Aluminium exterior door L543-1 made to order

Aluminium exterior door with advanced thermal performance (Ud 0.85 W/m²K), 92 mm system depth, and quadruple glazing for maximum energy efficiency and weather protection.

The L543-1 is a premium aluminium exterior door engineered for high-end residential and commercial projects demanding superior thermal performance and architectural refinement. The extruded aluminium frame, 3 mm thick, provides structural rigidity and longevity, with a 92 mm total system depth that positions this door in the ultra-efficient category.

Construction excellence defines every component. The articulated thermal break spans 34 mm, effectively interrupting cold and heat transfer and reducing energy loss. Glazing employs a quadruple configuration: 44.1 mm triplex outer pane, 5 mm Satinato middle layer, and 44.1 mm triplex inner pane—delivering outstanding thermal insulation, acoustic control, and protection from direct exposure. Triple EPDM gasket sealing ensures weathertightness and moisture resistance across extended service life, with 80 mm frame depth and 92 mm leaf thickness working in concert to guarantee minimal air infiltration.

Certified thermal performance (Ud = 0.85 W/m²K, tested by ift Rosenheim) positions this door in the A+ energy efficiency class, directly reducing annual heating and cooling consumption. The combined system depth and insulation strategy meet the stringent demands of modern building codes and passive-house standards, making it ideal for heritage renovations and new construction alike.

Maximum dimensions accommodate standard openings up to 1100×2300 mm and single-leaf installations to 1200×2500 mm, suiting diverse floor plans without compromise. Opening systems and hardware are fully customisable to project-specific requirements, whether outward-swinging or alternative configurations.

Design integration is seamless with contemporary, minimalist, and transitional interiors. The symmetrical aluminium profile, refined proportions, and precision engineering make this door a statement of solidity and visual clarity, enhancing spaces with natural stone, marble, or solid timber flooring.

The Ud value of 0.85 W/m²K certified by ift Rosenheim puts this door in the premium thermal insulation class. This means minimal heat loss, lower energy consumption, and superior comfort during winter — comparable to modern passive house standards.

The door features a 3 mm aluminium profile with an articulated 34 mm thermal break system, and a total leaf thickness of 92 mm. This combination of durable aluminium and integrated insulation resists extreme climate variations, corrosion, and degradation — ideal for Atlantic or Mediterranean climates.

The door features quadruple glazing (44.1 triplex + 5mm Satinato + 44.1 triplex), a premium configuration that delivers superior acoustic insulation, noise reduction, and thermal protection. The centre Satinato glass also provides elegant partial opacity.

The door features 3 EPDM gaskets around the entire perimeter (multi-point sealing system) ensuring absolute, long-lasting waterproofing and airtightness. EPDM resists thermal fluctuations and UV exposure without degradation, and triple configuration provides redundancy — air and water leaks are virtually eliminated.

Standard sizes are 1100×2300 mm (two-leaf configuration), and single-leaf doors can reach up to 1200×2500 mm. All dimensions are customizable on demand — our showroom team can help you define the optimal solution for your opening, regardless of architectural constraints.

The door has a total depth of 92 mm and frame depth of 80 mm, compatible with standard masonry, external thermal insulation systems (ETS), and modern construction. Installation is performed on dedicated frames or directly into the opening with progressive fastening elements, and kulttur.ro specialists provide full support for sizing and on-site consultation.