Aluminium exterior door L125 made to order

Aluminium exterior door with high-performance thermal insulation and ift Rosenheim certification. Quadruple glazing system with triple-sealed gaskets for superior weather protection and energy efficiency.

The L125 aluminium exterior door is engineered for high-performance residential and commercial applications where certified thermal efficiency and durability are non-negotiable. The model carries ift Rosenheim certification, validating its thermal performance under demanding climate conditions and real-world usage scenarios. Aesthetically, it embodies contemporary minimalism with substantial engineering beneath, making it equally at home in new-build projects and discerning renovations seeking quantifiable energy gains.

The 3 mm aluminium profile is reinforced with an articulated 34 mm thermal break that interrupts cold bridging and delivers a U-value of 0.85 W/m²K — benchmark performance for premium exterior solutions. The quadruple glazing system comprises three 44.1 mm triplex panes sandwiching a 5 mm Satinato intermediate layer, creating a multi-layered barrier against heat loss and external noise. Total system depth reaches 92 mm, with the frame profile measuring 80 mm — proportions that ensure structural rigidity and dimensional stability across thermal cycles and seasonal moisture shifts.

Acoustic and thermal sealing relies on three precision-fitted EPDM gaskets that prevent air and water infiltration while dampening outside noise penetration. The door system demonstrates reliable long-term behaviour in temperate and Mediterranean climates, with resistance to UV degradation and salt spray exposure where relevant. Standard configurations accommodate openings up to 1100×2300 mm, whilst single-leaf versions extend to 1200×2500 mm, providing design flexibility across varied project scales and building geometries.

Customization centres on surface treatment selection and glazing configuration options, allowing integration with existing architectural vocabularies and performance requirements. The door suits both traditional swing operation and contemporary pivot or sliding systems when specified, with security hardware and access control retrofitting available. Aluminium finish options can be coordinated with façade materials and interior joinery to create seamless visual continuity.

Ideal for principal entrances, transition spaces, and south or east-facing elevations, the L125 represents professional specification for clients who value certified performance over marketing claims. The investment translates into measurable heating cost reduction, enhanced acoustic comfort, and property value retention — returns that extend far beyond the initial installation cost.

The door achieves a Ud coefficient of 0.85 W/m²K, certified by ift Rosenheim, thanks to its articulated thermal break of 34 mm and quadruple glazing system (44.1 triplex / 5mm satin / 44.1 triplex). This positions it in the high-performance category, suitable for buildings with demanding energy requirements and variable climate conditions.

The door is manufactured from aluminium with 3 mm thickness, featuring a system profile with total depth of 92 mm (frame: 80 mm, leaf: 92 mm). This compact dimensioning ensures clean proportions at standard openings and structural stability, with integral thermal insulation through the 34 mm articulated thermal break.

The door uses 3 EPDM gaskets (ethylene-propylene-diene-monomer) arranged along the full frame perimeter, ensuring efficient multi-point sealing against wind, dust and water infiltration. The gasket system is durable and maintains performance over time, even in extreme weather conditions.

The system accommodates standard dimensions up to 1100×2300 mm and, for single-leaf variants, up to 1200×2500 mm. Beyond these limits, we recommend contacting our sales team for custom solutions that can be tailored to your project's specific requirements.

The door is installed by securing the frame into the masonry opening using anchors or screws in plaster, directly onto concrete or brick. The 80 mm frame profile is compatible with standard masonry (20-30 cm thickness). After installation, the reveal is sealed with polyurethane foam and finished with acrylic sealant for maximum protection against infiltration.

The aluminium door requires regular cleaning with water and neutral soap, followed by drying with soft material. EPDM gaskets should be checked annually and, if needed, lightly lubricated with a specialised gasket product. The anodised or painted aluminium finish remains stable over time; in areas with severe exposure (sea salt, industrial pollution), we recommend more frequent cleaning to maintain appearance and performance.