Why Choose Thermally Broken Aluminum Doors and Windows?

Have you ever felt cold drafts seeping through your windows during winter? Or struggled with unbearable heat in summer, even with the air conditioning on?

This happens because traditional aluminum doors and windows have high thermal conductivity, making it difficult to maintain a stable indoor temperature. Thermal break aluminum, with its superior insulation performance, effectively reduces heat transfer, creating a more comfortable living environment.

But what exactly are thermal break aluminum doors and windows? Why should you choose them? How do they compare to regular aluminum windows and doors? Let’s dive in and explore the differences.

Core Technology and Unique Advantages of Thermal Break Aluminum Windows and Doors

What is Thermal break aluminum?

Thermal Break Aluminum, also known as Insulated Thermal Break Aluminum Profile or Thermal Insulated Aluminum Alloy Profile, is an advanced material designed to reduce heat transfer by incorporating an insulating strip within the aluminum structure. The core principle involves inserting a thermal break strip (typically nylon PA66) to separate the aluminum profile, creating a “thermal barrier” that significantly enhances insulation performance.

What is the difference between aluminum and thermally broken aluminum?

Comparison Criteria	Standard Aluminium Windows	Thermally Broken Aluminium Windows
Thermal Conductivity (W/m·K)	160-200 (High thermal conductivity)	1.8-3.5 (Thermal break reduces heat transfer, data from EN 10077-2)
U-Wert (W/m²·K)	5.8-6.5 (Based on GB/T 8478-2020)	1.8-2.5 (Based on JGJ/T 151-2008; Passive buildings require ≤2.0)
Energy Efficiency	Low; increases energy consumption by 30-50% annually	High; reduces energy consumption by 30-40% (Data from Passive Low-Energy Building Guidelines)
Condensation Resistance	High; prone to condensation, leading to mold and corrosion	Low thermal break + multi-layer sealing reduces condensation risk
Sound Insulation (dB)	25-35 dB, limited noise reduction with single glazing	40-50 dB, superior noise reduction with double/triple glazing + sealing strips (GB/T 7106-2019)
Wind Pressure Resistance (Pa)	1500-2500 Pa, suitable for low-rise buildings	3000-5000 Pa, suitable for high-rise buildings (Based on GB/T 7106-2019)
Airtightness (m³/㎡·h)	4.5-8.0, moderate air infiltration	1.0-2.5, 6th-grade standard, suitable for energy-efficient buildings
Water Tightness (Pa)	250-350 Pa, may experience leakage in heavy rain	500-700 Pa, high resistance to water infiltration (GB/T 7106-2019)
Durability (Years)	10-20 years, susceptible to oxidation and deformation	30+ years, high-strength aluminium alloy with weather-resistant seals
Material Strength (MPa)	150-180 MPa (6063-T5 aluminium alloy)	250-300 MPa (High-strength 6063-T6 aerospace-grade aluminium)
Surface Treatment	Anodizing, standard coating, moderate corrosion resistance	Fluorocarbon coating, electrophoresis, powder coating, highly weather-resistant
Recommended Applications	Suitable for standard residential and commercial buildings	Ideal for high-end homes, office buildings, coastal & extreme climate regions

What is the advantage of thermally broken doors and windows?

1. Outstanding Thermal Insulation Performance

The thermal break aluminum doors and windows are made of thermal break aluminum profiles with heat insulation materials added in the middle to effectively block the heat transfer between indoor and outdoor areas and significantly reduce heat loss. This design can reduce heat loss by 1/3 in winter and block high outdoor temperatures in summer, reducing air conditioning load and achieving energy-saving effects.

2. Exceptional Sealing Performance

Advanced sealing technology is used to ensure the airtightness of doors and windows. The quality of the sealing performance directly affects the dustproof, waterproof, and soundproof effects. By adopting a multi-chamber structure, EPDM sealing strips, and double or triple-layer insulated glass, noise can be effectively reduced by 30-50 dB while preventing rainwater and dust from entering indoors.

3. Durable and low maintenance

The aluminum alloy surface of broken bridge aluminum doors and windows has strong impact resistance, is not easily corroded by acids and alkalis, does not yellow or fade, and requires almost no maintenance.

4. Excellent fire and burglary resistance

The aluminum alloy material itself is non-combustible, providing excellent fire resistance. At the same time, broken bridge aluminum doors and windows are equipped with high-quality hardware accessories and premium decorative locks, their superior burglary resistance.

5.Diverse design options (customizable)

Through powder coating surface treatment, a variety of colors can be produced to suit different interior design styles. It can even achieve a dual-color design for the interior and exterior.

Application Scenarios of Thermally Broken Aluminum Doors and Windows

High-end Residences and Villas → The top choice for homeowners seeking superior comfort, high sound insulation, and energy efficiency.

Commercial Office Buildings and Hotels → Enhances building energy efficiency, reducing heating and cooling costs while meeting green building standards.

Coastal and Extreme Cold Regions → Engineered to withstand harsh weather conditions with excellent wind resistance, waterproofing, corrosion resistance, and freeze-crack prevention.

Airports, Schools, and Hospitals → Effectively reduces external noise, creating a quiet and comfortable environment.

Future Development Trends of Thermally Broken Aluminum

With continuous advancements in technology and the growing emphasis on environmental sustainability, the thermal break aluminum industry is facing new opportunities for development. In the future, the industry is expected to achieve significant breakthroughs in the following areas:

1. Application of New Insulating Materials

As material science continues to evolve, innovative insulating materials are emerging, offering enhanced thermal performance. The integration of these advanced insulation materials with thermal-break aluminum profiles will further improve energy efficiency, meeting the increasingly stringent building energy efficiency standards worldwide.

2. Integration of Smart Technology

With the widespread adoption of smart home technology, thermal-break aluminum windows and doors are expected to become more intelligent and user-friendly. By incorporating sensors and automated control systems, users will be able to remotely control and automate their windows and doors, optimizing ventilation, security, and energy efficiency. This trend aligns with the growing demand for smart building solutions in modern architecture.

3. Environmental Sustainability and Circular Economy

As environmental awareness continues to rise, the thermal break aluminum industry will increasingly focus on sustainable development. This includes the adoption of eco-friendly materials and manufacturing processes, as well as promoting the recycling and reuse of old thermal break aluminum products. By embracing green and low-carbon practices, the industry aims to contribute to a more sustainable and environmentally responsible future.

Conclusion

Compared to conventional aluminum alloy windows and doors, thermally broken aluminum profiles incorporate PA66 thermal break strips that effectively reduce heat conduction, solving the issues of high thermal loss and excessive energy consumption common with standard aluminum systems. Additionally, these profiles significantly enhance sound insulation, waterproof sealing, and security performance. Ideal for high-end residential buildings, commercial structures, and regions with challenging climates, thermally broken aluminum doors and windows represent an optimal choice for modern energy-efficient solutions.