Aluminium exterior door L310 made to order

L310 aluminium entrance door with exceptional thermal performance and quadruple glazing — engineered for premium exterior applications.

L310 is a premium aluminium exterior door that merges precise engineering with outstanding thermal efficiency. The 3 mm aluminium profile with a total system depth of 92 mm has been optimized to deliver structural rigidity and long-term dimensional stability, even under the most demanding climatic conditions. This system targets discerning homeowners and architects who refuse compromise on quality, durability, and aesthetic refinement in entrance design.

The construction integrates high-grade aluminium with an articulated 34 mm thermal break that prevents heat transmission across the frame. The 80 mm frame depth accommodates triple EPDM gaskets, creating three independent sealing planes that ensure superior air and water tightness, as well as climatic stability. The quadruple glazing — consisting of 44.1 mm triplex / 5 mm satin glass / 44.1 mm triplex — substantially reduces thermal loss and delivers significant acoustic insulation, essential in urban settings or near traffic corridors.

With a thermal coefficient Ud of 0.85 W/m²K, certified by ift Rosenheim, this door ranks among the most energy-efficient aluminium entrance systems available. Superior thermal performance reduces supplementary heating needs, lowering utility costs and environmental impact. The 92 mm leaf thickness combined with multi-stage sealing systems ensures compliance with international standards for thermal efficiency, air and water resistance, meeting both residential comfort and commercial building codes.

Standard dimensions of 1100 × 2300 mm fit most existing openings, while the single-leaf option accommodates up to 1200 × 2500 mm, providing flexibility in renovation and new construction projects alike. The aluminium profile is available in numerous RAL colours and supports both swing and semi-sliding opening systems, adapting to architectural preferences and ergonomic requirements across diverse interior contexts.

Aluminium's natural corrosion resistance and minimal maintenance requirements make this system ideal for primary entrances, commercial access points, or properties near moisture sources or corrosive environments. The L310 performs exceptionally in contemporary minimalist interiors, industrial-chic renovations, or as a deliberate material contrast with traditional façades, where the visual weight of aluminium becomes an intentional design statement.

The Ud coefficient of 0.85 W/m²K (ift Rosenheim certified) places this door in the elite category for thermal insulation, comparable to passive house window standards. The quadruple glazing with three insulation layers and the articulated 34mm thermal break minimize heat loss, significantly reducing winter heating costs while maintaining superior thermal comfort.

The 3mm aluminium profile is integrated into a 92mm structural depth (full leaf 92mm, frame 80mm) with a 34mm thermal break completely separating inside from outside. The extruded aluminium is treated for corrosion resistance, and the three-point EPDM sealing around the entire perimeter ensures maximum protection against water infiltration and weathering, delivering decades of durability with minimal maintenance.

The technical design with 92mm structural depth and quadruple glazing creates a robust foundation for comprehensive security hardware and multi-point locking systems. The 3mm aluminium profile combined with triple-point EPDM sealing provides structural integrity essential for burglar resistance. We recommend consulting with Thiral specialists to confirm full RC2 or RC3 certification (EN 1627) tailored to your specific property requirements.

Standard dimensions go up to 1100×2300 mm. For larger openings or special architectural needs, the system allows customization up to 1200×2500 mm per leaf. The 92mm structural depth and thermal break system support these proportions without compromising performance. Contact our sales team to explore expansion options and confirm technical-logistical feasibility for your desired dimensions.

The quadruple glazing consists of 44.1 triplex / 5mm Satinato / 44.1 triplex, delivering three separate layers with complementary acoustic properties. The satin-treated central pane and triple-layer outer panes create a superior acoustic barrier, absorbing and dispersing sound waves. This configuration not only delivers thermal insulation (Ud 0.85) but also significantly reduces external noise across the 250–3000 Hz frequency range, essential for homes in urban areas or near traffic-heavy roads.

The 80mm frame installs standard into existing openings with masonry-mounted fixing systems. The total 92mm system depth requires prior verification of wall thickness and proper utility clearance. The installation process includes expansion bar anchoring, high-quality polyurethane sealing, and full functionality testing before finishing. We strongly recommend professional Thiral installation to ensure precise calibration, acoustic sealing verification, and full warranty coverage.