How do I handle a roof assembly that has no NOA or Florida Product Approval?

Shieldline Roofing - FAQ - How do I handle a roof assembly that has no NOA or Florida Product Approval?

Direct Answer

If a commercial roof assembly has no applicable Miami-Dade County Notice of Acceptance (NOA) or Florida Product Approval, do not assume that it can be installed simply because its individual components are commonly used or resemble an approved system. First, search the official approval databases and confirm whether the complete assembly is covered by an existing approval.

If no applicable approval can be located, contact the manufacturer for technical documentation, test reports, engineering calculations, and installation requirements. A Florida-licensed professional engineer or architect may need to evaluate the proposed assembly. Then consult the local building official or Authority Having Jurisdiction (AHJ) to determine whether an alternative compliance pathway is permitted and what supporting evidence is required.

Florida Building Code Section 104.11 provides a process for the building official to consider alternative materials, designs, and construction methods when the proposal satisfies the code’s intent and applicable performance requirements. However, this is not an automatic exemption from product-approval requirements. Certain roofing products and applications have specific approval requirements, and Miami-Dade County’s High-Velocity Hurricane Zone (HVHZ) may impose additional restrictions.

Bottom line: Verify the approval status, document the proposed assembly’s performance, obtain the required written acceptance or approval, and secure the necessary permit before installation. If the assembly cannot meet the applicable requirements, specify a suitable approved roofing system instead.

1. First, Determine Whether the Roof Assembly Really Has No Approval

Before treating an assembly as unapproved, search the official product-approval databases. A missing approval number on a contractor’s proposal does not necessarily mean that no approval exists.

Search using several identifiers, including:

  • Manufacturer or product brand name.
  • Product model, system name, or product number.
  • Florida Product Approval number, often identified by an FL number.
  • Miami-Dade NOA number, if known.
  • Roofing system category and applicable code edition.
  • Previous manufacturer names or older product designations, where relevant.

Use these official resources:

Check the approval’s status, applicable code edition, scope, installation limitations, and any relevant revisions. An older approval may be useful for understanding an existing roof, but it should not automatically be assumed acceptable for new work under current requirements.

2. Verify the Complete Roofing Assembly, Not Just One Component

A roofing system is made up of interacting components. Approval of a membrane, coating, insulation product, or fastener does not necessarily establish approval of the complete roof assembly.

Depending on the system, the assembly may include:

  • Roof deck and substrate.
  • Insulation and cover boards.
  • Membrane, built-up roofing, spray polyurethane foam, or other primary roofing material.
  • Fasteners, adhesives, plates, and attachment methods.
  • Vapor retarders and other required layers.
  • Roof edge metal, flashings, drains, and penetration details.
  • Protective coatings and other specified system components.

Confirm that the approval covers the actual deck type, component combination, attachment pattern, and installation method proposed for the building. Substituting a component or changing the attachment method can affect the assembly’s tested performance and may place the installation outside the approval’s scope.

3. Ask the Manufacturer for Supporting Technical Documentation

If no applicable approval can be found, ask the manufacturer to provide the technical evidence available for the proposed assembly. The information should address the actual system and its intended application, rather than relying solely on general product literature.

Depending on the assembly and applicable requirements, useful documentation may include:

  • Laboratory test reports from appropriately approved or recognized testing facilities.
  • Engineering calculations and supporting design assumptions.
  • Product evaluation reports or certification documentation.
  • Wind-uplift test results and applicable design-pressure information.
  • Fire-classification and other required performance evidence.
  • Water-resistance or other relevant performance data.
  • Detailed installation instructions and limitations.
  • Documentation identifying the exact deck type, components, and assembly configuration tested or evaluated.

The required evidence depends on the product, code provisions, and proposed approval route. A manufacturer’s letter stating that a system is equivalent to an approved product is not, by itself, a guarantee that the building official will accept it.

4. Consult a Florida-Licensed Design Professional

A Florida-licensed professional engineer or architect may need to evaluate the proposed assembly and prepare supporting calculations, a technical report, or sealed documentation where appropriate.

The evaluation should consider the performance requirements relevant to the specific roof system, which may include:

  • Wind uplift and attachment performance.
  • Deck and substrate compatibility.
  • Roof perimeter, corner, and flashing details.
  • Water infiltration and weather resistance.
  • Fire classification and other applicable code requirements.
  • Durability and suitability for the intended application.

For hurricane-prone locations, the analysis should address the actual building’s design conditions and roof zones. A calculation based on a different deck, attachment configuration, or test assembly may not support the proposed installation.

Engineering documentation can support an alternative compliance request, but it does not automatically override mandatory product-approval requirements or guarantee acceptance by the AHJ.

5. Ask the Building Official About an Acceptable Compliance Pathway

Before purchasing materials or starting installation, submit the proposed assembly and supporting documentation to the local building department for review. Ask which approval method is acceptable for the particular product, project, and jurisdiction.

Florida Building Code Section 104.11 addresses alternative materials, designs, and construction methods. Under this provision, the building official may approve an alternative when it is satisfactory, complies with the code’s intent, and provides performance at least equivalent to the prescribed requirements for the relevant qualities, including strength, effectiveness, fire resistance, durability, and safety.

Depending on the applicable code and product category, the acceptable route may involve a recognized product evaluation report, testing, certification, engineering analysis, a formal product approval, or another specifically permitted process.

Obtain the determination through the applicable review and permitting process. Do not rely solely on an informal verbal statement when formal approval or written documentation is required.

Official reference: Florida Building Code, Building — Chapter 1, Section 104.11.

6. Pay Special Attention to Miami-Dade and HVHZ Projects

For projects in Miami-Dade County’s HVHZ, do not assume that an alternative accepted elsewhere in Florida will automatically be acceptable locally. Roofing materials and assemblies are subject to specific requirements, and local permit procedures may require an applicable NOA or other documentation accepted under the governing code.

Miami-Dade County’s Product Control Section reviews technical documentation for construction products and systems. Its approval resources provide access to applicable NOAs, product listings, and information about the approval process.

Before proceeding with an assembly that lacks an NOA, contact the relevant building department and, where appropriate, Miami-Dade Product Control to clarify the required documentation and whether a recognized approval pathway is available.

Official resources:

7. What If the Assembly Cannot Be Approved?

If the manufacturer cannot provide adequate evidence, the assembly falls outside the permitted approval conditions, or the building official does not accept the proposed alternative, the project team should not proceed with that assembly as submitted.

Practical options may include:

  • Selecting a currently approved system: Choose an assembly whose approval covers the actual building and intended application.
  • Revising the assembly: Work with the manufacturer and design professional to determine whether a compliant configuration is available.
  • Obtaining the required product approval: Where appropriate, the manufacturer may pursue the applicable product-evaluation and approval process.
  • Revising the project documents: Submit updated specifications, details, and supporting evidence for review before installation.

A compliant alternative may be more practical than trying to justify an undocumented system. The decision should be based on the building’s requirements, technical evidence, permitting conditions, and long-term performance considerations.

What to Do When a Roof Assembly Has No NOA or Florida Product Approval

Step Action Purpose
1 Search the official approval databases. Confirm whether an applicable approval already exists.
2 Verify the complete assembly and its limitations. Determine whether the proposed configuration is covered.
3 Request technical documentation from the manufacturer. Gather evidence supporting code compliance.
4 Consult a Florida-licensed design professional when needed. Evaluate engineering and performance requirements.
5 Submit the proposal to the AHJ. Establish the acceptable approval pathway before installation.
6 Obtain the required approvals and permit. Ensure the work is authorized and documented.
7 Use an approved alternative if necessary. Avoid proceeding with a system that cannot demonstrate compliance.

Bottom Line

When a roof assembly has no NOA or Florida Product Approval, first verify that no applicable approval exists. If none can be found, obtain the manufacturer’s technical evidence, involve a qualified Florida design professional when necessary, and ask the local building official to determine whether an alternative compliance pathway is allowed.

Do not assume that approval of individual components proves the complete assembly is compliant, or that an engineering letter automatically substitutes for a required approval. For HVHZ projects, verify the applicable local requirements before proceeding. If the proposed assembly cannot meet those requirements, select a suitable approved roofing system.

Related Questions

Sources

Last reviewed: October 2026

Related Resource

Learn more about protecting and restoring commercial roofing systems through Commercial Roof Coatings & Restoration.

Commercial Roof Coatings & Restoration

Commercial roof restoration requires the right materials, proper substrate preparation, and a system suitable for the building’s conditions and applicable requirements. ShieldLine Roofing helps commercial property owners evaluate existing roof conditions and explore appropriate coating and restoration options for South Florida properties.

Explore Commercial Roof Coatings & Restoration to learn more about available services.

Rylee Hage - Founder of Shieldline Roofing

Meet the Founder: Rylee Hage

  • • Over 15 years of mastery in the roofing industry, bridging the gap between standard service and meticulous craftsmanship.
  • • Founded Shieldline Roofing on the principles of unwavering integrity and a profound commitment to protecting families.
  • • Dedicated to providing a personalized client experience built on a foundation of absolute trust.
Call Now!