Aluminium exterior door L371 made to order

Aluminium exterior door L371 with 92 mm system depth and exceptional thermal performance Ud 0.85 W/m²K. Quadruple glazing in Satinato glass delivers energy efficiency and contemporary elegance for premium entrances.

The L371 exterior door represents the reference solution for premium residential and commercial entrances demanding high energy standards. Manufactured from aluminium profiles with 3 mm wall thickness, the system integrates a 34 mm articulated thermal break that optimizes both insulation performance and long-term durability. The total profile depth of 92 mm ensures structural rigidity and a distinct architectural presence.

The quadruple glazing system—comprised of 44.1 mm triplex, a 5 mm Satinato interlayer, and a further 44.1 mm triplex sheet—creates a refined optical barrier and superior acoustic isolation. Triple EPDM gaskets guarantee perfect sealing performance across seasons and weather cycles. The 92 mm leaf thickness and 80 mm frame depth provide stability and smooth operation, even under sustained wind pressure. ift Rosenheim certification for the thermal coefficient Ud 0.85 W/m²K confirms exceptional energy efficiency, directly reducing heating and cooling costs.

Mechanical and chemical resistance derives from anodized aluminium surface treatment, protecting against corrosion and UV degradation over decades. The system accommodates standard configurations up to 1100×2300 mm for dual-leaf doors or up to 1200×2500 mm for single leaves, adapting to any proportional entrance requirement. Opening systems—swing, sliding, or combined—allow design flexibility and optimized user flow patterns.

L371 integrates seamlessly into contemporary architecture where clean lines and energy performance are paramount. The Satinato glazing finish delivers controlled luminosity and visual privacy, ideal for south-facing facades or high-solar-gain climates. The door complements premium timber and neutral-toned flooring, creating an elegant transition between interior living and exterior environment.

Recommended for modern villas, commercial headquarters with ecological standards, and high-end renovations. Professional installation and minimal annual maintenance ensure silent operation and flawless appearance for decades.

The L371 door achieves a thermal coefficient Ud of 0.85 W/m²K, certified by ift Rosenheim testing, thanks to its 34 mm articulated thermal break and quadruple glazing with Satinato glass. This performance places it in the premium category for main entrances, with minimal heat loss and energy efficiency comparable to low-emissivity systems.

The L371 door features an aluminium core with a 92 mm profile and 3 mm aluminium wall thickness, balanced by an articulated thermal break that ensures structural rigidity and corrosion protection. The full 92 mm depth system delivers optimal mechanical stability for main entrances exposed to climate variation, with treated aluminium resistant to salt spray and humid conditions.

The L371 door is equipped with 3 EPDM multi-point gaskets that provide progressive sealing around the entire frame and door leaf perimeter. These premium-grade gaskets, UV-resistant and thermally stable, ensure efficient protection against rainfall infiltration and warm air loss during windy periods.

The L371 door is available in standard dimensions (up to 1100×2300 mm) and as a single-leaf variant with custom dimensions up to 1200×2500 mm. This flexibility allows precise adaptation to existing frames or projects with specific architectural requirements, with made-to-order production according to your specifications.

The L371 door features quadruple glazing: 44.1 triplex / 5mm Satinato glass / 44.1 triplex, a configuration combining clarity with interior privacy and significant acoustic insulation. The triplex and multiple glass layers reduce ambient noise, while Satinato provides a discrete design and privacy protection.

The L371 door with its 92 mm system depth and 80 mm frame depth installs in standard typology masonry frames in modern constructions and renovations. Installation requires precise frame leveling and mechanical fixation with screws or wall anchoring, adaptable to different wall thicknesses; we recommend confirming compatibility with your existing frame before ordering.