Thermally Broken vs Non-Thermally Broken Steel Windows and Doors

Steel is the most widely utilised material of all other metals in the field of architecture, engineering, and construction. This highly efficient material is as flexible as you want it to be, hence, fitting well in the macro features of steel frameworks to the minute window elements. Steel windows and doors offer aesthetics along with functionality. It comes with slim frames, sleek sight-lines, larger glass panes, and excellent quality. This metal is not only beautifully attractive but also excels in terms of being flexible, durable, and secure building material.

Comparing steel to any other material, thermally broken steel windows or doors are the only ones that outperform typical steel components. Considering a renovation or retrofitting of a house, thermally broken steel windows and doors should be at the top of the list.

What is thermally broken

Thermal breaks were developed by the aluminium industry. Thermal breaks prevent heat from transferring from the exterior to the interior of the extrusion. They are extruded or molten polymer (plastic) parts that are inserted into voids or cavities. Aluminium’s high durability made this a simple task. However, due to the hot-rolling process of producing steel frames, this concept was not easily obtainable.

Most efficiency standards have been changed to meet increasingly severe criteria as a result of surpassing the needs of energy codes. The steel sector raises the stakes in terms of code observance. Extremely energy-efficient doors or windows, known as thermally broken steel openings, are now possible owing to advances and innovations in technology.

Thermal breaking is used to reduce undesired warmth or heat movement within a structure. Steel windows’ interior and exterior frames are divided in half, with insulating material – polyamide, or polyurethane insulating polymer reinforced with fibre between them.

This provides users with an optimal and pleasant room temperature by reducing convection and conduction of outside energy transfer to the interiors of houses during the summer and keeping the required heating during the wintertime. As the heating and cooling loads of the residential structure reduce, the energy savings skyrockets, saving money as well.

When do you need specify thermally broken 

Thermally broken windows and doors have a relatively small profile with high durability. This system offers tremendous design versatility with a wide range of shapes and sizes. However, the question arises that when should a thermally broken door or window be considered?

  • If the project site is located in an area that experiences extreme heat and humidity, it means the flow of heat from exterior to interiors through steel windows or doors. When heat collides with the steel temperature, the material has the ability to shed condensation. Thermally broken metal is less likely to sweat because the insulator separates the inner part from the hotter external surfaces.
  • Similarly, for a project in a cooler climate, the goal is to put the cold and frost to exteriors while facilitating warmth via heating systems.

Non-thermal break windows enable cold to pass from the outside to the inside, resulting in condensation, moisture, and frost accumulation on the glass. Thus, in these conditions, a thermally broken door or window is the first step towards an energy-efficient structure.

What are the Advantages of Thermally Broken Openings?

Sleek profiles of thermally broken doors and windows offer a traditional visual appeal combined with the high-performance of 21st Century products. The thermal break functions as a protective layer against heat transfer which is achieved by the installation of a thermal insulator.

Extreme temperatures, whether hot or cold, have an impact on the degree of comfort within the home. Here are a few benefits of installing thermally broken steel windows and doors:

  • These are 1000 times slower conductors of heat and noise than the conventional non-thermally broken doors or windows.
  • They serve as efficient flame suppressors.
  • Thermally broken systems offer desired levels of security with simple and low maintenance required.
  • These are long-lasting systems that are very resilient and offer non-corrosive openings.
  • They result in extreme levels of energy efficiency.
  • The sturdy design of the frames has the potential to hold triple glazings.

Metal windows, as we all know, have many benefits and have been around for decades. They may be found in some of the most famous structures around the globe. They are unquestionably synonymous with longevity, high durability, and ease off care. However, the most recent and most sought-after thermal break technology is an invention with numerous and relentless advantages.

Traditional Aesthetics with Energy Efficiency

The modern solution for energy efficiency can now be combined with the old aesthetics of steel-framed doors and windows. The advancement in technology has allowed us to retain the look of the steel openings from the past with an injected thermal break technology that ensures temperature control and comfort inside the buildings.

The narrow sight-lines of this system make the most of natural light while decreasing the need for artificial illumination. Steel’s inbuilt strength makes the doors and windows a durable and safe option. The traditional aesthetics with clean and thin designs make these an appropriate choice for new or renovation projects.


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