Aluminium exterior door L548 made to order

Aluminium exterior door L548 with articulated thermal break and quadruple glazing for superior insulation. High-performance profile engineered for residential and commercial applications.

The L548 aluminium exterior door is a high-performance solution designed for modern residences and commercial spaces requiring durability and energy efficiency. The profile series positions itself in the premium segment through its integrated 34 mm articulated thermal break system, which effectively interrupts heat flow and maintains interior comfort across all climate conditions.

The 3 mm aluminium profile is combined with a total system depth of 92 mm, ensuring structural rigidity and long-term stability. The 80 mm frame and door leaf form a monolithic construction that resists mechanical stress and external weather exposure. Sealing is achieved through three high-density EPDM gaskets, providing protection against water infiltration and air leakage.

The quadruple glazing (44.1 triplex / 5 mm Satinato / 44.1 triplex) delivers exceptional thermal insulation while providing control over natural light and privacy. The thermal coefficient Ud of 0.85 W/m²K, certified by ift Rosenheim, places this door in the superior energy efficiency class, reducing the demand for artificial heating and cooling. The laminated glass construction ensures impact safety and absorbs external noise.

Offering standard dimensions up to 1100 × 2300 mm and customization options in single-leaf format up to 1200 × 2500 mm, L548 adapts to any architectural project. The profile system accommodates various opening mechanisms—hinged, sliding, or pivot—depending on space requirements and desired traffic flow.

This exterior door is recommended for main entrances of upper-middle-class residences, commercial facades, and institutional buildings, particularly where thermal and visual insulation are priorities. Compatibility with various flooring finishes and window frames ensures complete aesthetic integration into residential and corporate projects.

The L548 door achieves a thermal coefficient Ud of 0.85 W/m²K, certified by ift Rosenheim, placing it in the high-performance category for residential and commercial exterior doors. This result is achieved through an articulated thermal break system of 34 mm and quadruple glazing (44.1 triplex / 5mm satinato / 44.1 triplex), ensuring minimal heat loss and superior acoustic comfort.

The L548 is an extruded aluminum exterior door with a 3 mm thickness, featuring an integral structure of 92 mm total depth. The system combines an 80 mm frame with a 92 mm leaf, equipped with an articulated thermal insulation system to prevent cold transfer. The quadruple glazing provides structural rigidity and exceptional acoustic insulation, while triple-point EPDM sealing ensures durable protection against water and wind infiltration.

The L548 door is available in standard dimensions up to 1100×2300 mm. For a single-leaf door, the maximum dimension can reach 1200×2500 mm, offering flexibility for spaces with specific requirements. We recommend consulting with our showroom team to discuss customization options and verify compatibility with your existing frame and masonry, as well as to benefit from expert sizing guidance.

The L548 door with a 92 mm system depth is installed into existing frames with compatible depth or into prepared masonry. The 80 mm frame is anchored with special anchors and mortar, and sealing is completed with sealant and polyurethane insulation to guarantee complete thermal and acoustic protection. We recommend installation by specialized teams who will verify level, planarity, and water drainage for a professional and lasting result.

The L548 is equipped with a multi-point sealing system using three EPDM gaskets, providing protection on three defensive lines against water, wind, and air infiltration. The 3 mm aluminum structure and deep 80 mm frame ensure superior mechanical rigidity and stability. While detailed security certification information is not specified in the available documentation, I recommend consulting with our showroom specialist who can detail the anti-intrusion protection level and compatibility with advanced hardware systems.

The L548 aluminum requires minimal maintenance — regular cleaning with water and neutral detergent to maintain the finish, and EPDM gaskets should be checked periodically and treated with silicone lubricant to preserve elasticity. Avoid abrasives and harsh chemicals that could damage the profiles and paint. In areas with high humidity or intense wind exposure, annual inspection of sealing and sealant is essential to prevent water infiltration and maintain long-term thermal performance.