Thermal Breaks in Glass Windows and Doors

Table of Contents

What Are Thermal Breaks in Glass Windows and Doors?

In glass windows and doors, thermal breaks are commonly used in:

  • Aluminum sliding windows

  • Casement windows

  • Folding doors

  • Sliding glass doors

  • Curtain wall systems

The insulating barrier is usually made of polyamide, which significantly reduces thermal conductivity.

How Thermal Break Technology Works

In standard aluminum windows and doors, heat easily passes through the metal frame. This causes:

  • Hot interiors in summer

  • Cold interiors in winter

  • Higher electricity bills

  • Condensation problems

With thermal break systems, the non-metallic barrier separates the interior and exterior aluminum sections, minimizing heat flow and improving overall thermal performance.

When combined with double-glazed or Low-E glass, thermal breaks create a highly energy-efficient solution.

Key Benefits of Thermal Break Windows and Doors

 Energy Efficiency

Thermal breaks reduce heat transfer, lowering air conditioning and heating costs.

 Improved Indoor Comfort

Rooms stay cooler in summer and warmer in winter.

 Noise Reduction

When paired with double glazing, they significantly reduce outside noise.

 Condensation Prevention

Thermal barriers help prevent moisture buildup on frames.

 Durability & Strength

Aluminum remains strong and long-lasting while offering superior insulation.

 Modern Aesthetic Appeal

Slim frames allow larger glass panels and contemporary designs.

Thermal Break vs Standard Aluminum Systems

Feature Standard Aluminum Thermal Break System
Heat Transfer High Low
Energy Efficiency Basic Excellent
Condensation Risk Higher Minimal
Cost Lower Higher (but cost-saving long term)

Although thermal break systems have a higher initial cost, the long-term savings on energy bills make them a smart investment.

Where Thermal Break Systems Are Commonly Used

Thermal break glass windows and doors are ideal for:

  • Luxury homes

  • High-rise apartments

  • Commercial offices

  • Hospitals

  • Educational institutions

  • Coastal and extreme climate areas

They are particularly beneficial in regions with harsh summers or cold winters.

Popular Types of Thermal Break Glass Systems

  • Sliding thermal break doors

  • Casement thermal break windows

  • Tilt & turn systems

  • Bi-fold glass doors

  • Fixed glass panels

Each option can be customized with double or triple glazing for maximum efficiency.