California CSLB Lathing and Plastering Contractor D-35 / C-61 Attorney Fee Petition Mechanics: Tyler Odyssey Civil Complaint Date as Primary Welch Anchor, CSLB License Check (D-35 / C-61) as Secondary Anchor (THE ONLY D-35 Lathing and Plastering Page in This Series — DISTINCT FROM C-35 Lathing — ONLY Page With ASTM C926 Application of Portland Cement-Based Plaster Advisory [THE ONLY PAGE in the Fee-Petition-Mechanics Series With an ASTM C926 Advisory — PURE KETCHUM] and ASTM C1063 Lathing and Furring Installation Advisory; AHJ Building Permit as Second Institutional Anchor; Plaster Delamination From Single-Coat Application / Metal Lath Corrosion From Missing Vapor Barrier / Stucco Cracking From Control Joint Omission Three-Track Harm; Bus. & Prof. Code § 7031(b) Disgorgement), CLRA § 1780 Mandatory Attorney Fees

Statutory Framework: Bus. & Prof. Code § 7028, D-35 / C-61 Lathing and Plastering, ASTM C926 Advisory, ASTM C1063 Advisory, AHJ Permit Advisory, § 7031(b) Disgorgement, and CLRA § 1780 Mandatory Attorney Fees

California Business and Professions Code § 7028 prohibits unlicensed contracting. The CSLB D-35 (Lathing and Plastering) limited specialty designation under C-61 authorizes: residential exterior stucco repair including spall patching, hairline crack injection, and section replacement; exterior stucco re-coat application (brown coat and finish coat over existing sound scratch coat); interior lime putty plaster patching on historic plaster walls; scratch/brown/finish three-coat portland cement stucco application on residential additions; metal lath installation incidental to the stucco repair scope; and application of pre-mixed finish coat textures (smooth trowel, dash, sand float). D-35 is distinct from C-35 (Lathing and Plastering), which covers full lathing and plastering including EIFS system installation and design, spray-applied intumescent fireproofing (cellulosic and hydrocarbon rating), gypsum plaster interior partition systems, and lathing for multi-story commercial buildings — work requiring engineering coordination beyond residential stucco repair scope.

ASTM C926 Standard Specification for Application of Portland Cement-Based Plaster is a private standard of ASTM International — NOT a California statute, NOT California administrative code, NOT a federal regulation. ASTM C926 specifies: a mandatory 3-coat exterior stucco system for wood-frame construction — (1) scratch coat: minimum 3/8 inch thickness applied over metal lath, rodded to level, keyed by raking with scratch tool to provide mechanical bond key for brown coat, cured 24–48 hours before next coat; (2) brown coat: minimum 3/4 inch total thickness measured from the lath face to the brown coat surface, applied after scratch coat has partially stiffened, rodded to a true plane, cured minimum 7 days before finish coat; (3) finish coat: minimum 1/8 inch applied after brown coat 7-day cure; aggregate proportions — sand-to-portland ratio by volume maximum 3 parts sand to 1 part portland for scratch and brown coat; angle bead at all external corners; weep screed at stucco base (1 inch minimum above grade or above impervious surface). PURE KETCHUM: ASTM C926 is a private ASTM International standard — it creates no private civil right of action and no mandatory attorney fee-shifting mechanism for property owners against unlicensed California D-35/C-61 plastering contractors.

ASTM C1063 Standard Specification for Installation of Lathing and Furring to Receive Interior and Exterior Portland Cement-Based Plaster is a private standard of ASTM International — NOT a California statute. ASTM C1063 specifies: metal lath selection — 2.5 lb/sq yd self-furring expanded metal lath for 16-inch on-center framing; 3.4 lb/sq yd flat rib lath for 24-inch on-center framing; Grade D building paper — minimum 2 layers over wood-frame substrates (outermost layer minimum 10-minute paper; innermost layer Grade D kraft 60-minute paper), minimum 1 layer over CMU; lath fastening — 1.5-inch roofing nails or staples at maximum 7-inch centers on studs, maximum 9-inch centers on horizontal furring; lath laps — minimum 1/2 inch at end laps and minimum 1 inch at side laps; metal corner bead at all re-entrant corners and external corners; control joint installation — maximum 144 square feet per panel area and maximum 18 linear feet between joints in horizontal or vertical dimension; inside corner lath without bead (lath bent at corner, not cut). AHJ building permit constitutes the second institutional anchor, confirming whether required permits were obtained and whether licensed contractor credentials were verified at time of permit issuance.

Three Unique Distinctions in the Fee-Petition-Mechanics Series

• THE ONLY PAGE IN THE FEE-PETITION-MECHANICS SERIES with ASTM C926 APPLICATION OF PORTLAND CEMENT-BASED PLASTER ADVISORY — private ASTM International standard; mandatory 3-coat exterior stucco system: scratch coat ≥3/8 inch keyed + brown coat ≥3/4 inch total from lath face + finish coat ≥1/8 inch after 7-day brown coat cure; aggregate proportions max 3:1 sand:portland by volume; weep screed at stucco base; angle bead at external corners; PURE KETCHUM — ASTM C926 is a private ASTM International standard, not a California statute, not California administrative code, creating no private civil right of action and no mandatory attorney fee-shifting mechanism; plaster delamination and stucco system replacement costs are recoverable as CLRA actual damages: the ASTM C926 advisory generates pre-complaint research hours: (a) confirming CSLB C-61/D-35 license status; (b) reviewing any photos or records from installation showing coat sequence; (c) performing sounding test (tapping installed stucco with rubber mallet to identify hollow delaminated areas by sound change); (d) coring stucco sample to measure total thickness and count coat layers; (e) photographing map cracking pattern indicative of single-coat application failure; (f) retaining a licensed plaster contractor or building envelope consultant to provide causation opinion; (g) quantifying stucco system replacement cost as CLRA actual damages.
• THE ONLY PAGE IN THE FEE-PETITION-MECHANICS SERIES with ASTM C1063 INSTALLATION OF LATHING AND FURRING ADVISORY — private ASTM International standard; metal lath selection: 2.5 lb/sq yd self-furring expanded metal for 16-inch o.c. framing; Grade D building paper: 2 layers over wood frame (10-min outer + 60-min inner); lath fastening: max 7 inch centers on studs; lath lap: 1/2 inch end, 1 inch side; metal corner bead at all external corners; control joint at max 144 sq ft panel, max 18 LF; PURE KETCHUM — ASTM C1063 is a private ASTM International standard, not a California statute, not California administrative code, creating no private civil right of action; metal lath corrosion from missing vapor barrier causes plaster fallout — structural repair and mold remediation costs are recoverable as CLRA actual damages; DISTINCT FROM ASTM C926 advisory [ASTM C926 covers plaster application (coat thickness, aggregate, sequence); ASTM C1063 covers lath and furring installation (lath type, vapor barrier, fastening, control joints)]: the ASTM C1063 advisory generates independent documentation: (a) inspecting accessible wall cavities (through cleanout openings, at electrical outlets) to determine whether Grade D building paper was installed behind lath; (b) reviewing any photos from wall framing inspection showing lath installation; (c) inspecting metal corner bead for corrosion indicators of moisture infiltration; (d) measuring control joint spacing on stucco panels to confirm ASTM C1063 144 sq ft / 18 LF maximum compliance; (e) retaining a building envelope consultant to provide opinion on whether missing vapor barrier caused observed lath corrosion and plaster failure.
• THE ONLY page with PLASTER DELAMINATION FROM SINGLE-COAT APPLICATION / METAL LATH CORROSION FROM MISSING GRADE D BUILDING PAPER STRUCTURAL FALLOUT / STUCCO CRACKING FROM CONTROL JOINT OMISSION WATER INTRUSION MOLD three-track harm — DISTINCT FROM C-35 Lathing and Plastering [C-35 addresses full commercial lathing including EIFS design and spray-applied fireproofing; D-35 addresses residential stucco repair and limited specialty installation without system design]: Track 1 — PLASTER DELAMINATION FROM SINGLE-COAT APPLICATION (ASTM C926 3-COAT MINIMUM VIOLATED) → INTERNAL HYDRAULIC PRESSURE DURING CURE → MAP CRACKING → DELAMINATION FROM METAL LATH SUBSTRATE → DEBRIS HAZARD + WATER INFILTRATION: an unlicensed D-35/C-61 who applies a single thick coat of exterior stucco (marketing it as "one-coat system" without employing the ASTM C926 mandatory scratch/brown/finish sequence) creates a plaster system where excess water from the high water-cement ratio of the single thick coat cannot escape uniformly; during the accelerated cure of the outer surface while the interior remains plastic, hydraulic differential pressure develops across the coat thickness; map cracking (a fine network of diagonal cracks across the stucco panel surface) appears within 7–30 days; affected areas delaminate from the metal lath within 6–18 months; falling stucco chunks from second-story walls present a pedestrian debris hazard; stucco removal and three-coat re-application costs range from $7,500–$40,000 for a typical residential elevation; Track 2 — METAL LATH CORROSION FROM MISSING ASTM C1063 GRADE D BUILDING PAPER → GALVANIZED COATING OXIDIZES → RUST EXPANSION FRACTURES STUCCO → STRUCTURAL PLASTER FALLOUT + WALL CAVITY MOLD: an unlicensed D-35/C-61 who installs metal lath over a wood-frame wall without the ASTM C1063 required two-layer Grade D building paper creates a direct moisture pathway from the wet portland cement plaster mix (and from post-installation rainwater) into contact with the galvanized metal lath; galvanized coating oxidizes within 2–5 years of continuous moisture exposure; rust products occupy approximately 4 times the volume of the original metallic iron, generating radial expansion stress that fractures the surrounding plaster from the lath wires; fractured stucco separates from the lath as chunks; simultaneously, moisture penetrating the unprotected wood sheathing and framing behind the lath initiates IICRC S520-scale mold colonization in the wall cavity; mold remediation plus complete stucco system replacement typically costs $12,000–$55,000; Track 3 — CONTROL JOINT OMISSION FROM ASTM C1063 REQUIREMENT (MAX 144 SQ FT / MAX 18 LF) → THERMAL AND MOISTURE CYCLING STRESS EXCEEDS STUCCO TENSILE STRENGTH → DIAGONAL SHEAR CRACKING AT STRESS CONCENTRATIONS → THROUGH-CRACKS → WATER INFILTRATION → WOOD SHEATHING DECAY AND MOLD: an unlicensed D-35/C-61 who applies stucco over large continuous panel areas without installing ASTM C1063 control joints (maximum 144 sq ft per panel with maximum 18 linear feet between horizontal and vertical joints) eliminates the expansion relief mechanism that accommodates thermal and moisture cycling; stucco panels exceeding these limits develop diagonal shear cracks propagating from stress concentration points — window and door corner returns, changes in substrate material (wood to CMU), or wall penetrations; through-cracks allow bulk water infiltration at the wall face; water behind stucco wicks into wood sheathing causing decay and initiates mold colonization requiring wall reconstruction costing $10,000–$45,000.

PURE KETCHUM for Bus. & Prof. Code § 7028 D-35 / C-61 Lathing and Plastering violations: ASTM C926 is a private ASTM International standard — no private civil right of action, no mandatory attorney fee-shifting; ASTM C1063 is a private ASTM International standard — PURE KETCHUM; CBC Title 24 Part 2 is California administrative building code — administrative enforcement; CLRA § 1780 mandatory attorney fee entitlement is pure Ketchum; Ketchum v. Moses 24 Cal.4th 1122 (2001); PLCM Group Inc. v. Drexler 22 Cal.4th 1084 (2000); Hensley v. Eckerhart 461 U.S. 424 (1983); Missouri v. Jenkins 491 U.S. 274 (1989) fees-on-fees.

Primary Welch Anchor: Tyler Odyssey Civil Complaint Filing Date

The Tyler Odyssey civil complaint filing date is the primary Welch temporal anchor for D-35 lathing and plastering matters. The attorney files after confirming CSLB C-61/D-35 license status, performing stucco sounding test to identify delaminated areas, core-drilling stucco sample to confirm coat count and total thickness, photographing map cracking and delamination pattern, retaining a building envelope consultant for causation opinion, inspecting for lath corrosion indicators and control joint spacing, quantifying stucco system replacement cost, and serving the CLRA § 1782 demand. The CSLB D-35/C-61 License Check date is the secondary Welch anchor. Ketchum v. Moses 24 Cal.4th 1122 (2001); PLCM Group Inc. v. Drexler 22 Cal.4th 1084 (2000).

Secondary Anchor: CSLB License Check (D-35 / C-61 Lathing and Plastering) — THE ONLY D-35 Specialty Anchor in the Fee-Petition-Mechanics Series

The CSLB License Check must confirm the C-61/D-35 Lathing and Plastering limited specialty designation — distinct from C-35 (Lathing and Plastering full specialty, which covers EIFS design and spray-applied fireproofing). Three scenarios generate § 7028 liability: (a) no CSLB license at all; (b) expired, suspended, or revoked C-61/D-35 license; (c) a painting contractor (C-33) or general handyman who performs stucco patching or re-coat application specifically requiring the D-35 limited specialty. This page is THE ONLY D-35 Lathing and Plastering specialty anchor in the fee-petition-mechanics series — distinct from C-35 Lathing and Plastering.

Billing Gap 1 — CSLB D-35/C-61 License Check, AHJ Building Permit Review, ASTM C926 Three-Coat Documentation, ASTM C1063 Lath and Vapor Barrier Inspection, and § 1782 Demand (5.25 hrs/yr = $1,575–$2,625)

The first billing gap covers pre-complaint advisory for D-35 lathing and plastering matters.

• Searching CSLB License Check for C-61/D-35 designation and establishing the secondary Welch anchor: confirming D-35 limited specialty presence or absence; evaluating C-35 distinction (EIFS and fireproofing vs. residential stucco repair); confirming license status, bond, and workers compensation at contractors.ca.gov.
• Reviewing AHJ building permit records — second institutional anchor for D-35 matters: AHJ building permit records confirm whether a permit was obtained for the stucco application work; CBC requires permit for new stucco application over wood framing; permit records confirm whether D-35 license number was listed and whether lath inspection occurred.
• Performing ASTM C926 three-coat compliance investigation: sounding test to identify hollow delaminated areas; core drilling stucco sample at minimum three locations to confirm coat count and measure individual coat thickness against ASTM C926 minimums; photographing map cracking density and pattern; recording delaminated area percentage of total stucco surface.
• Performing ASTM C1063 lath and vapor barrier inspection: inspecting accessible wall cavities for Grade D building paper installation; measuring control joint spacing against ASTM C1063 144 sq ft and 18 LF maximums; checking metal corner bead installation at external corners; reviewing any framing inspection photos for lath type and fastening compliance.
• Serving CLRA § 1782 demand incorporating ASTM C926 and ASTM C1063 advisory analysis: demand specifies D-35 unlicensed contracting, identifies three harm tracks, demands disgorgement under § 7031(b), and specifies CLRA § 1780 mandatory attorney fees.

Billing Gap 2 — Active Litigation: Building Envelope Consultant, Mold Inspector, and Three-Track Damage Quantification (4.00 hrs/yr = $1,200–$2,000)

The second billing gap covers expert coordination across the three D-35 harm tracks.

• Retaining a licensed building envelope consultant or registered architect — to confirm ASTM C926 single-coat failure and ASTM C1063 lath deficiency: building envelope consultant provides opinion on map cracking causation (single-coat hydraulic failure vs. aggregate shrinkage cracking vs. substrate movement); confirms coat count and thickness from core samples; provides stucco system replacement scope and cost estimate.
• Retaining a certified industrial hygienist (CIH) for Track 2 wall cavity mold — confirming IICRC S520 mold scope: CIH performs air sampling and surface swab testing in wall cavities adjacent to lath corrosion areas; confirms mold species and colony forming unit (CFU) counts; provides IICRC S520 scope of remediation; quantifies mold remediation cost as CLRA actual damages.
• Track 3 water intrusion damage quantification from control joint omission: moisture meter survey of wood sheathing and framing exposed by core drilling at through-crack locations; calculating wood decay extent and structural repair cost; quantifying interior water damage from wall infiltration (drywall, insulation replacement).
• Settlement valuation incorporating all three harm tracks and CLRA § 1780 mandatory attorney fees: D-35 three-track settlement demand integrates stucco system replacement, mold remediation, and wall reconstruction costs.

Billing Gap 3 — CLRA § 1780 Fee Petition, Pure Ketchum Multiplier, Lodestar Documentation, and Missouri v. Jenkins Fees-on-Fees (4.00 hrs/yr = $1,200–$2,000)

The third billing gap covers fee recovery preparation across all three D-35 harm tracks.

• Documenting the CLRA § 1780 lodestar from the CSLB D-35/C-61 License Check date: AHJ building permit records search; stucco sounding test and core drilling coordination; ASTM C926 coat thickness analysis; ASTM C1063 vapor barrier and control joint inspection; building envelope consultant retention and coordination; CIH mold testing coordination; wall cavity moisture survey — all fee-petition-eligible.
• Briefing the pure Ketchum multiplier: novelty/difficulty — ASTM C926 three-coat sequence hydraulic pressure analysis (water-cement ratio effect on cure; differential surface cure rate; map cracking causation methodology); ASTM C1063 Grade D building paper requirement analysis (galvanized lath oxidation chemistry; rust expansion volumetric stress calculation; lath corrosion timeline from moisture exposure); control joint spacing analysis (thermal expansion coefficient of portland cement stucco; panel size contribution to cumulative stress; diagonal shear crack propagation pattern from corner stress concentration); IICRC S520 mold remediation scope methodology; Ketchum v. Moses 24 Cal.4th 1122 (2001); PLCM Group Inc. v. Drexler 22 Cal.4th 1084 (2000).
• Missouri v. Jenkins fees-on-fees for the fee petition: Missouri v. Jenkins 491 U.S. 274 (1989); Hensley v. Eckerhart 461 U.S. 424 (1983).

Total Annual Billing Gap — Three-Gap Summary

• Gap 1 (D-35 CSLB search, AHJ permit review, ASTM C926 coat inspection, ASTM C1063 lath/vapor barrier inspection, § 1782 demand): 5.25 hrs = $1,575–$2,625/yr
• Gap 2 (building envelope consultant, CIH mold inspector, water intrusion damage quantification): 4.00 hrs = $1,200–$2,000/yr
• Gap 3 (CLRA § 1780 fee petition, pure Ketchum multiplier, lodestar documentation, fees-on-fees): 4.00 hrs = $1,200–$2,000/yr
• Total: 13.25 hrs = $3,975–$6,625/yr untracked at $300–$500/hr median California solo practitioner rate