What is a thermal break? Enhancing energy efficiency in steel windows and doors

• 18 December 2024
• News

Understanding thermal breaking

When it comes to steel windows and doors, one crucial innovation that has revolutionised their performance is thermal breaking technology. This engineering solution addresses the age-old challenge of heat loss through metal frames, making high quality modern steel windows and doors more energy-efficient than ever before.

The science behind thermal breaks

What is a thermal break?

A thermal break is an insulating barrier positioned within a window or door frame that separates the interior and exterior metal components. This break creates a highly effective thermal barrier that significantly reduces heat transfer through the frame, helping to improve the overall thermal performance of the building.

How thermal breaking works

A thermal bridge or thermal bridging often occurs in metal frames (with high thermal conductivity) as the material creates a direct path for heat to escape. Thermal breaking technology prevents this from happening by incorporating materials with low thermal conductivity between the inner and outer sections of the frame. This clever solution minimises temperature transfer and helps maintain consistent indoor temperatures.

Benefits of thermally broken steel windows and doors

Improved energy efficiency

Thermal break solutions help to significantly reduce energy loss. By incorporating a thermal barrier, our T60® steel windows achieve U-values as low as 0.8W/m²K, exceeding current building regulation requirements under Part L.

Reduced energy costs

Thermally broken windows and doors also offer substantial long-term savings on energy bills. By effortlessly maintaining indoor temperatures, less energy is needed to heat properties significantly reducing monthly living costs.

Improved comfort

Thermal break technology also creates more comfortable living conditions by dramatically improving the thermal performance of the window and reducing the amount of heat loss within properties.

Crittall Windows’ innovative T60® steel system

Advanced thermal performance

Our T60® windows combine traditional aesthetics with modern thermal break technology. The system incorporates high-density polyurethane isolators that provide superior insulation properties. Double weatherstripping ensures exceptional protection against the elements, while the option for triple glazing further enhances thermal performance.

Design flexibility

Multiple configuration possibilities mean architects and homeowners can create bespoke solutions for any project with the T60® steel system.

While the extensive selection of RAL colours enables perfect matching with any architectural style or preference, the comprehensive range of hardware provides both numerous aesthetic choices.

Technical considerations

U-values and UK building regulations

Modern buildings must deliver high thermal performance, and our thermally broken steel system meet the latest building requirements. Not only do the impressive U-values ensure excellent thermal performance, but the advanced double glazing also enhances the overall energy efficiency.

Professional considerations

For architects and specifiers

Building envelope requirements must be thoroughly evaluated to ensure optimal performance within the overall structure. The integration of structural thermal breaks requires careful planning and coordination with other building elements. Energy performance targets must be met or exceeded while maintaining compliance with increasingly stringent building regulations. Each project requires careful consideration of these elements to achieve the perfect balance of performance and design.

Investment value

Long-term benefits

Thermally broken steel windows and doors are a sound investment for any property. The immediate benefit of thermally broken steel windows and doors is a reduction in energy costs which also provides ongoing returns throughout the lifetime of the installation. Plus, property values also improve with the addition of high-performance window and door systems.

The importance of efficient thermal breaks in modern construction

Ultimately, thermal breaking technology represents a significant advancement in steel window and door design.

With our T60® steel window and door system, commercial and residential buildings can achieve super energy efficiency without compromising the aesthetic appeal or structural integrity synonymous with steel windows and doors.

Advances in modern steel windows and doors

As a UK steel window and door manufacturer with experience spanning a century, we ensure all our steel systems meet the demands of contemporary construction while maintaining our iconic design.

We offer a wide range of quality steel systems that use either a traditional thermal break or new innovative solution. Both achieve outstanding thermal performance and significantly reduce the heat transfer between the inside and outside of a property.

For architects, contractors and homeowners looking to boost the energy efficiency of their next project, while maintaining the exceptional aesthetic of steel windows and doors, our products could be the perfect solution. Not only do they meet current building regulations, but they also deliver impressive energy efficiency.

Get in touch today to discuss your project requirements and to see whether Crittall Windows’ steel windows and doors would be the perfect match.