Roofing contractors · Ohio

Diamond Roofing Systems, LLP

Warren, OH · ~39 workers · 4 years of OSHA Injury Tracking Application data.

C
Average Safety Record
2.4
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Diamond Roofing Systems, LLP runs at 85% of its industry's injury rate - about level with the typical Roofing contractors workplace, earning a grade C.

Diamond Roofing Systems, LLP: 2.4 TCR = 85% of Roofing contractors BLS 2.8 · 4y Form 300A (see methodology below)

Diamond Roofing Systems, LLP safety composite

Diamond Roofing Systems, LLP scores strongest on total case rate (tcr) (safer than 69% of same-industry peers) and weakest on dart rate (safer than 23%), 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).

D

48/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 2.37 per 100 workers

Safer than 69% of industry peers

DART rate
F 4.98 per 100 workers

Safer than 23% of industry peers

Fatalities
D 0

Safer than 51% 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

Diamond Roofing Systems, LLP: 2.5 → 5.0 TCR

Peak year 2024 @ 5.0 TCR · DART/TCR 2.1× in 2024

Diamond Roofing Systems, LLP's TCR rose 2.5 from 2.5 in 2021 to 5.0 in 2024. In 2024, DART was 2.1× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238160 · Warren, OH AT/BELOW-IND · SMALL

Grade C · TCR 2.4 · 85% of ind

  • DART 5.0 DART
  • RANK #41/86
  • PHOTO Heritage One Roofing…
  • BOOK 4y book
  • INJ 4 inj
  • SIZE ~39 FTE

Nearest TCR peer: Heritage One Roofing, Inc. (0.0 TCR gap)

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

Diamond Roofing Systems, LLP in the TCR neighbourhood

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

TCR

What this shows Diamond Roofing Systems, LLP averages 2.4 TCR (85% of the Roofing contractors BLS benchmark).

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

Diamond Roofing Systems, LLP TCR series: 2021=2.5 · 2022=2 · 2023=0 · 2024=5 · BLS 2.8

Where Diamond Roofing Systems, LLP falls in its industry

1,723 Roofing contractors establishments

Safer than 69% of graded establishments in this industry, whose median TCR is 3.7.

More dangerous than peersSafer than peers

Narrower to Ohio alone (the establishments it most directly competes with for workers and contracts): ranked #41 safest of 86 Roofing contractors employers in Ohio.

Diamond Roofing Systems, LLP (39 employees, TCR 2.4) among 29 same-industry peers, split at the industry median of 44 employees and a TCR of 3.7 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 050100150 0102030 Average employees Total Case Rate Diamond Roofing Systems, LLP
Diamond Roofing Systems, LLP (39 employees, TCR 2.4) among 29 same-industry peers, split at the industry median of 44 employees and a TCR of 3.7

Diamond Roofing Systems, LLP has fewer employees than the Roofing contractors median and a lower injury rate than the industry's median TCR of 3.7. 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 5.0 5.0 2 0 0
2023 0.0 0.0 0 0 0
2022 2.0 2.0 1 0 0
2021 2.5 2.5 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238160 · OH · Warren

1,723 Roofing contractors employers nationwide with a credible TCR · 22,650 rated employers in Ohio with headcount on file · 142 employers in Warren, OH · 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 Heritage One Roofing, Inc. 2.4 TCR
NAICS-TCR Thoroughbred Contractors LLC 2.4 TCR
NAICS-TCR WS Aiken 2.4 TCR
NAICS-TCR Coffey Contracting Company, Inc. 2.4 TCR
STATE-SIZE DRW PACKING INC 39 FTE
STATE-SIZE OHI Greenhouse LLC 39 FTE
STATE-SIZE Bridgewater Dairy LLC 39 FTE
STATE-SIZE Rossburg Facility 39 FTE
CITY-NEAR Lordstown Complex 2,768 FTE
CITY-NEAR Ultium Cells, Lordstown 2,000 FTE
CITY-NEAR Homegoods Ohio Merchants LLC 1,282 FTE
CITY-NEAR Warren Hospital 953 FTE
NAT-TCR Aerostar Airport Holdings, LLC 2.4 TCR
NAT-TCR Pratt (Target Container) Inc. 2.4 TCR
NAT-TCR KARL STORZ - Franklin 2.4 TCR
NAT-TCR Equal Exchange, Inc. 2.4 TCR
NAT-SIZE Bay 7, LP DBA The Rambler Motel 39 FTE
NAT-SIZE Coca Cola Portland Syrup Plant 39 FTE
NAT-SIZE California Bioenergy OpCo LLC 39 FTE
NAT-SIZE Seah Steel USA LLC, P1 Thread 39 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, 2023, 2022, 2021. 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.