Aluminium exterior door L151 made to order

The L151 exterior door combines high-performance aluminium with a thermal coefficient of 0.85 W/m²K, delivering superior energy efficiency and comfort for contemporary homes.

The L151 model represents a premium solution in the aluminium exterior door range, engineered for contemporary constructions that demand uncompromising thermal performance and architectural refinement. The 3 mm aluminium profile, combined with a total system depth of 92 mm, creates a rigid yet elegantly proportioned structure, perfectly suited for integration into contemporary and minimalist facades.

The entire system benefits from an articulated thermal break of 34 mm, an advanced technology that prevents thermal bridging and significantly reduces heat loss. Quadruple glazing — composed of 44.1 mm triplex, 5 mm Satinato, and 44.1 mm triplex — delivers exceptional thermal insulation alongside superior acoustic performance and UV protection. Triple EPDM gaskets ensure flawless sealing throughout the door's lifespan.

Certified thermal performance (Ud = 0.85 W/m²K per ift Rosenheim standards) positions L151 in the A+ energy efficiency category, reducing heating and cooling demands throughout the year. The 80 mm frame depth and 92 mm leaf thickness guarantee structural integrity even at larger dimensions, with customization available up to 1200×2500 mm for single-leaf configurations and 1100×2300 mm for standard solutions.

This door adapts seamlessly to premium residential projects, commercial spaces with stringent energy requirements, and heritage property renovations demanding discreet modernization. Available opening systems — hinged, sliding, or pivot — provide design flexibility suited to any architectural scenario, from urban apartments to countryside residences with panoramic views.

Aluminium construction quality and ift Rosenheim certification guarantee weather resistance, long-term durability, and proven suitability for European climates. L151 is the ideal choice for owners who value energy performance, understated elegance, and long-term investment in home comfort.

With a Ud thermal coefficient of 0.85 W/m²K (ift Rosenheim certified), this door exceeds European energy efficiency requirements and qualifies for ultra-low-energy building standards. The articulated 34 mm thermal break combined with quadruple glazing minimizes heat loss year-round.

The door features 3 mm aluminium frames with a total leaf depth of 92 mm, providing exceptional rigidity and resistance to warping. Aluminium with articulated thermal break is naturally corrosion-resistant, maintenance-free, and maintains structural integrity for decades even in harsh coastal or alpine conditions.

Standard configurations reach up to 1100×2300 mm, while single-leaf setups accommodate up to 1200×2500 mm. Custom sizing is available to match your exact opening dimensions and masonry depth, with frame adjustments for different wall thicknesses.

Three EPDM gaskets create a multi-point seal around the entire leaf perimeter, effectively preventing water and wind intrusion even under pressure. The sealing system is engineered to equalize pressure differences and manage condensation through controlled drainage paths built into the frame design.

Installation involves securing the frame into a 80 mm deep reveal, adapted to your existing wall thickness with symmetric compensation. Professional installation ensures correct shimming, mortar bedding on three sides, and waterproofing application around the perimeter—critical for the sealing system and drainage to function properly.

Aluminium requires minimal maintenance—simply wipe with water and mild detergent. EPDM gaskets are easily accessible and can be replaced if they degrade after years of UV exposure or thermal cycling, without removing the door assembly. Annual seal inspection ensures optimal performance over decades.