Asphalt roof shingle installation · Washington

Cornerstone Roofing, Inc.

Snohomish, WA · ~35 workers · 2 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.6
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Cornerstone Roofing, Inc. runs at 165% of its industry's injury rate - more dangerous than the typical Asphalt roof shingle installation workplace, earning a grade D.

Cornerstone Roofing, Inc.: 4.6 TCR = 165% of Asphalt roof shingle installation BLS 2.8 · 2y Form 300A (see methodology below)

Cornerstone Roofing, Inc. safety composite

Cornerstone Roofing, Inc. scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 17%), 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)
D 4.63 per 100 workers

Safer than 41% of industry peers

DART rate
F 6.05 per 100 workers

Safer than 17% 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

Cornerstone Roofing, Inc.: 3.2 → 6.0 TCR

Peak year 2024 @ 6.0 TCR · DART/TCR 1.31× in 2024

Cornerstone Roofing, Inc.'s TCR rose 2.8 from 3.2 in 2023 to 6.0 in 2024. In 2024, DART was 1.31× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238160 · Snohomish, WA ABOVE-IND · SMALL

Grade D · TCR 4.6 · 165% of ind

  • DART 6.0 DART
  • RANK #9/34
  • PHOTO Independent Roofing …
  • BOOK 2y book
  • INJ 3 inj
  • SIZE ~35 FTE

Nearest TCR peer: Independent Roofing Systems (0.0 TCR gap)

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

Cornerstone Roofing, Inc. in the TCR neighbourhood

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

TCR

What this shows Cornerstone Roofing, Inc. averages 4.6 TCR (165% of the Asphalt roof shingle installation BLS benchmark).

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

Cornerstone Roofing, Inc. TCR series: 2023=3.2 · 2024=6 · BLS 2.8

Where Cornerstone Roofing, Inc. falls in its industry

1,723 Asphalt roof shingle installat establishments

Safer than 41% of graded establishments in this industry, whose median TCR is 3.7.

More dangerous than peersSafer than peers

Narrower to Washington alone (the establishments it most directly competes with for workers and contracts): ranked #9 safest of 34 Asphalt roof shingle installat employers in Washington.

Cornerstone Roofing, Inc. (35 employees, TCR 4.6) 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 Cornerstone Roofing, Inc.
Cornerstone Roofing, Inc. (35 employees, TCR 4.6) among 29 same-industry peers, split at the industry median of 44 employees and a TCR of 3.7

Cornerstone Roofing, Inc. has fewer employees than the Asphalt roof shingle 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
2024 6.0 6.0 2 0 0
2023 3.2 3.2 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238160 · WA · Snohomish

1,723 Asphalt roof shingle installation employers nationwide with a credible TCR · 10,147 rated employers in Washington with headcount on file · 57 employers in Snohomish, WA · 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 Independent Roofing Systems 4.6 TCR
NAICS-TCR Veterans Painting Contractor, Inc. 4.6 TCR
NAICS-TCR Northwestern Roofing - Erie Office 4.6 TCR
NAICS-TCR Martin Roofing Co., Inc 4.6 TCR
STATE-SIZE Farm Shop 35 FTE
STATE-SIZE BNW Quincy 35 FTE
STATE-SIZE Pacific Aquaculture Inc. 35 FTE
STATE-SIZE F/V Arica 35 FTE
CITY-NEAR 701-00681 294 FTE
CITY-NEAR Haggard Electrical Contractors 187 FTE
CITY-NEAR Snyder Roofing of Washington, LLC 163 FTE
CITY-NEAR Expert Drywall, Inc. 144 FTE
NAT-TCR New Perspective Carlson Parkway 4.6 TCR
NAT-TCR BAE Stamping 4.6 TCR
NAT-TCR Belmont Village Glenview 4.6 TCR
NAT-TCR Lockheed Aero Cafe 4.6 TCR
NAT-SIZE Greystone Concrete Products Inc 35 FTE
NAT-SIZE 910 South Oyster Bay Rd. 35 FTE
NAT-SIZE Infinity Product Group 35 FTE
NAT-SIZE Webb Boring LLC 35 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. 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.