Pros and Cons of Thermally Broken Aluminum Frames in Commercial Glazing

Is It the Right Choice for Your Commercial Building in California or Arizona?

In commercial construction, especially in regions with temperature extremes like California and Arizona, material performance directly affects energy efficiency, tenant comfort, and long-term operational costs. One of the most critical yet often overlooked elements is the framing system used in storefronts, curtain walls, and window assemblies. Among these, thermally broken aluminum frames have become a popular choice, but are they always the right one?

This post breaks down the benefits and trade-offs of thermally broken frames so you can make informed decisions for your next commercial glazing project.

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What Are Thermally Broken Aluminum Frames?

Aluminum is widely used in commercial glazing because of its strength, clean aesthetic, and durability. However, it’s also a highly conductive material, which means it easily transfers heat and cold between interior and exterior environments.

Thermally broken frames feature a non-metallic barrier (usually polyamide or polyurethane) between the interior and exterior aluminum components. This barrier interrupts thermal transfer, improving insulation and energy efficiency.

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Pros of Thermally Broken Aluminum Frames

1. Improved Energy Efficiency

• Reduces thermal bridging, helping buildings retain interior temperatures
  
  
• Supports compliance with energy codes like Title 24 in California
  
  
• Can contribute to LEED certification points
  
  

2. Better Condensation Control

• Minimizes the risk of condensation build-up on interior frame surfaces
  
  
• Helps protect interior finishes and prevents mold around frames
  
  

3. Enhanced Comfort for Occupants

• Less temperature fluctuation near glazed areas like lobbies, conference rooms, and entryways
  
  
• Particularly valuable in high-exposure buildings or curtain wall applications
  
  

4. Long-Term Operational Savings

• Energy savings from HVAC reduction can result in measurable ROI over time
  
  

Reduced strain on mechanical systems, especially in desert or coastal climates

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Cons of Thermally Broken Aluminum Frames

1. Higher Initial Cost

• Thermally broken frames can cost 15 to 30 percent more than non-thermal alternatives
  
  
• May not be justifiable in interior-only applications or small storefronts
  
  

2. Longer Lead Times

• Custom frame systems with thermal breaks may require additional fabrication or sourcing time
  
  
• Coordination with glazing contractors early in the design phase is essential
  
  

3. Complex Detailing and Installation

• Requires precise shop drawings and qualified installers
  
  
• Errors in field assembly can compromise thermal performance
  
  

4. Overengineering in Mild Climates

• In temperate zones or shaded conditions, the added performance may be unnecessary
  
  

A project-specific analysis is key to avoiding overspending on performance features you may not need

When to Use Thermally Broken Frames

Best Use Cases:

• High-rise buildings with large glass-to-wall ratios
  
  
• Public sector projects requiring strict energy performance compliance
  
  
• Retail and mixed-use buildings with long sun exposure in Southern California or the Arizona desert
  
  
• LEED or net-zero energy buildings looking to maximize envelope performance
  
  

Ramos Industries’ Approach

At Ramos Industries, Inc., we assess each commercial project’s thermal, structural, and budgetary needs before recommending a glazing system. Our team works with top aluminum manufacturers to source thermally broken frames that balance performance, code compliance, and constructability.

We’ve delivered high-efficiency solutions across offices, healthcare centers, retail complexes, and educational facilities, with a strong focus on precision, safety, and minimal disruption during installation.

Make the Right Choice for Your Building

If you’re weighing performance upgrades or designing a new structure, understanding the pros and cons of thermally broken aluminum frames is essential to getting the most value from your commercial glazing system.

Visit www.ramosindustriesinc.com to learn more or contact our team to discuss thermally broken framing options for your next project in California or Arizona.

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