Aluminium exterior door L736 made to order

High-performance aluminium entry door with Ud 0.85 W/m²K thermal coefficient and quadruple glazing. Robust 92 mm profile designed for contemporary residential projects demanding superior insulation and durability.

Model L736 is a premium aluminium exterior door engineered to deliver exceptional thermal performance for residential applications. With a thermal coefficient of Ud 0.85 W/m²K, it ranks among the highest-performing entry solutions, ensuring year-round climate comfort and energy efficiency. The robust 92 mm profile creates a compact yet durable thermal barrier between interior and exterior environments.

The system construction pairs 3 mm aluminium with an articulated 34 mm thermal break that completely eliminates thermal bridging and prevents heat loss through the frame. The quadruple glazing consists of triple-laminated units (44.1 mm / 5 mm satin glass / 44.1 mm), a configuration that maximizes both acoustic insulation and UV protection. Triple EPDM gaskets ensure weathertight sealing across varying climate conditions, from intense cold to peak solar exposure.

Thermal performance is certified according to ift Rosenheim standards, guaranteeing minimal energy loss throughout each heating season. The mechanical strength of the aluminium structure withstands considerable wind pressure and maintains geometric integrity for decades. The system accommodates dimensions up to 1,200 × 2,500 mm as a single leaf, providing design flexibility and optimal use of architectural openings.

The discreet design, featuring an 80 mm frame profile, integrates seamlessly into contemporary facades regardless of substrate—concrete, masonry, or timber. The system works with any compatible window or secondary door format, facilitating both aesthetic and functional coordination across the entire entrance zone.

This is the choice for owners investing in long-term comfort, reduced heating bills, and a door that will perform without compromise for decades. Standard sizes up to 1,100 × 2,300 mm cover most residential applications, while glazing configurations can be adapted to local safety and acoustic requirements.

The thermal coefficient Ud of 0.85 W/m²K (certified by ift Rosenheim) places this door in the top tier of energy performance—significantly better than standard European requirements. Insulation is delivered through the articulated 34 mm thermal break and quadruple glazing (44.1 triplex + 5mm satin glass + 44.1 triplex), which eliminates thermal bridges and cuts heat loss. With central heating, you can expect annual energy savings of 10–15%, with payback within 5–8 years.

The 92 mm total system depth (with 80 mm frame and 92 mm leaf) provides sufficient internal space for the 34 mm articulated thermal break and three multi-point EPDM gaskets—impossible in thinner profiles below 70 mm. This robustness increases structural rigidity, reduces outside vibration and noise, and enables far more effective sealing along the entire opening. Thicker profile = less risk of warping over time, plus superior thermal and acoustic performance.

Standard dimensions are 1100×2300 mm, but the system also supports custom configurations up to 1200×2500 mm for a single leaf, with higher structural loads. For openings wider than 1200 mm, the system can be adapted with double leaves or reinforced profiles, but this requires technical consultation with the manufacturer's specialist. Each custom configuration is individually tested to guarantee compliance with certified Ud performance and multi-point sealing.

The door is fitted with high-grade hardware and three multi-point sealed EPDM gaskets, providing a solid foundation for retention and structural integrity. While product specs do not detail RC class ratings (RC2/RC3), the 3 mm aluminium thickness and robust 92 mm profile offer significant mechanical resistance to impact and torsional forces. For applications with enhanced security requirements, we recommend consulting with our technical specialist regarding specific RC certifications and potential reinforcement solutions.

The 80 mm frame is designed for standard installation in masonry with openings of approximately 80–90 mm. Installation is done using silicone sealant and mechanical anchors or cement mortar, following local building practices. Compatibility with existing frames depends on their thickness and profile; if frames are too thin (under 70 mm) or have different geometry, adaptation or replacement may be needed. We recommend an on-site technical inspection and consultation with your installer to ensure a proper, airtight installation.

The 3 mm aluminium is anodized or painted for corrosion and UV protection, offering durability of 20+ years under normal conditions. Maintenance is limited to periodic cleaning with water and neutral detergent, avoiding abrasives or harsh solvents. EPDM gaskets should be checked annually and lightly lubricated to maintain sealing; if glass cracks or gasket deterioration occurs, replacement is relatively straightforward. The painted or anodized finish holds up better in urban settings with solar protection than in coastal areas or zones with high industrial pollution.