Aluminium exterior door L250 made to order

Aluminium exterior door with 92 mm profile and superior thermal insulation Ud 0.85 W/m²K. Robust construction with quadruple glazing and articulated thermal break for maximum performance in temperate climates.

The L250 aluminium door represents a high-performance exterior access solution designed for residential and commercial spaces requiring durability and precise thermal control. The 92 mm aluminium profile ensures a stackable and elegant structure, integrating a 34 mm articulated thermal break that minimizes heat transfer between interior and exterior, optimal for regions with significant temperature variations.

The primary material is aluminium with a thickness of 3 mm, precision-engineered to withstand mechanical stress and aggressive climatic conditions. The total system depth (92 mm) and leaf thickness (92 mm) are calculated to accommodate an intelligent glazing system: quadruple windows featuring a 44.1 triplex / 5 mm Satinato glass / 44.1 triplex configuration, offering both optical privacy and exceptional acoustic performance. The EPDM gasket sealing (three layers) eliminates water and air infiltration, protecting interior finishes from degradation and corrosive agents.

Certified thermal performance (Ud 0.85 W/m²K, per ift Rosenheim standards) positions it in the energy-efficient solutions category, reducing cooling and heating costs across seasons. Acoustic insulation results from the combination of multiple glazing layers and rigid structural design — ideal for urban locations or noise-exposed spaces. Opening capacity ranges from standard dimensions up to 1100×2300 mm, with the option of extended single-leaf configurations up to 1200×2500 mm, offering flexibility for diverse architectural applications.

Color customization and surface treatments can be coordinated according to design requirements and UV protection needs — raw aluminium can be finished with powder coating from RAL palettes or architectural anodizing. Opening systems (hinged, pivot, sliding) are configurable based on available space and location usage patterns.

This door is recommended for main entrances of modern residences, commercial accesses with moderate traffic, and interior-exterior transition spaces in buildings with stringent insulation requirements. It complements contemporary and minimalist styles, pairing beautifully with polished concrete, solid wood, or premium tile flooring.

The Ud coefficient of 0.85 W/m²K (certified by ift Rosenheim) demonstrates superior thermal insulation — the lower the value, the less heat escapes your home. The articulated 34 mm thermal break combined with quadruple glazing significantly reduces heat transmission, translating into lower heating costs and consistent indoor comfort throughout the year.

The door features a layered construction with a total system depth of 92 mm: the frame measures 80 mm and the leaf is 92 mm thick with 3 mm aluminium walls. This substantial depth accommodates the articulated 34 mm thermal break and securely houses the quadruple glazing, ensuring structural rigidity and optimal thermal-acoustic performance.

The glazing is quadruple: 44.1 triplex / 5 mm Satinato / 44.1 triplex — a four-layer solution combining laminated safety (44.1 triplex) with textured glass interlayer (Satinato), ensuring both safety during breakage and significant sound dampening. This configuration is ideal for high-traffic areas or homes with stringent acoustic requirements.

For standard opening configurations, maximum dimensions are 1100×2300 mm. If you need a single leaf with larger spans, you can go up to 1200×2500 mm. Customize the door to your exact measurements by contacting our team — we'll adapt both the frame and thermal insulation system without compromising performance.

Installation requires an aluminium frame (toc) with 80 mm depth, compatible with standard masonry (brick, concrete). Hardware and hidden hinges come pre-mounted. Our team recommends professional installation with multi-point sealing (3 EPDM gaskets) to guarantee thermal performance and protection against water and air infiltration.

Aluminium requires no painting or periodic treatment — the industrial finish is stable and corrosion-resistant. Clean the door regularly with water and mild soap, avoid harsh abrasives. Annually inspect EPDM seals and hidden hinges, clear debris from edges. In harsh climates (coastal areas, industrial pollution), a maintenance review every 3–5 years keeps multi-point sealing performance optimal.