Fereastră PVC KF410 Home Soft — Triplu, Passivhaus

Internorm KF410 Home Soft PVC window with ergonomic profile and triple glazing, delivering thermal performance of Uw 0.62 W/(m²K) and PassivHaus certification for superior comfort.

The Home Soft series from Internorm's portfolio is distinguished by refined design with soft lines and a harmonious transition from frame to sash. It embodies a design philosophy centred on understated elegance and integrated functionality, ideal for contemporary homes seeking subtlety and performance in equal measure.

The triple-chamber PVC profile of the KF410 Home Soft is engineered to deliver exceptional thermal insulation. The triple glazing incorporates high-performance low-e coatings that minimise heat loss and optimise interior comfort throughout the year. With a Uw value of 0.62 W/(m²K), this window ranks among the most efficient insulation solutions available, opening possibilities for near-zero energy buildings and passive house projects.

Acoustic performance, represented by Rw values ranging from 34–47 dB, ensures effective attenuation of external noise, creating a tranquil and pleasant indoor environment. The RC2 burglar resistance classification guarantees increased resistance to forced entry attempts, offering enhanced security for your home. PassivHaus certification confirms that this window meets the most stringent international standards for energy efficiency and durability.

Home Soft accommodates customised finishes and adapts seamlessly to diverse architectural contexts, from character renovations to modern new builds. Its clean lines and balanced proportions integrate elegantly into any façade, regardless of your stylistic preferences.

It is particularly recommended for renovations in congested urban areas where acoustic insulation becomes a priority, and for new constructions targeting energy performance. The KF410 Home Soft transforms expectations of interior comfort, combining advanced technology with understated aesthetics.

Uw 0.62 W/(m²K) places the KF410 in premium performance territory—meaning minimal heat loss through glass and frame. For perspective: an older typical window loses about 2.5; this one keeps warmth much more efficiently, reducing heating load and stabilizing room temperature. KF410 holds PassivHaus certification, so if you're planning energy-efficient renovation or building, this window fits directly into that strategy.

Triple glazing means three panes of glass with air (or argon/krypton gas) gaps between them. These gaps absorb and dampen sound waves, which is why KF410 achieves acoustic insulation Rw of 34–47 dB—ideal if you live on a busy street or near an airport. Each layer adds both thermal and acoustic barrier, so the combined performance gives noise protection and thermal comfort at the same time.

KF410 installs in wall thicknesses between 60–360 mm, with a universal mounting system and integrated sealing gasket. Sizes are custom-ordered based on site measurement for each project; there are no fixed standard sizes—this means maximum flexibility for any opening. We recommend contacting a sales consultant to discuss installation details and to receive precise sizing based on your window location and structural conditions.

RC2 (Resistance Class 2) means the window has high resistance to break-in—frame and glass are reinforced to withstand attempts with common hand tools. RC2 is the recommended standard for residential properties and provides substantial protection against unauthorized entry attempts. Multi-point hardware and RC2-grade glass work together as components; KF410 integrates both, delivering trustworthy security without compromising design.

KF410 Home Soft comes in a standard color palette with classic options (white, grey, anthracite) and custom tints can be arranged. The smooth matte finish offers a premium appearance and is easier to maintain long-term than textured alternatives. To explore specific variants and see physical samples, consult the Internorm portfolio—color swatches and finishes may vary slightly by batch and lighting, so we recommend direct comparison at the showroom.

Maintaining KF410 is straightforward: clean the PVC frame with water and mild soap, avoid abrasive solvents. Sealing gaskets are inspected annually and can be lubricated with silicone grease if needed; triple glass requires no special treatment. Long-term, PVC remains stable and doesn't warp or crack; insulation depths stay consistent. PassivHaus certification means the window will maintain its performance 20–30+ years with minimal upkeep.