Asphalt shingles made from purchased asphaltic materials · California

GS II Inc - CertainTeed

Wilmington, CA · ~72 workers · 2 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.2
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

GS II Inc - CertainTeed runs at 128% of its industry's injury rate - more dangerous than the typical Asphalt shingles made from purchased asphaltic materials workplace, earning a grade D.

GS II Inc - CertainTeed: 4.2 TCR = 128% of Asphalt shingles made from purchased asphaltic materials BLS 3.3 · 2y Form 300A (see methodology below)

GS II Inc - CertainTeed safety composite

GS II Inc - CertainTeed scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 8%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

F

23/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 4.21 per 100 workers

Safer than 19% of industry peers

DART rate
F 5.43 per 100 workers

Safer than 8% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Rising injury rate

GS II Inc - CertainTeed: 3.0 → 5.4 TCR

Peak year 2024 @ 5.4 TCR · DART/TCR 1.29× in 2024

GS II Inc - CertainTeed's TCR rose 2.4 from 3.0 in 2022 to 5.4 in 2024. In 2024, DART was 1.29× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 324122 · Wilmington, CA ABOVE-IND · SMALL

Grade D · TCR 4.2 · 128% of ind

  • DART 5.4 DART
  • RANK #9/9
  • PHOTO Karnak Midwest LLC
  • BOOK 2y book
  • INJ 6 inj
  • SIZE ~72 FTE

Nearest TCR peer: Karnak Midwest LLC (0.0 TCR gap)

Read with this employer → · Industry book → · California employers → · Look up another →

GS II Inc - CertainTeed in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows GS II Inc - CertainTeed averages 4.2 TCR (128% of the Asphalt shingles made from purchased asphaltic materials BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

GS II Inc - CertainTeed TCR series: 2022=3 · 2024=5.4 · BLS 3.3

Where GS II Inc - CertainTeed falls in its industry

148 Asphalt shingles made from pur establishments

Safer than 19% of graded establishments in this industry, whose median TCR is 2.2.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #9 safest of 9 Asphalt shingles made from pur employers in California.

GS II Inc - CertainTeed (72 employees, TCR 4.2) among 29 same-industry peers, split at the industry median of 90 employees and a TCR of 2.2 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 0100200300 0246810 Average employees Total Case Rate GS II Inc - CertainTeed
GS II Inc - CertainTeed (72 employees, TCR 4.2) among 29 same-industry peers, split at the industry median of 90 employees and a TCR of 2.2

GS II Inc - CertainTeed has fewer employees than the Asphalt shingles made from purchased asp median and a higher injury rate than the industry's median TCR of 2.2. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2024 5.4 5.4 5 0 0
2022 3.0 1.5 1 1 0

OSHA ITA peer cross-reference

Establishment peer ledger

324122 · CA · Wilmington

148 Asphalt shingles made from purchased asphaltic materials employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 58 employers in Wilmington, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Karnak Midwest LLC 4.2 TCR
NAICS-TCR Bird Incorporated dba CertainTeed Corporation 4.2 TCR
NAICS-TCR Herbert Malarkey Roofing Company 4.3 TCR
NAICS-TCR Tremco East 80th 4.3 TCR
STATE-SIZE Monterey Pacific, LLC 72 FTE
STATE-SIZE Arts Ranch 72 FTE
STATE-SIZE Mellano & Company - Los Angeles Wholesale House 72 FTE
STATE-SIZE Greg Hooker dba Diamond H Dairy 72 FTE
CITY-NEAR TraPac, LLC 644 FTE
CITY-NEAR Phillips 66 Los Angeles 600 FTE
CITY-NEAR Los Angeles Refinery Wilmington 420 FTE
CITY-NEAR Valero Wilmington Refinery 389 FTE
NAT-TCR Jasco Products Company LLC 4.2 TCR
NAT-TCR Cal Feed 4.2 TCR
NAT-TCR Synergy LLC 4.2 TCR
NAT-TCR The Little Nell Hotel 4.2 TCR
NAT-SIZE OG&E-River Valley PP 72 FTE
NAT-SIZE Capital City Fire/Rescue 72 FTE
NAT-SIZE Smith Elementary School 72 FTE
NAT-SIZE Chamberlain Elementary School 72 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2022. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.