Aluminium exterior door L380 made to order

Premium aluminium entrance door with 92 mm frame depth and exceptional thermal performance (Ud = 0.85 W/m²K). Features quadruple glazing and triple EPDM sealing system.

The L380 is a swing-style entrance door engineered for discerning residents who demand both thermal integrity and clean contemporary design. Built to stringent European standards, it suits modern residential projects and buildings where energy efficiency and long-term durability are non-negotiable. The anodised aluminium profile, 3 mm thick, delivers structural rigidity and weatherproof longevity.

The system achieves its 92 mm total depth through a sophisticated thermally-broken profile: a 34 mm articulated thermal break isolates the exterior frame from interior warmth transfer. The door leaf itself measures 92 mm thickness, providing adequate mass and dimensional stability. Glazing is quadruple configuration — 44.1 triplex outer pane, 5 mm satinato centre, and 44.1 triplex inner pane — balancing acoustic dampening with visual privacy while the satinato finish softens glare and maintains sophisticated appearance. Triple EPDM gasket sealing ensures protection against water and air infiltration across the frame perimeter.

Thermal performance is certified by ift Rosenheim at Ud = 0.85 W/m²K, placing this door in the premium-efficiency bracket. This rating supports year-round interior comfort and measurable energy savings, particularly in transitional climates. Standard dimensions accommodate openings to 1100×2300 mm; single-leaf variants extend to 1200×2500 mm for generous portal widths and special architectural circumstances.

The design language is universally contemporary—equally at home in minimalist new builds and sympathetic period renovations seeking responsible thermal upgrade. Surface finish options permit integration into distinct colour schemes without compromise. Pairs well with natural stone flooring, polished concrete, or engineered parquet at the threshold.

Ideal for primary entrances, sheltered terraces, and secondary accesses where thermal performance and visual restraint matter equally. Installation demands careful perimeter sealing and structural wall support. Verify warranty scope, spare parts availability, and local technical support before commitment.

The Ud coefficient of 0.85 W/m²K (certified by ift Rosenheim) indicates premium-class thermal insulation performance. This is achieved through the 92 mm profile depth, articulated thermal break of 34 mm, and quadruple glazing system, which significantly reduces heat loss and lowers heating costs. Simply put, this door minimizes thermal transfer compared to conventional entrance doors.

The glazing system is quadruple (44.1 triplex / 5mm Satinato / 5mm Air / 44.1 triplex) — four panes with satin finish for visual privacy and solar protection. The multiple air chambers create efficient thermal and acoustic barriers, reducing both heat loss and external noise. The satined finish diffuses light gently while maintaining visibility.

Standard maximum dimensions are 1100 × 2300 mm, with single-leaf doors reaching up to 1200 × 2500 mm. The 92 mm profile depth is measured from the outer face of the frame to the inner face of the leaf, including the thermal break and frame structure. This generous depth ensures secure installation in thick masonry and accommodates advanced security systems. We customize dimensions precisely to your wall thickness and opening requirements.

The 3-level EPDM sealing system is arranged on the perimeter of the door at three points: on the leaf, within the profile depth, and on the inner frame. These create successive barriers that prevent water and air infiltration, even in extreme wind and horizontal rain conditions. EPDM gaskets are durable, UV-resistant, and maintain elasticity over years, ensuring consistent door performance and weather protection.

The door is installed within an aluminium frame with minimum depth of 80 mm, which is fixed directly into masonry or on a threshold according to European standards. The system is compatible with standard aluminium frames and accommodates varying wall thicknesses using adaptation elements. Sealing is done with polyurethane foam around the entire perimeter, followed by external acrylic sealant. Professional certified installation is essential to ensure perfect alignment and optimal mechanical operation.

The anodised aluminium profile requires no periodic repainting, only regular cleaning with mild detergent and water to remove dirt and mineral deposits. EPDM gaskets should be inspected annually and treated with a conservation product to maintain elasticity and prevent cracking. Glass is cleaned with standard window cleaner; avoid abrasive materials. If superficial corrosion appears, it can be removed with fine-grit abrasive and protected with a protective lacquer. Annual preventive maintenance ensures flawless operation for 20-30 years.