Sunroofs and parts, automotive, truck, and bus, manufacturing · Michigan

Inalfa Roof Systems - AHA

Auburn Hills, MI · ~491 workers · 3 years of OSHA Injury Tracking Application data.

B
Good Safety Record
4.2
Avg TCR
5.4
Industry avg
0
Fatalities
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The verdict

Inalfa Roof Systems - AHA runs at 79% of its industry's injury rate - safer than the typical Sunroofs and parts, automotive, truck, and bus, manufacturing workplace, earning a grade B.

Inalfa Roof Systems - AHA: 4.2 TCR = 79% of Sunroofs and parts, automotive, truck, and bus, manufacturing BLS 5.4 · 3y Form 300A (see methodology below)

Inalfa Roof Systems - AHA safety composite

Inalfa Roof Systems - AHA scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 26%), 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

35/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 4.24 per 100 workers

Safer than 34% of industry peers

DART rate
F 3.13 per 100 workers

Safer than 26% 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%).

TCR Δ

−1.5

2016→2021

Inalfa Roof Systems - AHA injury rate improved

Inalfa Roof Systems - AHA's TCR fell 1.5 from 5.7 in 2016 to 4.2 in 2021. Peak filing year was 2016 at 5.7 TCR. In 2021, DART was 0.74× this establishment's average TCR (severity share of cases).

2016=5.7 · 2020=2.8 · 2021=4.2

OSHA ITA Form 300A scorecard

Establishment book 336390 · Auburn Hills, MI AT/BELOW-IND · MID

Grade B · TCR 4.2 · 79% of ind

  • DART 3.1 DART
  • RANK #105/146
  • PHOTO 3219 TX Wheel Plant
  • BOOK 3y book
  • INJ 61 inj
  • SIZE ~491 FTE

Nearest TCR peer: 3219 TX Wheel Plant (0.0 TCR gap)

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Inalfa Roof Systems - AHA in the TCR neighbourhood

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

TCR

What this shows Inalfa Roof Systems - AHA averages 4.2 TCR (79% of the Sunroofs and parts, automotive, truck, and bus, manufacturing BLS benchmark).

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

Inalfa Roof Systems - AHA TCR series: 2016=5.7 · 2020=2.8 · 2021=4.2 · BLS 5.4

Where Inalfa Roof Systems - AHA falls in its industry

772 Sunroofs and parts, automotive establishments

Safer than 34% of graded establishments in this industry, whose median TCR is 3.2.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #105 safest of 146 Sunroofs and parts, automotive employers in Michigan.

Inalfa Roof Systems - AHA (491 employees, TCR 4.2) among 29 same-industry peers, split at the industry median of 154 employees and a TCR of 3.2 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 02004006008001,000 051015 Average employees Total Case Rate Inalfa Roof Systems - AHA
Inalfa Roof Systems - AHA (491 employees, TCR 4.2) among 29 same-industry peers, split at the industry median of 154 employees and a TCR of 3.2

Inalfa Roof Systems - AHA has more employees than the Sunroofs and parts, automotive, truck, a median and a higher injury rate than the industry's median TCR of 3.2. 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
2021 4.2 3.1 16 0 0
2020 2.8 1.9 9 0 0
2016 5.7 5.7 36 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

336390 · MI · Auburn Hills

772 Sunroofs and parts, automotive, truck, and bus, manufacturing employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 215 employers in Auburn Hills, MI · 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 3219 TX Wheel Plant 4.2 TCR
NAICS-TCR Innotive Tech Inc. 4.2 TCR
NAICS-TCR Shape Corp - Stampings 4.3 TCR
NAICS-TCR Mitsubishi Heavy Industries Climate Control, Inc. 4.2 TCR
STATE-SIZE LSG Sky Chefs DTW 491 FTE
STATE-SIZE Dakkota Integrated systems LLC 492 FTE
STATE-SIZE Herman Miller, Inc. - Design Yard 490 FTE
STATE-SIZE Perrigo : Ranir 490 FTE
CITY-NEAR FCA US Headquarters and Technology Center 14,088 FTE
CITY-NEAR FCA US Headquarters and Technology 12,609 FTE
CITY-NEAR Continental - Auburn Hills North 1,318 FTE
CITY-NEAR CTC Pilot Plant 1,094 FTE
NAT-TCR Acme Smoked Fish Brooklyn 4.2 TCR
NAT-TCR Klein-Dickert Co., Inc. 4.2 TCR
NAT-TCR LCI-517110 4.2 TCR
NAT-TCR 2253-H4637 4.2 TCR
NAT-SIZE The Potomac Edison Company 491 FTE
NAT-SIZE Fort Bliss Facility Maintenance 491 FTE
NAT-SIZE 6458-ZSTL 491 FTE
NAT-SIZE FM 1 and FM 2 491 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: 2021, 2020, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.