What Building Owners Need to Know About Roof Replacement Regulations

When replacing a commercial roof, you have to play by the rules. And those rules? They’re known as commercial roofing codes. From permitting to final inspection, every step has to meet local regulations. Skip one, and you could face fines, delays, or even having to redo the work.

In this blog, we’ll break down what business owners, property managers, and facility directors need to know about roofing permits, code-compliant roofs, and replacement regulations. You’ll get a clear look at what to expect, how to stay compliant, and why your roofing partner needs to understand the rules just as well as they understand the tools.

Table of Contents

• What Are Commercial Roofing Codes?
• Permits & Inspections: What You Should Expect
• Planning a Code-Compliant Roof Replacement

What Are Commercial Roofing Codes?

Commercial roofing codes are local and state rules that set the minimum standards for how a commercial roof must be built, repaired, or replaced. These codes make sure that materials, construction methods, and structural requirements meet safety, energy, and durability expectations. They’re not suggestions; they’re the law. Failure to follow them can lead to failed inspections, stop-work orders, or expensive do-overs.

These codes are created and enforced by state agencies and local building departments, often based on national models like the International Building Code (IBC). While the core standards are similar, exact requirements can vary by region, depending on things like climate, building type, and occupancy.

Common Code Requirements

While every commercial project is different, many local codes follow a similar set of guidelines, especially for flat or low-slope roofs. These standards prevent water intrusion, improve energy efficiency, and maintain structural integrity.

Below are a few key code areas you’ll commonly encounter during a commercial roof replacement.

Minimum Slope Requirements

Even flat roofs aren’t truly flat. Most building codes require a slight slope, typically a minimum of ¼ inch per foot, to create proper drainage. Without it, standing water can lead to leaks, membrane damage, or even structural strain.

Why This Matters

• Prevents Ponding Water: Reduces the risk of leaks and water damage
• Prolongs Roof Life: Keeps membranes and insulation from breaking down prematurely

Fire-Resistant Roofing Materials

Depending on your building’s occupancy and location, commercial roofing codes may require Class A or B fire-rated materials. These standards are based on how well the roof system resists flame spread and heat.

Why This Matters

• Protects Building Occupants: Slows the spread of fire in case of emergency
• Meets Insurance Standards: May be required to qualify for coverage or lower premiums

Insulation & Energy Code Compliance

Most commercial roofing codes require specific R-values (insulation ratings) to reduce heat loss and improve building efficiency. These values vary by climate zone and are typically based on standards from the International Energy Conservation Code (IECC).

Why This Matters

• Lowers Utility Costs: Reduces heating and cooling demand year-round
• Supports Green Building Goals: Helps meet LEED or local energy requirements

Who Enforces Commercial Building Codes

Building code enforcement isn’t one-size-fits-all. While most states adopt a version of the International Building Code (IBC), how those rules are enforced depends on the location of your property. Local departments may handle inspections and permits, but the state sets the framework. 

Let’s examine how code enforcement works in Indiana, Ohio, and Michigan, the three states Sherriff Goslin Roofing serves.

Indiana

In Indiana, commercial building codes are enforced by both state and local authorities. Cities or counties with certified departments handle their own permitting and inspections. If there’s no local enforcement agency, the state oversees compliance.

Indiana Department of Homeland Security

• Sets statewide commercial construction standards
• Handles plan reviews and inspections in areas without local oversight
• Regulates fire and building safety across all property types

Ohio

Ohio uses a centralized system for developing and enforcing building codes. Local jurisdictions can apply for certification to manage enforcement directly. The state monitors all certified departments to maintain consistency and code compliance statewide.

Ohio Board of Building Standards

• Develops and updates the Ohio Building Code
• Certifies local building departments to issue permits and perform inspections
• Monitors code uniformity and compliance across the state

Michigan

Michigan follows a single statewide construction code, making enforcement more uniform. Local building officials are responsible for issuing permits and conducting inspections. The state agency oversees these departments to supervise proper code application.

Michigan Bureau of Construction Codes

• Oversees the enforcement of the Michigan Building Code
• Approves and monitors local enforcing agencies
• Provides consistency in code interpretation and application statewide

Why Building Codes Matter in Commercial Roof Replacement

Building codes are like knights protecting your property from the dangers that come with time, weather, and neglect. They're in place to help your structure hold up under fire, storms, and everyday use. And just like leaving a fortress unguarded invites trouble, skipping compliance puts people and your investment at risk.

Looking the other way on code requirements also narrows your options later. Insurers may walk away, resale value could dip, and you might face legal headaches you weren’t expecting. Bottom line: a roof that meets code is a critical layer of long-term protection.

Examples of Dangers in Ignoring Building Codes

The next examples show what can happen when roofs or structures are built without proper oversight, permitting, or code compliance. These real incidents highlight the risks, ranging from structural failure to serious injury or even loss of life. They serve as a reminder that skipping regulations is a gamble with real consequences.

Champlain Towers South in Surfside, Florida

In June 2021, the Champlain Towers South condominium collapsed, tragically killing 98 people. Investigators later reported the building did not meet critical structural standards required by building codes in place at the time. The disaster sparked nationwide reviews of code enforcement and inspection procedures in aging buildings.

Family Dollar Store in Kansas City, Missouri

In July 2025, a portion of a Family Dollar store’s roof and front façade collapsed, killing one person and seriously injuring another. Prior inspection records revealed the building was structurally unsound and visibly tilting before the incident. Code violations and lack of corrective action were at the center of the post-collapse investigation.

Kew Recreation Centre in Melbourne, Australia

In October 2022, the steel roof structure of the Kew Recreation Centre gave way during a redevelopment project. No injuries occurred, but the collapse led to criminal charges against two builder firms for failing to follow approved engineering plans and safety regulations. Authorities determined that proper code compliance could have prevented the incident altogether.

Permits & Inspections: What You Should Expect

Commercial roof replacements have to meet local permitting and inspection requirements. Depending on your location, permits need to be obtained before work begins, and inspections may be required at multiple stages. These steps protect both the building owner and occupants by confirming that the project meets local construction and safety codes.

If your contractor is experienced, they’ll handle most of the paperwork, scheduling, and coordination with local authorities. But as the property owner, you’re ultimately responsible for making sure the project is permitted and code-compliant. Skipping these steps can halt your project or result in steep penalties.

Further Understanding the Commercial Roofing Permit & Inspection Process

A permit signals to local authorities that the work meets required standards, while inspections confirm the work is done right. For commercial roofing, this often includes an initial review of the project plan, on-site checks during installation, and a final inspection once the roof is complete.

Working with a contractor who knows the local permitting process can save time and prevent setbacks. Some jurisdictions require several inspections depending on the size and complexity of the roof, especially for flat or low-slope systems. Knowing what’s involved upfront helps you stay on schedule and compliant.

Do I Need a Permit to Replace a Commercial Roof?

Yes, in nearly every jurisdiction, you’ll need a permit before replacing a commercial roof. Permits confirm that your materials, design, and methods meet current code standards. Failing to secure one can result in stop-work orders, fines, or even forced removal of non-compliant work.

What are the Potential Fines for Building a Roof Without a Permit?

• Financial Penalties: Fines can range from $500 to $5,000+, depending on the municipality
• Reinspection Fees: You may be charged for multiple inspections or plan reviews
• Project Delays: Unpermitted work often requires removal and reinstallation
• Legal Consequences: Building owners can be held liable for non-compliance
• Insurance Issues: Insurers may refuse coverage for damage to unpermitted structures

What Happens During a Roof Inspection?

A commercial roof inspection confirms that the work complies with all applicable building codes. Inspectors may visit at multiple points: before work begins, during installation, and after completion. Each visit focuses on different aspects, from materials and slope to fastening and flashing.

What is Looked at During a Roof Inspection?

• Material Compliance: Approved membranes, insulation, and coatings
• Attachment Method: Proper fastening of all roof layers
• Slope & Drainage: Code-compliant pitch and functional drainage systems
• Fire Ratings: Materials must meet required flame spread classifications
• Ventilation & Insulation: Proper airflow and energy efficiency
• Perimeter & Flashing: Secure detailing at edges, penetrations, and transitions

Planning a Code-Compliant Roof Replacement

A successful commercial roof replacement starts with understanding your legal responsibilities. Building codes, permit approvals, and inspection checkpoints all affect how your project moves forward. The earlier you plan for these steps, the easier it is to avoid delays and costly rework.

This process begins before the first shingle or membrane is touched. You must verify local requirements, confirm material approvals, and coordinate with the appropriate agencies. With a clear plan and the right contractor, you can confidently move through each stage.

How Can I Make Sure My Roof Replacement Meets Local Codes?

Begin by checking with your local building department or municipal code office. Each jurisdiction sets its own standards for commercial roofing, and those rules may include details on insulation, slope, drainage, and fire ratings. Understanding these requirements early helps you choose the right system for your building.

Next, work with a contractor who has experience meeting those exact codes. A qualified team will already know how to pull permits, pass inspections, and use code-approved materials. They’ll also help you organize the necessary documentation to prove compliance at every stage.

Choose a Contractor Who Knows the Rules

Hiring a roofing contractor who understands local codes isn’t just a time-saver; it’s a risk reducer. Code violations can halt a project mid-installation, add unexpected costs, or even void warranties. That’s why choosing a partner with proven experience matters.

Sherriff Goslin Roofing has worked in Indiana, Ohio, and Michigan for decades. We’re familiar with how codes differ from one region to another and how to keep your project aligned from start to finish. You can trust us to handle the process the right way.

Trust Sherriff Goslin to Get It Right

We help commercial building owners meet code, stay on schedule, and avoid regulatory headaches. From the first inspection to the final sign-off, we manage the details that protect your investment. You'll get clear updates, proper documentation, and a roof that’s built to spec.

Let’s make your next roof replacement simple, safe, and fully compliant. Contact Sherriff Goslin Roofing today to get started with a professional code-based assessment.