What ABA Contracting Means for Roofing Work in South Carolina

ABA contracting is a federal requirement that affects how roofing and other construction work gets paid on public projects in South Carolina

ABA stands for the American Builders and Artisans Act, a federal law that sets wage and benefit standards for workers on public construction projects. When a roofing job is funded by federal money—through grants, loans, or direct government contracts—the contractor must pay workers prevailing wages, which are typically higher than market rates in your area. South Carolina's Department of Labor, Licensing and Regulation oversees ABA compliance for state and federal projects.

The law applies to most roofing work on public buildings, roads, bridges, and other government-funded infrastructure. It does not apply to private residential or commercial roofing jobs paid entirely with private funds. Understanding whether a project falls under ABA rules matters because it changes what contractors can charge, what workers earn, and what paperwork the job requires.

Key Takeaways

• ABA contracting applies to roofing work on public projects funded with federal money, not to private residential or commercial jobs.
• Contractors on ABA projects must pay workers prevailing wages set by the U.S. Department of Labor, which are usually higher than standard market rates.
• South Carolina's Department of Labor, Licensing and Regulation enforces ABA compliance and can investigate wage violations.
• Project owners and contractors must post wage notices and keep detailed payroll records showing hours, rates, and deductions for every worker.
• Roofing workers on ABA projects may earn significantly more than those on private jobs, but contractors face penalties for non-compliance.

How prevailing wage rates work on public roofing projects

The U.S. Department of Labor publishes prevailing wage rates for each county in South Carolina. These rates vary by job classification—roofer, roofer's helper, laborer, equipment operator—and change periodically. A roofer in Richland County might earn a different prevailing wage than a roofer in Charleston County, and rates include both base pay and fringe benefits like health insurance or pension contributions.

Contractors bidding on ABA roofing projects must use the current prevailing wage rates to calculate labor costs. This means the bid will be higher than it would be for a private job, and the project owner knows this going in. Once a contractor wins the bid, they are legally required to pay every worker at least the prevailing wage rate for that classification, regardless of experience or skill level.

Workers do not have to join a union to earn prevailing wages on ABA projects, though union contractors often perform this work. Non-union contractors can also bid and perform ABA work as long as they pay the required rates and follow all compliance rules.

Who enforces ABA rules and what violations look like

South Carolina's Department of Labor, Licensing and Regulation investigates complaints about wage violations on public projects. Workers, unions, or project owners can report a contractor who is not paying prevailing wages. Investigations typically examine payroll records, timesheets, and payment documentation to verify that workers received the correct rates.

Common violations include paying workers less than the prevailing wage, misclassifying workers to a lower-wage job category, failing to pay fringe benefits, or not keeping accurate payroll records. Penalties can include back pay owed to workers, fines against the contractor, and disqualification from future public projects. In serious cases, the contractor's license can be suspended or revoked.

Project owners and general contractors also have responsibility to monitor subcontractors. If a roofing subcontractor violates ABA rules, the general contractor and project owner may face liability as well, which is why larger projects often require regular payroll audits and compliance certifications.

Documentation and record-keeping requirements

Contractors on ABA roofing projects must maintain detailed payroll records for every worker. These records must show the worker's name, job classification, hours worked each day, hourly rate paid, gross pay, deductions, and net pay. Records must be kept for at least three years and made available for inspection by the Department of Labor or federal auditors.

Before work begins, the contractor must post a notice in a visible location listing the prevailing wage rates for each job classification. Workers have the right to see this notice and to know what wage they should be earning. Some projects also require the contractor to submit certified payroll reports to the project owner or a third-party monitor on a weekly or bi-weekly basis.

Fringe benefits can be paid as cash or contributed to a benefit plan—health insurance, pension, training fund—depending on what the prevailing wage rate specifies for that county and classification. The contractor must document how fringe benefits are being paid and provide proof to workers upon request.

When ABA rules apply and when they do not

ABA contracting rules apply to roofing work on public buildings, schools, libraries, government offices, and publicly funded infrastructure projects. They also apply to projects funded by federal grants or loans, even if the project owner is a non-profit or private entity. A roofing job on a new county courthouse, a state university building, or a bridge repaired with federal highway funds all fall under ABA rules.

Private residential roofing, commercial roofing on privately owned buildings, and roofing work paid entirely with private funds do not trigger ABA requirements. A homeowner hiring a roofer to replace a roof, or a business owner paying for a commercial roof repair from company funds, will not be subject to prevailing wage rules. The distinction turns on the source of funding, not the size or type of building.

Some projects are partially funded with public money and partially with private funds. In those cases, ABA rules typically apply to the entire project, not just the publicly funded portion. Contractors should verify the funding source with the project owner before bidding.

How ABA affects roofing bids and project timelines

Because prevailing wages are higher than market rates, roofing bids on ABA projects cost more than bids for equivalent private work. A contractor cannot reduce costs by paying workers less or by cutting corners on benefits. This means project owners budgeting for public roofing work need to account for higher labor costs from the start.

ABA compliance also adds administrative time. Contractors must track payroll carefully, submit certified reports, and respond to audits. Some projects require a compliance officer or third-party monitor to oversee wage payments. These administrative costs are typically built into the bid as well.

Timelines for ABA projects are not inherently longer, but the compliance requirements mean contractors cannot rush through paperwork or skip documentation steps. A well-organized contractor can complete an ABA roofing project on schedule while maintaining full compliance.

Resources for contractors and workers in South Carolina

The U.S. Department of Labor's Wage and Hour Division maintains prevailing wage rates for South Carolina counties and publishes guidance on ABA compliance. South Carolina's Department of Labor, Licensing and Regulation provides information on state-level enforcement and can answer questions about specific projects.

Roofing contractors new to ABA work should review the prevailing wage rates for their county before bidding and consult with an accountant or payroll service familiar with public project compliance. Workers who believe they have not been paid prevailing wages can contact the Department of Labor or the federal Wage and Hour Division to report a violation.

Frequently Asked Questions

Do all roofing jobs in South Carolina follow ABA rules?

No. ABA rules apply only to roofing work on public projects funded with federal or state money. Private residential and commercial roofing jobs paid entirely with private funds are not subject to prevailing wage requirements. Check the funding source with the project owner to determine whether ABA applies.

Can a contractor pay workers less if they agree to it?

No. On ABA projects, the prevailing wage is a legal minimum that cannot be waived or negotiated downward, even if a worker agrees. Contractors who pay less face penalties and back-pay liability, and workers can report violations to the Department of Labor.

What happens if a contractor does not keep payroll records?

Missing or incomplete payroll records are a serious violation. Investigators may assume the contractor did not pay prevailing wages and assess penalties based on hours worked. Contractors can lose their license and be barred from future public projects. Keeping detailed records is essential to proving compliance.

Are union roofers required on ABA projects?

No. ABA rules require prevailing wages but do not mandate union membership or union contractors. Non-union contractors can perform ABA roofing work as long as they pay the prevailing wage rates and follow all compliance requirements.

How often do prevailing wage rates change?

Prevailing wage rates are updated periodically by the U.S. Department of Labor, typically annually or when significant changes occur in the local construction market. Contractors should check the current rates for their county before bidding on any public project.