Aluminium exterior door L420 made to order

Aluminium exterior door with 92 mm profile and thermal coefficient Ud 0.85 W/m²K, fitted with quadruple glazing for superior insulation and durability. Premium solution for contemporary external entries.

The L420 exterior door represents an access solution that merges the robustness of aluminium with outstanding thermal performance. The system profile reaches a total depth of 92 mm, with a frame depth of 80 mm, creating a solid and rigid structure ideal for contemporary buildings prioritizing energy efficiency and security.

This model's construction relies on high-quality aluminium with a 3 mm thickness, reinforced by an articulated thermal break of 34 mm — an engineering solution that eliminates thermal bridges while maintaining structural stability. The quadruple glazing 44.1 triplex / 5 mm Satinato / 44.1 Triplex delivers not only superior thermal insulation but also light control and privacy, while triple EPDM seals ensure complete perimeter tightness.

The declared thermal coefficient of 0.85 W/m²K (according to ift Rosenheim) places it in the top category for heat loss reduction. This means consistent comfort during cold seasons and a significant contribution to lowering heating energy consumption. Aluminium's resistance and the multi-seal system guarantee long-term durability, even under harsh climatic conditions.

Standard dimensions up to 1100×2300 mm and the possibility of a single leaf up to 1200×2500 mm offer design flexibility. The system adapts easily to custom openings and enables access solutions with visually pleasing proportions, whether for a main entrance or transitions to outdoor spaces.

Recommended for premium residences, commercial buildings and offices where thermal performance and modern appearance are paramount. It integrates seamlessly into contemporary architecture, complementing surfaces with natural finishes or polished concrete, as well as in combinations with minimalist hardware.

The thermal coefficient Ud of 0.85 W/m²K places this door in the high insulation category, certified by ift Rosenheim. This means minimal heat loss through the door, reducing heating costs and ensuring consistent comfort at the entrance. The quadruple glazing with triplex layers and 5mm Satinato spacer directly contributes to this superior performance.

The door features an aluminium frame and leaf of 3mm with articulated thermal breaks of 34mm, preventing cold transfer and condensation. The total profile depth of 92mm is engineered for structural stability and superior insulation. The aluminium used is corrosion-resistant, requires no special protective treatments, and cleans easily with water and soap. Painted or veneered finishes are durable and maintain aesthetic appeal over the years.

The door is equipped with three multi-point EPDM gaskets ensuring complete sealing and preventing water and wind infiltration. The system is ift Rosenheim certified, guaranteeing compliance with European standards for water and wind resistance. For security, the door can be configured with concealed hardware and high-retention hinges preventing unauthorised opening. The option for RC2 or RC3 (break-in resistance) classes provides additional protection according to DIN EN 1627 standards.

The door is available in standard dimensions up to 1100×2300 mm, and for single-leaf configurations, it can reach 1200×2500 mm. Beyond these limits, the door can be made-to-order at exact measurements based on your specific opening. The pivot or hinge system can be adapted for different proportions, including atypical openings. We recommend consulting a specialist for precise site measurement and selecting the optimal configuration.

The door is installed within the wall opening with a frame depth of 80mm, adapting to standard brick, concrete, or stone masonry. Installation requires precise measurement and levelling both vertically and horizontally. The system is compatible with standard rectangular frames and can be adapted to walls with additional insulation via frame extensions. We recommend professional installation to ensure proper sealing and smooth mechanism operation.

The door features quadruple specialised glazing composed of 44.1 triplex (exterior) / 5mm Satinato (intermediate) / 44.1 triplex (interior). This configuration provides excellent acoustic insulation, reducing external noise by 30-40 dB. Triplex (laminated glass) offers additional safety, being impact-resistant and preventing accidental breakage. Satinato provides visual privacy and naturally diffuses light, making it an aesthetic quality choice.