Fereastră LEMN-ALUMINIU HF410 Home Pure — Triplu, Passivhaus

The Internorm HF410 Home Pure wood-aluminium window merges solid timber construction with an exterior aluminium weather shield, achieving thermal insulation down to 0.64 W/(m²K) and PassivHaus certification. Triple glazing and sound attenuation of 33–46 dB deliver year-round comfort in any climate.

The Internorm Home Pure series redefines what premium windows mean. The HF410 wood-aluminium model seamlessly blends the timeless comfort of solid timber with the uncompromising weather resistance of an exterior aluminium shield. This synergy delivers not only warm, naturally elegant aesthetics but also decades of reliable performance. Solid wood with finest finishing forms the core, while the aluminium jacket guards against the elements and aging.

Structurally, the HF410 Home Pure features a robust profile with five thermal break chambers and triple glazing optimised for energy retention. Each pane is engineered to redirect thermal loss, while high-density EPDM seals ensure absolute weather-tightness. The Uw value reaches an exceptional 0.64 W/(m²K), placing this window among the most efficient available. PassivHaus certification validates performance in the most demanding standard.

Acoustic insulation ranges from 33 to 46 dB depending on glass configuration, creating an imperious noise barrier whether your home overlooks a busy street or countryside. RC1N and RC2 burglary resistance classes combined with wind and water ingress ratings demonstrate Internorm's uncompromising approach to safety and durability. Laboratory testing confirms resilience under extreme pressures and climate stress.

Design-wise, HF410 Home Pure presents elegant proportions and refined frames that integrate effortlessly into contemporary homes or sensitive historic renovations. Solid wood accepts any RAL colour finishing, while the exterior aluminium profile remains discreetly functional. Large window openings remain structurally rigid, flooding interiors with natural light without sacrifice.

These windows suit passive houses, deep energy renovations, and discerning owners who refuse compromise. Even in cold climates, HF410 Home Pure minimises thermal loss and reduces heating demand, reflected directly in utility bills. Professional installation following Internorm protocols is essential to unlock full performance; our Bucharest showroom provides complete consultation and live demonstrations on authentic samples.

The external aluminium protects the timber structure against weather exposure—UV, rain, and temperature extremes—significantly extending the window's lifespan. This timber-aluminium configuration preserves the thermal and acoustic comfort of wood on the interior, while aluminium ensures durability and contemporary aesthetics outside, without requiring frequent maintenance treatments.

HF410 Home Pure achieves Uw = 0.64 W/(m²K), a value that meets and exceeds standard Passive House certification requirements (maximum 0.80 W/(m²K)). This exceptional performance results from the combination of triple glazing, warm edge spacers, and the timber-aluminium structure, ensuring minimal heat loss and consistent comfort year-round, with significant heating cost reductions.

RC2 (Resistance Class 2) certifies that the window withstands break-in attempts using common tools—such as wedges and hammers—for 3 minutes. HF410 Home Pure meets this class through high-quality multi-point hardware and robust profile design, providing genuine home protection without requiring bars or additional systems. Higher security levels are optionally available with RC3 classification.

A 13 dB difference means approximately 4 times greater noise reduction: 33 dB suits areas with moderate traffic, while 46 dB suits homes near main roads, train stations, or industrial zones. HF410 Home Pure offers the 33–46 dB Rw range through glazing variants — double or triple, with different gaps and fills (argon/krypton) — enabling precise adaptation to each property's acoustic environment.

HF410 Home Pure is ordered to exact measurements — each window is custom-fabricated to your dimensions. Installation involves fixing into prepared wall reveals, sealing with EPDM tape, and caulking with premium sealant, ensuring zero air permeability and full thermal performance. We recommend partnering with a certified Internorm installer, who performs precise measurements and installation according to Passive House standards.

The exterior aluminium requires only annual rinsing with water and light cleaning — no painting or chemical treatments needed. The interior timber in HF410 Home Pure comes pre-coated with superior-quality paint, requiring light touch-ups every 5–7 years depending on sun exposure. Long-term, the robust structure and material combination withstand 40+ years without structural issues, maintaining full thermal and acoustic performance throughout.