The standard NCCI workers' compensation class code for roofing contractors is 5551, which is described as "Roofing - All Kinds & Drivers." This is a governing class code, meaning it applies to all employees involved in roofing operations regardless of the specific material being installed, whether that is asphalt shingles, clay or concrete tile, standing seam metal, single-ply membrane, built-up roofing, or modified bitumen. The class code also includes drivers who transport materials and equipment to and from job sites as part of the roofing operation.
Class code 5551 carries one of the highest manual rates in the NCCI classification system. The elevated rate reflects the statistical reality that roofing work involves significant exposure to falls from height, one of the leading causes of workplace fatalities in the United States. According to OSHA, falls accounted for 36.4% of all construction fatalities in recent reporting years, and roofers experience a disproportionate share of those incidents. The high frequency and severity of claims in this class code directly drive the premium rate.
It is important to understand that NCCI is not the governing rating bureau in every state. Several states operate independent rating bureaus with their own classification systems. California uses the Workers' Compensation Insurance Rating Bureau (WCIRB), which assigns roofing contractors to a similar but state-specific class code. Other monopolistic or independent fund states, including Ohio, Washington, Wyoming, and North Dakota, have their own classification systems. If you operate in one of these states, verify the applicable class code with your state's rating bureau or your insurance broker.
Proper classification is critical because the class code determines your base premium rate. If your business performs work beyond roofing, such as general carpentry, siding installation, or gutter work, you may be eligible to split your payroll across multiple class codes, which can result in a lower blended rate. For example, gutter installation may fall under class code 5102 (Iron or Steel Erection - Door or Window Frame) or another applicable code depending on the specifics. However, the rules for payroll splitting are strict, and misclassifying payroll to obtain a lower rate is considered premium fraud, which carries severe penalties including policy cancellation, back premiums, and criminal prosecution.
Your clerical and office employees can be classified under class code 8810 (Clerical Office Employees) as long as they do not perform any field work. Salespeople who visit job sites may fall under class code 8742 (Outside Sales) depending on the nature of their duties. Separating these lower-rated classifications from your 5551 payroll reduces your overall premium, but you must maintain clear documentation that these employees do not perform any roofing or manual labor tasks.
Each year, NCCI files rate recommendations with state insurance regulators based on updated loss data for each class code. These rate changes can move your premium up or down independent of anything your company does. In recent years, many states have seen moderate decreases in workers' comp rates across the construction sector due to improvements in workplace safety and medical cost containment, but class code 5551 remains among the most expensive due to the inherent hazard profile of roofing work.
If you believe your operation has been assigned the wrong class code, you can request a classification inspection through NCCI or your state's rating bureau. An inspector will visit your workplace, review your operations, and issue a ruling on the correct classification. Getting this right can save you significant money if you are being rated under a code that does not accurately reflect your operations.