Aluminium exterior door L740 made to order

Aluminium entrance door with L740 profile and quadruple glazing, certified for superior thermal insulation (Ud 0.85 W/m²K). System depth 92 mm with articulated thermal break for maximum energy performance.

The L740 exterior door represents a high-performance solution for main entrances requiring superior thermal insulation and resistance to extreme weather conditions. Built from structural aluminium with a 80 mm frame profile and 92 mm leaf thickness, it combines rigidity with premier-class energy efficiency.

Materials and finishes have been carefully selected for long-term durability. The 3 mm aluminium profile is equipped with a 34 mm articulated thermal break—a technology that significantly reduces heat transfer through the thermal bridge. Triple-layer sealing with EPDM gaskets provides complete protection against water and air infiltration, while the integrated drainage system safeguards internal channels. The quadruple glazing (44.1 triplex / 5 mm Satinato glass / 44.1 triplex) delivers exceptional acoustic and thermal insulation, certified by ift Rosenheim.

The certified thermal performance of Ud = 0.85 W/m²K places this door among the most efficient on the market, significantly reducing heat loss and contributing to consistent interior comfort. The 92 mm total system depth accommodates standard wall construction and ensures maximum structural rigidity, even at large dimensions. ift certification and superior thermal performance ensure compliance with current European energy efficiency standards.

The L740 aluminium design offers considerable adaptability to various shape and dimension requirements. Standard dimensions up to 1100×2300 mm provide flexibility for most residential and light commercial projects. The single-leaf version reaches 1200×2500 mm, offering generous proportions for high-ceiling spaces. The system is compatible with varied opening mechanisms—hinged, sliding, or pivot—allowing customisation to specific functional needs.

This is recommended for main entrances to villas, office buildings, and commercial spaces with high insulation standards. The combination of aluminium structural frame and Satinato glazing permits private light control without compromising transparency. Compatibility with security systems and generous sizing make it equally suitable for projects with elevated security concerns. The natural aluminium finish supports custom colour treatments, enabling integration into any architectural design concept.

The Ud value of 0.85 W/m²K indicates excellent thermal insulation, certified by the ift Rosenheim laboratory. This means minimal heat loss through the door, significantly reducing heating costs and ensuring consistent interior comfort. The L740 profile with dual walls and articulated thermal break of 34 mm deliver this superior performance.

Quadruple glazing (44.1 triplex / 5mm Satinato / 44.1 Triplex) combines thick laminated glass layers with air spaces, creating an effective barrier against external noise and heat loss. The thick laminated layers absorb sound vibrations, while the internal Satinato film provides additional protection. This configuration is ideal for urban areas or near main roads.

Standard dimensions for this door are maximum 1100×2300 mm for conventional openings, with the option to reach 1200×2500 mm for a single leaf. Any size outside these limits can be made to order, tailored exactly to your opening and spatial requirements. We recommend consulting with our specialist to verify compatibility with existing masonry and frames.

The door is mounted on the frame (threshold and vertical jamb), which must have an opening compatible with the profile dimensions (system depth 92 mm). Installation requires precise leveling and anchoring to the masonry. Compatibility with existing frames depends on their dimensions and condition — old frames may need partial replacement. Our installation team verifies on-site compatibility and recommends the optimal solution.

The aluminium door requires minimal maintenance — clean with neutral soap and water, then wipe with a soft cloth. Avoid harsh chemicals that may damage the finish. The thermal break and multi-point sealing (3 EPDM gaskets) require annual checks to ensure optimal drainage and insulation. In areas with harsh conditions (salt air, pollutants), preventive aluminium treatment significantly extends lifespan.

The L740 door is designed with robust 3 mm aluminium profile and quadruple glazing that provide high mechanical resistance. Multi-point sealing with 3 EPDM gaskets and the locking system are critical security components. For official RC2 or RC3 (anti-burglary) certification, we recommend consulting with our specialist — certification depends on specific hardware (hidden hinges, locks) and professional installation. The profile depth (92 mm) and structural rigidity provide a solid foundation for advanced security systems.