual J load calculation — do not exceed 115% of calculated peak load. Provide load calculation signed by licensed engineer or certified HVAC designer at permit. Equipment selection from AHRI certified directory. [Phius: size per PHPP heating and cooling load outputs.] 23 72 00 — AIR-TO-AIR ENERGY RECOVERY EQUIPMENT (ERV / HRV) Ventilation design: per ASHRAE 62.2-2022 (residential) or 62.1-2022 (commercial). Minimum airflow: 0.01 CFM/ft² + 7.5 CFM/person. [Climate recommendation: ERV (moisture transfer) for mixed and humid climates Zones 1-4; HRV (sensible only) for cold-dry climates Zones 5-7.] ERV/HRV unit: sensible recovery efficiency (SRE) ≥ 75% at ASHRAE standard test conditions. [Phius: Phius-certified component required — see phius.org component list.] MERV-13 filters on supply air minimum. Unit location: inside pressure boundary. Separate supply and return locations — minimum 10 ft apart to prevent short-circuit. Balanced flow (+/- 10% of nominal). Test airflows and document in Cx report. 23 31 00 — DUCTWORK AND AIR DISTRIBUTION Duct leakage performance: ≤ [4 CFM25/100 ft² total to outside — ENERGY STAR / 2 CFM25 — above code target]. All duct connections mechanically fastened and sealed with mastic sealant or UL 181 tape — no cloth duct tape. Insulate all ducts in unconditioned spaces: R-8 supply, R-6 return (IECC). [Phius: all ductwork must be inside pressure boundary — no ducts in attic, crawl space, or garage.] Test per ASTM E1554 at rough-in — before sheetrock. Record test results. Confirm all registers, boots, and diffusers sealed airtight at openings before final inspection.

25 10 00 — INTEGRATED AUTOMATION NETWORK (COMMERCIAL) Open-protocol building automation system (BAS): BACnet/IP (ASHRAE 135) or Modbus TCP — no proprietary communication protocols without written Owner approval. System integrator responsible for integration of HVAC, lighting, and energy metering under single operator interface. Remote access: web-based dashboard, no additional client software. Data trending: all analog points at 15-minute intervals minimum, stored 13 months minimum. Owner training: minimum 4-hour on-site session at substantial completion — record and deliver to Owner. CxA to include BAS control sequence functional performance testing in final Cx Report. 25 30 00 — SMART THERMOSTAT AND HVAC CONTROLS [Residential] Smart thermostat: ENERGY STAR-certified, Wi-Fi enabled (Ecobee SmartThermostat, Google Nest Thermostat E, or approved equal). Demand response (DR) capable — enroll in local utility DR program at Owner's direction at occupancy. Occupancy detection preferred over timer-only setback — specify sensor location per manufacturer. [Commercial] DDC controls per 23 09 13; BACnet integration required for all AHUs, VAV boxes, and ERVs. Demand control ventilation (DCV): CO2 sensors at occupied zones above 300 sqft — sensor located 3–6 ft above floor in occupied zone, not in return air stream. DCV setpoint: 800 ppm; reset to 100% OA above 1,100 ppm; reduce to minimum OA when unoccupied per ASHRAE 62.1 Table 6.2.2.2. [LEED EQ Enhanced Ventilation: DCV zones to be included in ventilation monitoring and trending via BAS.] 25 50 00 — GRID-INTERACTIVE ENERGY MANAGEMENT (where PV or battery is specified) Smart inverter: IEEE 1547 compliant, with communication interface per IEEE 2030.5 or SunSpec Modbus. Energy management system (EMS): coordinate PV production, battery state of charge, HVAC pre-conditioning schedule, and EV charging load priority. Load shift priority: (1) EV charging, (2) water heater, (3) HVAC pre-conditioning. Grid pricing integration: OpenADR 2.0 capable for utility demand response enrollment. Commissioning: EMS functional performance test to verify all load-shed and load-shift sequences under simulated grid signal — document in CxA Final Report.

26 51 00 — INTERIOR LIGHTING All permanently installed luminaires: LED, CRI ≥ 80 minimum (CRI ≥ 90 in residential living areas, food service, and retail). Color temperature: 2700-3000K residential / 3000-3500K commercial office and retail (confirm with Owner at SD). Prohibit incandescent and fluorescent (T8 and compact) in new construction — DOE 2023 prohibition effective January 2023. Minimum efficacy: 60 lumens per watt at fixture. Provide photometric calculations confirming foot-candle levels at work surfaces per IES guidelines for occupancy type. [LEED EQ: provide enhanced lighting controls documentation — individual task controls and group occupancy controls per LEED EQ Credit.] 26 09 23 — LIGHTING CONTROLS Occupancy/vacancy sensors required at: all individual offices, conference rooms, break rooms, restrooms, storage rooms, and utility spaces. Daylight-responsive controls (dimming) required in spaces with fenestration > 150 sq ft within 15 ft of windows (IECC C405). Specify sensor coverage zones — no dead zones in any controlled space. [LEED EQ: individual dimming controls at all workstations plus group occupancy sensors for enhanced lighting credit.] All sensors: manual-on / auto-off preferred for offices (vacancy sensor) — reduces wasted energy vs. auto-on/auto-off. 26 27 26 — EV CHARGING INFRASTRUCTURE Residential (single-family and multifamily): minimum one dedicated 240V / 50A branch circuit rough-in (conduit + wire + breaker, NEMA 14-50 receptacle) per garage bay. [Multifamily: 20% of total parking spaces per LEED LT EV Credit; minimum per NEC 625 / local amendment.] Commercial: [2-5% of spaces with EVSE per LEED; verify local AHJ requirement]. Coordinate panel capacity at permit — EV load must be included in service calculation. Provide J1772 Level 2 EVSE (or roughed conduit for future EVSE) at designated spaces; stub conduit to panel with circuit breaker space reserved. 26 09 13 — POWER METERING AND SUBMETERING Building-level revenue-grade meter: required for all commercial buildings. Submetering: per IECC C405.13 for buildings with lighting, HVAC, or process loads > 100 kW — separate meters at each major end use > 10% of total energy. [LEED EA Advanced Energy Metering: revenue-grade meters for whole building and each end use > 10%, trending to BAS at 15-minute intervals minimum.] [AIA 2030 reporting: whole-building meter data required for annual EUI reporting through AIA 2030 DDx.] Specify meter type, communication protocol (BACnet, Modbus), and data integration path to building automation system.

31 23 00 — EXCAVATION AND GRADING Final grading: minimum 5% slope away from building for first 6 ft from foundation (IRC R401.3); 2% minimum beyond to swale or street. No negative grade or ponding within 10 ft of foundation. Geotechnical: compaction testing at all fill areas — report to structural engineer of record prior to slab or foundation pour. [Flood zone: confirm finish floor elevation minimum 12" above base flood elevation (BFE) per FEMA FIRM — document on drawings and submit elevation certificate at permit. Coordinate with civil engineer for flood zone compliance.] 31 25 00 — EROSION AND SEDIMENT CONTROL SWPPP: required for all sites 1 acre or larger. Install erosion control at mobilization — silt fence at property perimeter and all storm inlets; stabilized gravel construction entrance. Inspect after each rain event 0.5" or greater and within 24 hours of an event 1.0" or greater. Document inspections in SWPPP log. Final stabilization: 70% vegetative cover or permanent hard surface before permit closeout and NPDES termination. [LEED SS Prereq: upload SWPPP documentation and erosion control inspection log to LEED Online at construction completion.] 32 14 13 — PERVIOUS CONCRETE PAVING (where specified) Mix design: 15–25% void ratio ASTM C94 pervious mix; aggregate ASTM C33. Subbase: 12" minimum clean crushed aggregate — confirm permeability rate with geotechnical engineer before design. No sealers on pervious concrete surface. Maintenance: annual vacuum sweep to clear voids; include schedule in Owner O&M manual. [LEED SS Rainwater Management: verify on-site retention of 95th percentile 24-hour storm event through infiltration calculations — submit to LEED reviewer with hydrologic analysis.] 32 92 00 — DROUGHT-TOLERANT LANDSCAPING [For LEED WE Outdoor Water Use Reduction credit or water-scarce jurisdictions] Irrigated area: eliminate turf from all non-use areas — parking islands, slopes over 3:1, utility strips, side yards under 8 ft wide. Plant species: native and adaptive drought-tolerant per regional palette (USDA PLANTS database for zone-appropriate species). Irrigation: smart controller with ET adjustment (ENERGY STAR or WaterSense certified — Rachio, Orbit B-Hyve, or approved equal). Distribution uniformity (DU) minimum 70%; schedule efficiency audit with irrigation contractor at punch list. [LEED WE: 30% reduction from LEED baseline irrigation — confirm with landscape architect water budget calculations at SD.] 32 93 00 — WILDFIRE DEFENSIBLE SPACE PLANTING [For WUI sites or projects pursuing IBHS Wildfire Prepared Home designation] Zone 0 (0–5 ft): non-combustible hardscape, stone, or gravel only. No wood mulch, no combustible plants, no wood lattice or trellises connected to structure. Zone 1 (5–30 ft): fire-resistant native species spaced so canopy does not touch. No ladder fuels — groundcover must not connect visually to shrubs above 18". No plants taller than 18" within 5 ft of windows or vents. Zone 2 (30–100 ft): remove dead or dying vegetation; limb trees to 6 ft from ground; tree canopy spacing minimum 10 ft between crowns on slopes under 20%, 20 ft on slopes above 20%. Maintain zones annually — show Zones 0, 1, and 2 on landscape plan and verify compliance with insurer and/or AHJ. [IBHS WPH: Zone 0–1 required for WPH Base; full Zone 2 (100 ft) required for WPH Plus.]