Aluminium exterior door L336 made to order

Aluminium exterior door with advanced profile and superior thermal insulation (Ud 0.85 W/m²K). Quadruple-glazed system with triple EPDM sealing for maximum comfort and energy efficiency.

The L336 exterior door positions itself as a premium solution in the aluminium door segment with advanced thermal performance. The 92 mm structural profile combines rigidity with visual refinement, suited for both contemporary projects and high-specification renovations. The system accommodates standard and custom openings, with flexibility for single and double-leaf configurations.

Material construction integrates precision: 3 mm aluminium with an articulated 34 mm thermal break that redistributes thermal load and maintains stable interior temperature. The triple EPDM gasket ensures perfect adhesion against wind and moisture infiltration, while the quadruple glazing (44.1 triplex / satin / 44.1 triplex) balances transparency with optimized natural light diffusion and acoustic protection.

Thermal performance certified at Ud 0.85 W/m²K per ift Rosenheim testing places this door in the superior energy isolation category, comparable to optimized dual-glazed solutions. Triple sealing reduces air leakage, and the partial vacuum layer in inter-pane spaces enhances acoustic comfort indoors. Structural resistance and durability are guaranteed through premium aluminium alloys, with surface treatment providing corrosion protection in both urban and marine environments.

The profile allows varied finishes—standard anodizing, architectural paint, or wood-effect surfaces—without compromising thermal integrity. Maximum available dimensions (1200×2500 mm single leaf, up to 1100×2300 mm for double openings) provide design flexibility. The hinged opening system integrates with modern soft-close mechanisms and concealed fittings for a clean aesthetic.

Recommended for primary entrances in modern residential properties, commercial spaces, extensions with large glass areas, and façades with substantial glazing components. Harmonizes naturally with natural stone flooring, polished concrete, or engineered parquet in neutral tones. Compatibility with radiant floor heating systems makes this solution ideal for eco-conscious renovations or builds meeting current European standards.

The L336 achieves a Ud coefficient of 0.85 W/m²K (ift Rosenheim certified), placing it in the high-performance category. This value reflects superior insulation provided by the four-layer glazing system and articulated thermal break of 34 mm, reducing energy losses by up to 40% compared to standard doors. Actual savings depend on door usage frequency and local climate, but they are significant in renovated or newly constructed buildings.

The L336 is constructed from an aluminium profile measuring 3 mm thick, with a total leaf thickness of 92 mm, combining structural rigidity with controlled weight. The glazing system is quadruple cladded — 44.1 triplex / 5mm Satinato / 44.1 Triplex — offering both thermal and acoustic insulation. Available finishes include painting in any RAL colour and decorative hardware, customised to project requirements.

Standard maximum dimensions are 1100 × 2300 mm, and for single-leaf configurations the door can be ordered up to 1200 × 2500 mm. The profiles are designed for flexible adaptation — the total system depth is 92 mm (frame 80 mm) — allowing installation in masonry of varying thicknesses. Any dimension within these limits can be customised to order, with adjustments to hardware and multi-point sealing for optimal performance.

The L336 is equipped with high-quality hardware and a multi-point sealing system with three EPDM gaskets, ensuring secure and airtight closure. The system can be configured with RC2 or RC3 class locking mechanisms (per EN 1627), offering increased protection against burglary attempts. The articulated thermal break and dense profile also reduce shear risk, compatible with installation on standard or reinforced frames depending on the desired security level.

The L336 has a frame depth of 80 mm and total system depth of 92 mm, allowing installation in standard masonry thicknesses (26–50 cm) with aluminium or wooden frames. The system is compatible with standard wall mounting or flush variants (within wall recess), depending on architectural preferences. Installation requires precise frame levelling and perimeter sealing; the dense profile and triple gaskets ensure airtightness even with minor construction deviations.

The four-layer glazing system — with 5mm Satinato interlayer — delivers Class A acoustic insulation, reducing external noise by 30–40 dB depending on frequency. Triple EPDM gaskets, combined with articulated thermal break and dense profile, create a robust acoustic barrier. Aluminium and EPDM seals are highly stable materials; the door will maintain thermal and acoustic performance for 20+ years with minimal maintenance — just regular cleaning and annual hinge lubrication.