Low slope roofing installation · Kansas

Diamond Roofing Manhattan

Manhattan, KS · ~26 workers · 5 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
5.6
Avg TCR
2.8
Industry avg
0
Fatalities
Subscribe to safety-record updates (RSS)

The verdict

Diamond Roofing Manhattan runs at 201% of its industry's injury rate - far more dangerous than the typical Low slope roofing installation workplace, earning a grade F.

Diamond Roofing Manhattan: 5.6 TCR = 201% of Low slope roofing installation BLS 2.8 · 5y Form 300A (see methodology below)

Diamond Roofing Manhattan safety composite

Diamond Roofing Manhattan scores strongest on dart rate (safer than 79% of same-industry peers) and weakest on total case rate (tcr) (safer than 32%), 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

53/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.64 per 100 workers

Safer than 32% of industry peers

DART rate
B 0 per 100 workers

Safer than 79% 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

−3.0

2016→2021

Diamond Roofing Manhattan injury rate improved

Diamond Roofing Manhattan's TCR fell 3.0 from 8.9 in 2016 to 5.9 in 2021. Peak filing year was 2016 at 8.9 TCR. In 2021, DART was 0× this establishment's average TCR (severity share of cases).

2016=8.9 · 2017=4.8 · 2019=3.6 · 2020=5.0 · 2021=5.9

OSHA ITA Form 300A scorecard

Establishment book 238160 · Manhattan, KS ABOVE-IND · SMALL

Grade F · TCR 5.6 · 201% of ind

  • DART 0.0 DART
  • RANK #20/27
  • PHOTO Vermont Roofing Comp…
  • BOOK 5y book
  • INJ 8 inj
  • SIZE ~26 FTE

Nearest TCR peer: Vermont Roofing Company, Inc (0.0 TCR gap)

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

Diamond Roofing Manhattan in the TCR neighbourhood

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

TCR

What this shows Diamond Roofing Manhattan averages 5.6 TCR (201% of the Low slope roofing installation BLS benchmark).

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

Diamond Roofing Manhattan TCR series: 2016=8.9 · 2017=4.8 · 2019=3.6 · 2020=5 · 2021=5.9 · BLS 2.8

Where Diamond Roofing Manhattan falls in its industry

1,723 Low slope roofing installation establishments

Safer than 32% of graded establishments in this industry, whose median TCR is 3.7.

More dangerous than peersSafer than peers

Narrower to Kansas alone (the establishments it most directly competes with for workers and contracts): ranked #20 safest of 27 Low slope roofing installation employers in Kansas.

Diamond Roofing Manhattan (26 employees, TCR 5.6) 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 Manhattan
Diamond Roofing Manhattan (26 employees, TCR 5.6) among 29 same-industry peers, split at the industry median of 44 employees and a TCR of 3.7

Diamond Roofing Manhattan has fewer employees than the Low slope roofing installation median and a higher 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
2021 5.9 0.0 1 0 0
2020 5.0 5.0 1 0 0
2019 3.6 3.6 1 0 0
2017 4.8 2.4 2 0 0
2016 8.9 5.9 3 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238160 · KS · Manhattan

1,723 Low slope roofing installation employers nationwide with a credible TCR · 5,228 rated employers in Kansas with headcount on file · 83 employers in Manhattan, KS · 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 Vermont Roofing Company, Inc 5.6 TCR
NAICS-TCR A.W. Farrell & Son, Inc. - Erie Office 5.6 TCR
NAICS-TCR Hytech Roofing, INC 5.7 TCR
NAICS-TCR Veterans National Property Services 5.7 TCR
STATE-SIZE Neosho Valley Feeders 26 FTE
STATE-SIZE Heifer Source, LLC 26 FTE
STATE-SIZE Pittsburg Service Center 26 FTE
STATE-SIZE Beloit District 2 26 FTE
CITY-NEAR City of Manhattan 640 FTE
CITY-NEAR GTM Sportswear 553 FTE
CITY-NEAR WM 35 465 FTE
CITY-NEAR KSWIC017 ASCENSION VIA CHRISTI MANHATTAN 461 FTE
NAT-TCR Upi Manufacturing 5.6 TCR
NAT-TCR MKB Construction Inc. 5.6 TCR
NAT-TCR Laminated Products Plant 5.6 TCR
NAT-TCR Country Mart #2479 5.6 TCR
NAT-SIZE GNS 26 FTE
NAT-SIZE Subcon, LLC 26 FTE
NAT-SIZE South Michigan Food Bank 26 FTE
NAT-SIZE Brush Prairie Concrete, Inc. 26 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, 2019, 2017, 2016. 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.