Commercial roofing projects rarely go exactly as planned. Even with a detailed scope of work, unforeseen conditions, material changes, code requirements, or owner requests can require adjustments during the project. These modifications are known as change orders, and handling them properly is essential for controlling costs, avoiding disputes, and keeping the project on schedule.
Whether you’re replacing a warehouse roof, installing a new membrane system, or restoring a large commercial facility, understanding how change orders work helps protect your investment and ensures everyone remains aligned throughout the project.
What Is a Commercial Roofing Change Order?
A change order is a written document that officially modifies the original roofing contract. It records any agreed-upon changes to the project’s scope, pricing, materials, timeline, or installation methods.
Common reasons for roofing change orders include:
- Hidden water damage discovered after tear-off
- Deteriorated roof decking requiring replacement
- Structural repairs not visible during inspection
- Changes requested by the building owner
- Updated local building code requirements
- Material substitutions due to supply shortages
- Additional insulation needed to meet energy codes
- Weather-related delays affecting project sequencing
A documented change order ensures every modification is approved before additional work begins.
Never Approve Verbal Changes
One of the biggest mistakes property owners make is authorizing extra work verbally. Even if you trust your roofing contractor, every change should be documented in writing.
A professional change order should clearly state:
- The reason for the change
- Description of additional or modified work
- Materials being added or removed
- Additional labor requirements
- Cost increase or credit
- Schedule impact
- Required approvals and signatures
Written documentation prevents misunderstandings and creates a clear record for accounting, warranties, insurance, and future facility management.
Review Why the Change Is Necessary
Not every change order represents an unexpected cost. Some protect the long-term performance of the roof.
For example, once the existing roof is removed, contractors may discover:
- Rotten wood decking
- Rusted steel deck sections
- Wet insulation
- Damaged flashing hidden beneath previous roofing layers
- Unsafe structural conditions
Addressing these issues during construction is usually far less expensive than covering them up and repairing failures later.
Ask your roofing contractor to provide photographs, inspection reports, or field documentation explaining why the additional work is necessary.
Understand the Cost Breakdown
Every change order should include transparent pricing.
Review the document carefully to understand:
- Material costs
- Labor charges
- Equipment expenses
- Disposal fees
- Overhead or project management costs
- Any tax implications
Professional commercial roofing contractors should be able to explain exactly how the revised pricing was calculated rather than providing a single lump-sum figure.
Evaluate Schedule Impacts
Some roofing changes require additional time.
Examples include:
- Ordering specialty roofing materials
- Waiting for structural engineers
- Deck replacement
- Additional inspections
- Permit revisions
A quality change order should explain how the modification affects the construction schedule and whether the project completion date changes.
Knowing these impacts helps facility managers coordinate tenants, operations, deliveries, and business continuity.
Keep Communication Centralized
Successful commercial roofing projects rely on clear communication between:
- Building owners
- Facility managers
- Roofing contractors
- Architects
- Consultants
- General contractors
- Insurance representatives (when applicable)
Designate a single decision-maker whenever possible. This reduces conflicting instructions and prevents unauthorized changes that can increase costs or delay completion.
Protect Warranties and Code Compliance
Some owner-requested changes may unintentionally affect manufacturer warranties or building code compliance.
Before approving any modification, confirm that the revised roofing assembly still meets:
- Manufacturer installation requirements
- Wind uplift ratings
- Fire classifications
- Local building codes
- Energy code requirements
- Warranty eligibility
Experienced commercial roofing contractors coordinate with manufacturers and inspectors to ensure approved changes do not compromise long-term roof performance.
Best Practices for Managing Roofing Change Orders
To keep your project organized and financially predictable:
- Review the original contract before approving changes.
- Request written documentation with every modification.
- Verify the reason for additional work.
- Ask for photos or inspection evidence when hidden damage is discovered.
- Review cost breakdowns carefully.
- Understand any schedule extensions.
- Obtain signed approval before work begins.
- Keep copies of all change orders with your project records.
These simple practices reduce disputes and improve project transparency.
Shieldline Roofing’s Expert Opinion
At Shieldline Roofing, we recommend treating every commercial roofing change order as a documented contract change—not a verbal agreement in the field. The change should identify the reason, added or reduced cost, materials, schedule impact, and any warranty implications, with the owner’s approval recorded before the additional work proceeds whenever practical.
Our Key Insights
The American Institute of Architects recommends documenting construction changes through a formal change order that identifies the change in scope, contract price, and contract time. Following that approach gives both the property owner and contractor a clear record of what was authorized and helps prevent disputes over unexpected roofing costs.
Choose a Contractor with Strong Project Management
The easiest way to manage change orders is to work with an experienced commercial roofing contractor that emphasizes planning, documentation, and communication from the beginning.
At ShieldLine Roofing, every change order is handled through a structured process that clearly explains why modifications are needed, how they affect cost and schedule, and what approvals are required before additional work proceeds. This transparent approach helps property owners, facility managers, and commercial building operators make informed decisions while protecting budgets, warranties, and long-term roof performance.
Properly managed change orders aren’t signs of a poorly planned project—they’re part of responsible commercial roofing project management. When handled with accurate documentation, open communication, and clear approvals, they help ensure your roofing investment delivers lasting value with fewer surprises. Learn More
