Glazing Product Approval Engineering: TDI, Florida Product Approval, FM Approvals & Façade Product Testing
For manufacturers of curtain wall, storefront, window wall, architectural panels, structural glass and other façade products, product testing and approval are becoming an increasingly important part of bringing building-envelope systems to market.
Texas TDI Windstorm evaluations, Florida Product Approval, Miami-Dade NOAs, FM Approvals, ICC-ES evaluations and other certification programs all address different requirements.
But behind many of these approvals is another critical discipline:
Glazing Product Approval Engineering and Façade Product Testing & Engineering.
Before a product can be tested, certified or approved, someone often needs to determine how the system should be engineered, configured, documented and tested.
And after approval, the product still has to be correctly applied to actual construction projects.
That creates an increasingly important connection:
Product Design → Structural Engineering → Testing → Documentation → Approval → Project Application
Why Glazing Product Testing and Approval Are Becoming More Important
The building envelope is being asked to do more than ever.
Curtain wall, storefront, window wall, architectural panels, structural glass, railings and other façade systems must withstand increasingly demanding wind, impact, water, structural movement, energy and life-safety requirements.
At the same time, Owners, Architects, General Contractors, insurers and building officials increasingly want documentation demonstrating that products and systems will perform as intended.
Several trends are driving this change.
Greater Concern About Severe Weather and Building Resilience
Hurricanes, extreme wind events, hail and water intrusion can create enormous property losses.
That puts increased attention on the exterior building envelope—the first major line of defense between severe weather and the building interior.
For glazing and façade systems, performance can depend on much more than the glass itself.
It can involve:
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Glass type and thickness
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Aluminum framing
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Mullion reinforcement
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Anchors and fasteners
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Connection geometry
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Structural substrates
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Sealants and gaskets
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Panel attachment
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System dimensions
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Wind pressures
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Impact resistance
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Building movement
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Installation conditions
The performance of the complete system matters.
Building Envelope Systems Are Becoming More Complex
Modern façades increasingly combine glass, aluminum, architectural panels, structural silicone, steel, cold-formed framing, specialty anchors and other materials.
Architectural designs are also pushing systems farther.
Larger glass sizes, unusual geometries, taller elevations, mixed-material façades and increasingly sophisticated attachment systems can create conditions that standard product literature may not fully address.
That makes façade engineering and product evaluation increasingly important.
New Façade Products Are Entering the Market
Manufacturers continue developing new façade materials, attachment systems and proprietary products.
Building codes, however, cannot provide prescriptive requirements for every new product or configuration.
Programs such as ICC-ES provide mechanisms through which proprietary or innovative products can be evaluated for code compliance.
For manufacturers, that creates an important question:
How do you engineer, test and document a façade product so that Architects, Engineers, Contractors and building officials can confidently use it?
Owners and Insurers Want to Reduce Risk Before Installation
Replacing façade systems after occupancy is expensive.
Finding a design or compatibility problem during engineering is considerably less expensive than discovering it after thousands of square feet of material have been fabricated and installed.
That is one reason third-party engineering reviews, product evaluations, testing programs and approval requirements are becoming increasingly important.
The objective isn’t simply compliance.
It is risk reduction before construction.
Major Product Approval and Certification Programs Affecting Glazing & Façade Systems
Although these programs are sometimes discussed together, their purposes differ.
Texas TDI Windstorm Product Evaluation
The Texas Department of Insurance administers windstorm-related requirements that are particularly important in designated coastal areas.
Product evaluation can involve windows, doors, skylights and other building-envelope components exposed to significant wind pressures and impact conditions.
For manufacturers entering these markets, TDI product approval engineering support can involve structural calculations, product configurations, testing documentation, anchorage requirements and clearly defined installation limitations.
Florida Product Approval
Florida maintains a statewide product approval system for certain building products subject to the Florida Building Code.
Exterior doors, windows, panel wall systems and other envelope components can fall within the program.
For glazing and façade manufacturers, Florida Product Approval engineering can become an important part of introducing or expanding products into the Florida construction market.
Because Florida buildings face significant hurricane exposure, wind pressure and impact performance are particularly important considerations.
Miami-Dade NOA
Miami-Dade County’s Notice of Acceptance program is particularly well known within the hurricane-resistant building-product industry.
For glazing manufacturers, window and door companies and other façade-product manufacturers, Miami-Dade acceptance can be commercially important because of the demanding High-Velocity Hurricane Zone requirements associated with South Florida.
FM Approvals
FM Approvals operates differently.
It is an independent testing and certification organization closely associated with property-loss prevention.
FM-approved building products and assemblies can be particularly important on projects where insurers, Owners or specifications require products meeting established property-protection standards.
For façade manufacturers, this can include exterior wall assemblies and other components affecting wind, fire and property resilience.
ICC Evaluation Service — ICC-ES
ICC-ES evaluates building products and systems for compliance with applicable building codes.
This can be especially valuable for innovative or proprietary products that aren’t easily addressed through conventional prescriptive code provisions.
For a manufacturer introducing a new panel attachment, anchoring system, wall product or other proprietary façade technology, an evaluation report can provide building officials, Architects and Engineers with an established basis for determining code compliance.
FGIA / AAMA
The Fenestration and Glazing Industry Alliance and standards historically associated with AAMA are deeply connected to window, curtain wall, storefront and fenestration performance.
Structural performance, air infiltration, water penetration and other system characteristics are commonly evaluated using these industry standards and test procedures.
NFRC, UL and ASTM
NFRC focuses heavily on energy performance, including U-factor and Solar Heat Gain Coefficient.
UL testing and certification can become particularly important when glazing or façade components are part of fire-rated or other life-safety assemblies.
ASTM develops many of the test standards used throughout the glazing and façade industry for structural performance, air leakage, water penetration, impact resistance and other performance criteria.
Façade Product Testing Is About More Than Passing a Test
This distinction is important.
A manufacturer can spend significant money testing a product.
But before testing begins, there may be a much more valuable strategic question:
What should we test?
Consider a glazing or panel system with multiple:
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Mullion depths
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Reinforcing options
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Glass thicknesses
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Anchor configurations
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Fastener patterns
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Panel sizes
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Substrates
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Spans
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Design pressures
Testing every possible combination would be impractical.
The manufacturer therefore needs to determine which configurations provide the most useful engineering information and potentially the broadest practical application.
That can require significant structural engineering before the laboratory testing ever begins.
The objective becomes:
Engineer the Testing Program — Not Just the Product
A well-planned façade product testing program can consider which system configurations, dimensions, attachments and loading conditions provide the manufacturer with the greatest useful range of applications.
That is where specialized façade product testing engineering can add considerable value.
Engineering Support for Glazing & Façade Product Manufacturers
Product manufacturers increasingly need more than a testing laboratory.
They may need an engineering partner capable of connecting the different stages of product development and approval.
Engineering support can include:
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Preliminary structural analysis
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Product configuration evaluation
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Test-specimen engineering
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Design-pressure calculations
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Glass and framing analysis
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Anchorage and fastener evaluation
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Structural connection design
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Engineering drawings
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Product limitation tables
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Installation requirements
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Engineering interpretation of test results
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Code-compliance documentation
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Project-specific engineering based on approved products
This becomes particularly valuable when engineering and drafting are coordinated rather than separated.
A calculation package that doesn’t match the drawings creates risk.
A product approval that is difficult for contractors to interpret creates risk.
Installation requirements that aren’t clearly translated into project documentation create risk.
The technical information has to work together.
Product Approval Does Not Replace Project-Specific Façade Engineering
An approved product still has to be appropriate for the actual building.
That can require evaluating:
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Project-specific wind pressures
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Building height and exposure
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Opening dimensions
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Structural spans
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Glass sizes and thicknesses
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Anchorage substrates
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Edge distances
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Fastener requirements
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Building movement
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Deflection compatibility
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Interfaces with adjacent systems
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Installation conditions
The question isn’t simply:
“Is this an approved product?”
The better question is:
“Is this product approved, engineered and properly applied for this specific building condition?”
That distinction becomes increasingly important as façades become more complex.
What Product Approvals Mean for Glazing Contractors
For Glazing Contractors, product approvals can provide valuable engineering information—but they also establish limitations that must be understood.
A tested or approved configuration may specify particular anchors, fasteners, mullions, reinforcing, glass configurations or maximum sizes.
The actual project may differ.
That is where project-specific glazing engineering becomes important.
Contractors need to understand both:
what the approval allows and where the project moves beyond the approved configuration.
Identifying those differences early can prevent redesign, resubmittals, fabrication delays and field problems.
Façade Engineering Is Increasingly About Risk Management
For decades, structural engineering has fundamentally answered the question:
Will it structurally work?
That remains essential.
But today’s building-envelope industry increasingly asks additional questions:
Has it been tested?
Does it meet the applicable code?
Is the product approved for this application?
Does the installed configuration match the tested configuration?
Are the drawings consistent with the calculations?
Have movement and interface conditions been considered?
Can the contractor actually build what has been engineered?
Those are broader building-envelope risk questions.
They help explain why product evaluation, third-party review, testing, certification and approval programs are becoming increasingly important.
JEI Structural — Glazing Product Approval & Façade Testing Engineering Support
JEI Structural specializes in the structural engineering and drafting of glazing, façade and architectural panel systems.
Our experience includes curtain wall, storefront, window wall, structural glass, glass railings, canopies, architectural panels and specialty building-envelope systems.
For façade product manufacturers, JEI can provide engineering and drafting support associated with:
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Product development
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Structural product evaluation
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Test planning and specimen engineering
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Product approval engineering support
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Design-pressure and span analysis
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Anchorage and connection engineering
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Engineering drawings and documentation
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Product application tables
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Project-specific engineering
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Product expansion and modification
JEI can support manufacturers pursuing requirements associated with programs such as TDI Windstorm, Florida Product Approval, Miami-Dade NOAs, FM Approvals and ICC-ES, working alongside the appropriate testing, certification and approval organizations as required.
For Architects, Owners and General Contractors, JEI also provides Design Assist, Third-Party Façade Structural Reviews, Building Envelope Risk Reviews, delegated-design coordination and technical consulting intended to identify façade risks before they become construction problems.
For Glazing and Building Envelope Contractors, JEI provides project-specific structural engineering and drafting through one specialized façade team.
Engineering & Drafting Under One Roof
Product development shouldn’t end with a calculation.
The engineering, drawings, testing requirements, approval documentation and eventual project application need to work together.
That’s where specialized façade engineering can make a difference—from the development of a glazing or panel product through its application on an actual building.
JEI Structural
Glazing & Panel Systems Engineering
JEIstructural.com
We Teach. We Protect. We Care.
Short Reel – JEI Structural Company Lesson Learned – Product Approvals
Coming soon
Short Reel Video Series | The Delegated Design Gap Explained
Stewart Jeske, P.E. has developed a series of educational videos explaining the engineering principles behind structural building movement, delegated design, and building envelope coordination.
Watch the complete playlist:
https://www.youtube.com/playlist?list=PLdzXpR57TVwg81I_zW55MfjiH0HhQHA-W
Final Thoughts
Commercial building envelopes are expected to perform for decades.
When structural building movement is overlooked—or addressed too late—problems may not appear until years after occupancy. By then, the original cause is often hidden behind symptoms such as leaking sealants, cracked glass, or recurring maintenance issues.
Successful projects don’t happen because buildings don’t move.
They happen because project teams anticipate that movement, communicate it clearly, and engineer glazing systems that accommodate it from the very beginning.