Fereastră LEMN-ALUMINIU HF410 Home Pure — Triplu, Passivhaus

The INTERNORM HF410 Home Pure windows combine the warmth of timber with aluminum protection, delivering PassivHaus-class thermal insulation (Uw 0.64) and superior acoustic performance. Triple-glazed construction for maximum comfort and structural integrity.

The HF410 Home Pure series from INTERNORM represents the perfect synthesis of tradition and innovation. The hybrid wood-aluminium construction is a mature solution developed for those demanding exceptional performance without compromise. The solid timber interior preserves the natural warmth and elegance of your space; the extruded aluminium exterior offers absolute durability and protection against environmental factors. This combination is not merely technical—it is a statement of value for discerning residences.

Triple glazing with insulating gas chambers and low-emissivity coating ensures a Uw coefficient of just 0.64 W/(m²K), a value that certifies PassivHaus standard compliance. This is not a simple improvement—it is performance that redefines energy efficiency. The profile system is engineered to minimize thermal bridging, and specialized sealing gaskets guarantee certified air permeability. Every millimetre is conceived to work seamlessly with radiant heating and controlled ventilation, the technologies of future passive houses.

Acoustic insulation is an equal priority: Rw values range from 33 to 46 dB depending on glazing configuration, meaning urban traffic noise and intrusive soundscapes are reduced to a whisper. The RC1N and RC2 burglar resistance classifications provide structured protection against unauthorized entry, while the triple glazing contributes to thermal and mechanical shock resistance. Certifications attest that these windows are built to endure generations, not merely seasons.

The interior timber can be customized in natural tones or RAL-painted finishes, integrating seamlessly into any architectural concept—from minimalist modern homes to listed building renovations. The exterior aluminium is available in classic anodized or powder-coated finishes, offering visual unity with the building envelope. Window configurations (sliding, tilt-and-turn, fixed light) are flexible and adapt to each space's requirements.

These windows are the logical choice for passive houses, deep energy retrofits, and dwellings in regions with extreme climatic demands. INTERNORM HF410 Home Pure does not merely promise to lower your heating bill—it promises quietude, durability, and a quality of life that compounds over time.

Uw 0.64 W/(m²K) represents PassivHaus-level performance — the highest thermal insulation class. This means minimal heat loss through the glass and frame, maintaining stable indoor temperature and drastically reducing energy consumption. The HF410 Home Pure window ensures consistent comfort even on extremely cold days, without cold zones near the window.

The wood-aluminium construction is a hybrid solution: the solid wood profile inside offers warm aesthetics and superior thermal insulation, while the aluminium cladding on the exterior facade protects the wood from moisture, UV rays and weather. Aluminium is corrosion-resistant and maintenance-free, keeping the window's appearance pristine for decades without degrading the underlying wood.

Rw 33–46 dB is acoustic performance that varies depending on the glass configuration and spacer used. At 46 dB, the HF410 window reduces traffic noise to one-third of its original level, translating to quiet living spaces even on busy streets. The combination of triple glazing and the solid wood-aluminium profile absorbs low and mid frequencies very effectively.

RC1N is standard protection against manual break-in attempts — adequate for most ordinary homes. RC2 adds multi-point hardware and laminated glass, providing resistance to organised break-in attempts, recommended for properties in high-risk urban areas, commercial spaces or architecturally valuable homes. RC2 must be specified at order and slightly extends the manufacturing timeline.

HF410 Home Pure windows are ordered with dimensions precisely customised to your specific measurements. We recommend contacting the KULTTUR showroom team for professional surveying — this determines not only the dimensions but also correct sill positioning and insulation level based on window orientation. Installation is performed by Internorm-authorised installers, following sealing and thermal insulation protocols.

The HF410 wood-aluminium construction has a lifespan of 30-40 years with proper maintenance. The exterior aluminium requires no painting and is weather-resistant. The interior wood needs checking every 3-5 years to maintain the finish's water-repellency — a simple cleaning and possibly a coat of clear lacquer. Multi-point hardware is checked annually and lightly lubricated. Windows are cleaned regularly and seals inspected for deterioration.