Why choose triple-glazed French doors for your build?

In energy-efficient home design, every component plays a crucial role in achieving optimal performance. Among these components, doors hold a significant position. When it comes to marrying style with sustainability, French doors emerge as a standout choice for modern homeowners. 

Here, we delve into the myriad reasons why French doors, particularly triple glazed ones, are the ideal selection for your energy-efficient build.

Defining french doors: Aesthetic appeal and functional excellence

French doors are renowned for their timeless elegance and ability to seamlessly blend indoor and outdoor spaces. Their classic design, characterised by two glass panels extending from top to bottom, creates a sense of openness and connectivity with the surrounding environment. This aesthetic appeal not only enhances the overall look of a home but also maximises the ingress of natural light, reducing the need for artificial lighting during daylight hours. Additionally, French doors facilitate seamless and harmonious indoor-outdoor living.

Energy efficiency benefits of triple-glazed french doors

One of the most significant advantages of French doors lies in their potential to contribute to the energy efficiency of a home, especially when equipped with triple glazing. Triple-glazed French doors offer enhanced insulation properties, effectively reducing heat transfer between indoor and outdoor environments. This superior thermal performance helps maintain consistent indoor temperatures, thereby minimising reliance on heating and cooling systems. As a result, homeowners can enjoy reduced energy consumption and lower utility bills while simultaneously reducing their carbon footprint.

Material options: exploring timber, aluminium, and uPVC

When it comes to material selection for triple-glazed French doors, three primary options dominate the market: timber, aluminium, and uPVC. Each material offers unique advantages and considerations in terms of energy efficiency, durability, and aesthetics.

Triple-glazed timber French doors

• Pros: Triple-glazed timber French doors offer a blend of traditional charm, energy efficiency, and – if sourced responsibly – environmental sustainability. All 21 Degrees doors and windows are made from FSC®certified Redwood timber. Modern timber finishes are now so durable that, for most applications, we recommend them over aluminium cladding or uPVC. 
• Cons: Compared to alternative materials like uPVC or aluminium, timber French doors may have a higher upfront cost. However, many homeowners view this as an investment in the long-term value and aesthetic appeal of their home.

Triple-glazed aluminium French doors

• Pros: Known for their strength and durability, aluminium French doors provide excellent structural integrity and resistance to corrosion. They offer sleek sightlines and can accommodate large glass panels, maximising views and natural light ingress.
• Cons: Aluminium is a highly conductive material, which can result in thermal bridging if not properly insulated. Without thermal breaks, aluminium doors may compromise the overall energy efficiency of a home.

Triple-glazed uPVC French doors

• Pros: uPVC French doors are prized for their low cost, speed of manufacture, and low maintenance requirements. Additionally, uPVC doors are resistant to rot and corrosion, ensuring long-term durability.
• Cons: uPVC doors may not match the structural strength of aluminium counterparts. Their lifespan is relatively short, and as they can’t be refreshed, they have to be replaced – which has a negative environmental impact. Some homeowners may also have aesthetic preferences that lean towards other materials.

Cost of triple-glazed French doors

How much triple-glazed French doors cost can vary depending on several factors, including materials, size, design, customisation options (such as colours, hardware, and glazing), and installation. Generally, timber and aluminium French doors tend to be more expensive upfront due to the higher cost of materials and fabrication. However, they may offer long-term savings through their durability and low-maintenance requirements. On the other hand, uPVC French doors often come at a more affordable price point, making them an attractive option for budget-conscious homeowners.

Practical advice for selection and installation

When selecting triple-glazed French doors for specific climate conditions and architectural requirements, it's essential to consider factors such as insulation values, weather resistance, and security features. Our French doors have a U value from 0.79 W/m2K, making them suited to low and ultra-low energy projects. Opting for doors with high-quality seals and multi-point locking systems can enhance both energy efficiency and home security. Additionally, consulting with a reputable supplier or installer can provide valuable guidance on choosing the right doors tailored to your needs and preferences. 

French doors offer a perfect fusion of style, functionality, and sustainability. With their timeless appeal, enhanced energy efficiency, and versatile design options, triple-glazed French doors stand out as a premium choice – especially when incorporated into wider considerations such as triple-glazed windows and mechanical ventilation with heat recovery (MVHR) systems. By understanding the nuances of different materials, cost factors, and practical aspects, you can select the perfect French doors to elevate your living space while minimising your environmental impact.

At 21 Degrees, we're committed to providing innovative solutions for sustainable living, including a wide range of triple-glazed French doors tailored to your needs. Discover our design services to see how these doors can work in harmony with our MVHR systems and triple-glazed windows to create life-changing homes, or request a quote.