Roofing Workers' Comp Rates: How Class Codes Affect Your Premium

Jun 29
6 min read

If you’re a roofing contractor, you’ve probably looked at your workers’ comp quote and thought, “Why is this so expensive?” Maybe a general contractor is asking for proof of coverage, or you’re trying to lower costs before renewal. Either way, understanding roofing workers' comp rates is one of the best steps you can take to protect your business and your bottom line.

Roofing Workers' Comp Rates: How Class Codes Affect Your Premium

The truth is, your premium isn’t random. It’s driven largely by how your work is classified and how risk is measured. One of the biggest factors is something many contractors overlook: class codes.

Let’s break it down in simple, practical terms so you can make smarter decisions.

What Are Roofing Workers’ Comp Rates?

Workers’ compensation insurance rates are the cost you pay to cover your employees if they get hurt on the job. For roofing contractors, these rates tend to be higher because the work involves greater physical risk.

In most cases, workers’ comp is priced per $100 of payroll. That means your total premium depends on how much you pay your workers and the type of work they perform.

Your rate is typically influenced by:

The type of work your employees do (class codes)
Your total payroll
Your claims history (your experience mod or EMR)
The state where you operate

Because rates vary widely by state and business type, two roofing companies can have very different premiums even if they seem similar on the surface.

The Short Answer: How Class Codes Affect Roofing Workers’ Comp Rates

Class codes directly impact your premium by assigning a risk level to your work.

Here’s the simple breakdown:

Every type of job has a class code
Each class code has a different cost per $100 of payroll
Roofing codes are higher because the work is riskier
Your premium is calculated by multiplying payroll by those rates

In short, the more payroll you have under high-risk roofing codes, the higher your overall premium will be.

Understanding Class Codes in Roofing

A class code is a number used by insurance companies to categorize your business based on risk. It’s how insurers decide how dangerous your work is compared to other industries.

In roofing, class codes take into account:

Type of roofing work (flat vs. steep)
Repair vs. new installation
Residential vs. commercial jobs
Exposure to heights and hazards

Because roofing involves working at heights and handling materials in tough conditions, it’s considered one of the highest-risk categories in workers’ comp.

Why does this matter so much?

Because class codes are one of the biggest drivers of your cost.

For example:

Field workers installing roofs fall under high-risk codes
Office staff handling scheduling and billing fall under low-risk codes

If everything is lumped into one high-risk category, you may be paying more than necessary.

How Payroll Drives Your Premium

Workers’ comp uses payroll as a way to estimate how much exposure your business has to risk.

Here’s how it works:

At the start of your policy, you estimate your payroll
The insurance company applies rates based on your class codes
At the end of the policy, an audit checks your actual payroll

If your actual payroll is higher than what you estimated, you may owe more.

This is why accuracy matters. Overestimating can hurt cash flow. Underestimating can lead to surprise bills later.

What Is an Experience Modification Rate (EMR)?

Your experience modification rate (EMR) is a number that compares your claims history to other businesses like yours.

Think of it as a report card for safety.

1.0 means average
Below 1.0 means fewer or less severe claims
Above 1.0 means more or higher-cost claims

Your EMR can have a major effect on your premium. Even one large claim can increase it, depending on the situation.

Improving safety practices over time can help bring your EMR down.

Common Mistakes That Increase Roofing Workers’ Comp Rates

Many roofing contractors pay more than they need to because of avoidable mistakes.

One of the most common issues is misclassifying employees. For example, putting office staff under a roofing class code instead of a clerical category can increase your cost significantly.

Another major issue is confusion between 1099 contractors and employees.

A 1099 worker is typically an independent contractor, but not everyone qualifies. If a worker:

Follows your schedule
Uses your tools
Works under your direction

They may be considered an employee for workers’ comp purposes.

Misclassification can lead to:

Additional charges during audits
Penalties
Coverage issues if someone gets injured

Uninsured subcontractors are another common problem. If a subcontractor doesn’t carry their own workers’ comp policy, their payroll may be included in your audit.

Always collect certificates of insurance and make sure they are current.

Workers’ Comp Audits Explained

A workers’ comp audit happens at the end of your policy term. It’s how the insurance company verifies that your estimates match reality.

During the audit, they may review:

Payroll reports
Tax documents
Job roles and classifications
Subcontractor certificates

If things don’t match up, your premium may be adjusted.

Staying organized and keeping clear records makes audits much easier—and can prevent overcharges.

Pay-As-You-Go Workers’ Comp for Roofers

A pay-as-you-go workers’ comp policy allows you to pay your premium based on actual payroll instead of estimates.

Instead of guessing your payroll for the year, your payments adjust with each pay period.

This approach can:

Improve cash flow
Reduce large audit adjustments
Keep billing more accurate

For roofing contractors with seasonal or changing workloads, this option is often worth considering.

What Is a Ghost Policy?

A ghost policy is a workers’ comp policy with no payroll. It’s commonly used by owner-only businesses.

Roofers may need one when:

A general contractor requires proof of insurance
You want to bid jobs that require coverage
You don’t have employees but still need a certificate of insurance

It’s important to understand that ghost policies typically don’t cover injuries to the business owner. Coverage details depend on the policy and state rules.

How to Lower Roofing Workers’ Comp Rates

Even though roofing is high risk, there are ways to take control of your premium.

Start with safety. Fewer injuries mean fewer claims, which can improve your EMR over time. Focus on things like fall protection, ladder safety, and heat illness prevention. OSHA offers practical guidelines you can follow here: https://www.osha.gov/fall-protection

Next, keep detailed records. Clean payroll and job classification records make audits smoother and help avoid extra charges.

Always verify that subcontractors carry their own insurance. This step alone can prevent unexpected audit costs.

Separating job roles is another simple but effective strategy. Keeping roofing work and clerical work properly classified can help ensure you’re not overpaying.

Finally, consider working with a specialist who understands roofing risks and classifications. Workers’ comp can be complex, and small mistakes can become expensive.

You can also learn more about how classification systems work from the National Council on Compensation Insurance here: https://www.ncci.com

State Differences Can Affect Your Rates

Workers’ comp laws and rates vary by state, sometimes significantly.

For example:

Some states require coverage with just one employee
Others allow certain exemptions
Texas operates under a different system than most states

These rules can change, so it’s important to:

Confirm requirements with your state’s workers’ comp board
Review your policy yearly
Speak with a licensed agent who understands your local market

FAQ: Roofing Workers’ Comp Rates and Class Codes

How are roofing workers’ comp rates calculated?

They are based on your payroll, class codes, claims history (EMR), and state regulations. Roofing generally costs more because it involves higher risk.

Can the wrong class code increase my cost?

Yes. Misclassifying employees, especially placing low-risk roles into high-risk roofing categories, can raise your premium significantly.

What is the fastest way to lower my workers’ comp rate?

Improving jobsite safety and reducing claims is one of the most effective ways to lower your EMR and long-term costs.

Do subcontractors impact my premium?

Yes. If they don’t have their own workers’ comp coverage, their payroll may be included in your audit.

Is workers’ comp required for all roofing businesses?

In most states, it’s required if you have employees. However, rules vary, so you should confirm with your state or a licensed agent.

Get Help Understanding Your Roofing Workers’ Comp Rates

Roofing workers’ comp rates can feel complicated, especially when class codes, payroll, and audits all affect what you pay. But once you understand the basics, you can start making smarter decisions that protect your business and control your costs.