Aluminium exterior door L335 made to order

L335 aluminium exterior door with state-of-the-art thermal insulation (Ud 0.85 W/m²K). Robust profile featuring quadruple glazing for maximum performance and year-round comfort.

The L335 exterior door represents the premium solution for openings with high demands on thermal performance and durability. Engineered in structural aluminium, the L335 series combines contemporary elegance with the reliability of deep-profile construction, positioning itself as a confident choice for high-calibre residential and commercial projects.

The system's foundation rests on a 92 mm total thickness profile, with an 80 mm frame that ensures exceptional rigidity. The 3 mm aluminium profile is reinforced with an articulated 34 mm thermal break — a high-tech solution that effectively interrupts heat transfer. Sealing is guaranteed by three industrial-grade EPDM gaskets, engineered for extreme climatic conditions.

Thermal performance is the signature of this model: a Ud coefficient of 0.85 W/m²K (ift Rosenheim certified) places the door among the most efficient in the aluminium segment. The quadruple glazing — composed of 44.1 triplex + 5 mm Satinato + 44.1 triplex — delivers not only superior thermal insulation but also acoustic protection and controlled natural light access. This layered construction guarantees resistance to severe weather and long-term durability.

L335 accommodates personalised configurations: standard dimensions up to 1100 × 2300 mm, whilst single-leaf variants can reach 1200 × 2500 mm. Opening systems — whether traditional hinged, sliding or pivot — adapt fully to spatial requirements and user preferences.

This is the door for contemporary homes, premium offices, hotels and commercial spaces where insulation demands, visual presence and structural resilience are non-negotiable. Access to the exterior, whether direct landscape connection or functional circulation, becomes an investment in comfort and property value for decades.

The thermal coefficient of 0.85 W/m²K (certified by ift Rosenheim) places this door in the superior insulation class. The thermal break of 34 mm articulated polyamide and the quadruple 44.1 triplex glazing system minimize heat loss, maintaining interior comfort throughout the year.

The door's total thickness of 92 mm ensures superior structural rigidity and acoustic performance. The aluminum profile (3 mm thickness) is reinforced with a robust inner core, while the 80 mm frame depth allows efficient multi-point sealing and stable installation in any masonry type.

The L335 door is equipped with 3 high-performance EPDM gaskets that prevent water and air infiltration. The multi-point sealing system, combined with the 92 mm profile and articulated thermal break, creates a permanent barrier against wind, rain, and dust. ift Rosenheim certification guarantees long-term durability and sealing integrity.

Standard maximum dimensions are 1100 × 2300 mm, with single-leaf options reaching up to 1200 × 2500 mm. Each L335 door is manufactured to order according to your exact opening measurements, ensuring perfect fit and optimal sealing regardless of masonry specifications.

The quadruple 44.1 triplex glazing system (structure: 44.1 triplex / 5mm Satinato / 44.1 Triplex) is certified for superior noise insulation and resistance to external sound. The laminated glass layers and 5 mm satinized airspace absorb and reduce traffic noise and vibrations, ensuring a quiet interior environment.

The aluminum profile requires regular cleaning with water and mild soap to maintain appearance and functionality. EPDM gaskets should be inspected annually and, if needed, treated with a neutral preservative. The L335 door is available in painted finishes (RAL color palette) and natural veneers on order, customizable to your aesthetic preferences.