Aluminium exterior door L420-1 made to order

Aluminium exterior door with 92 mm profile and thermal insulation rated Ud 0.85 W/m²K. Quadruple glazing system with articulated thermal break and triple EPDM sealing for superior weather protection.

The L420-1 series represents a refined solution for exterior access, engineered with precision around energy efficiency and longevity. The aluminium profile, 3 mm in thickness with a total system depth of 92 mm, delivers optimal proportions between structural integrity and aesthetic refinement. This exterior door sits in the upper-middle segment, serving renovations and new builds requiring a decisive thermal and acoustic boundary between interior comfort and exterior conditions.

The material foundation is aluminium with an articulated thermal break of 34 mm, calculated to arrest heat transfer during cold seasons. The quadruple glazing—Triplex 44.1 mm, Satinato layer 5 mm, Triplex 44.1 mm—creates a substantial opaque and acoustic barrier of exceptional performance. Three EPDM gaskets seal progressively, blocking water and wind infiltration at source. The 80 mm frame depth accommodates standard mounting and precision fitting within conventional apertures.

Thermal insulation rated Ud 0.85 W/m²K—third-party certified by ift Rosenheim—aligns the door with current Northern European standards, reducing heat loss and sustaining interior climate stability. Acoustic performance is reinforced by glazing mass and gasket density. The system accommodates maximum single-leaf dimensions of 1200 × 2500 mm, enabling generous openings without structural compromise.

Colour and surface treatment personalisation responds to architectural preference and interior idiom. Aluminium integrates seamlessly into monolithic, modernist, and even heritage schemes, ensuring visual coherence across residential typologies. Standard pivot and swing configurations support fluid circulation and universal accessibility.

This door suits contemporary residences, boutique commercial premises, and spaces benefiting from exterior vistas. It merges thermal and acoustic performance with restrained aesthetics, ideal for urban and rural plots where climate control and noise reduction are priorities.

With a thermal coefficient of Ud 0.85 W/m²K (ift Rosenheim certified), this door ranks among Europe's top-tier exterior solutions. The 92 mm profile combined with a 34 mm articulated thermal break and quadruple glazing system with triple-layer glass ensures excellent insulation and energy efficiency.

The quadruple glazing system comprises: 44.1 triplex (outer) / 5 mm air gap / 44.1 triplex (inner). This delivers optimal security and thermal insulation. The 44.1 triplex glass (4+4+1 mm) provides impact resistance and controlled fracture; the 5 mm air chamber enhances thermal performance and sound attenuation. Perfect for residential properties requiring good acoustic and security characteristics.

The door is equipped with 3 multi-point EPDM gaskets ensuring superior airtightness around the entire frame perimeter. EPDM rubber is resistant to thermal fluctuations and UV exposure without degradation, maintaining elasticity for 20+ years. The three sealing lines—frame, leaf contact, and threshold—eliminate water and air infiltration, reducing heat loss and ambient noise substantially.

Yes, this door is available in custom dimensions per specification. Standard maximum dimensions are 1100×2300 mm (double-leaf) and up to 1200×2500 mm (single leaf). Custom sizing is made-to-order; for extreme dimensions or special configurations, we recommend technical consultation with our showroom team to validate wall compatibility and anchoring requirements.

The L420-1 features an aluminium core with a 92 mm profile and 3 mm sheet thickness. This combination delivers structural rigidity, durability, and significant weight reduction compared to other materials. The finish is available in paint or veneer options across a wide palette of colours and textures. Aluminium requires minimal maintenance and resists weathering and corrosion exceptionally well.

The total system depth is 92 mm with a frame depth of 80 mm and leaf thickness of 92 mm. This sizing accommodates installation in standard masonry (brick, concrete, stone) and exterior thermal insulation systems. Mechanical anchoring must comply with EN 14351-1 standards. For non-standard walls or wide joints, technical consultation is recommended to ensure proper fit and airtightness.