Fereastră PVC KF310 Home Soft — Triplu, Passivhaus

Internorm KF310 Home Soft PVC windows with triple glazing and Passivhaus certification. Thermal insulation Uw 0.69 W/(m²K) and acoustic protection up to 45 dB for premium comfort.

The Internorm KF310 Home Soft window exemplifies premium PVC window engineering designed for homes that demand both energy efficiency and acoustic comfort. Part of the Home Soft series, this window operates in the upper segment of PVC profiles, catering to homeowners who value understated design paired with exceptional performance. As an Austrian manufacturer with decades of window technology expertise, Internorm ensures reliable, long-lasting solutions that withstand the test of time.

At the core lies a precisely engineered PVC profile coupled with triple glazing technology. Each unit features three panes of glass with low-e coating, separated by sealed chambers filled with inert gas. This configuration achieves a thermal transmittance value Uw of up to 0.69 W/(m²K), positioning this window among the market's most efficient. The performance is reinforced by optimized profile geometry and multi-stage sealing strips that minimize thermal bridging even in extreme weather conditions.

Acoustic insulation is a defining strength of the KF310 Home Soft. The sound reduction index Rw ranges from 33–45 dB depending on glass and profile configuration, effectively attenuating external noise. The window holds Passivhaus certification, an internationally recognized standard for ultra-low-energy building that verifies superior thermal and airtight performance. Security classification RC2 provides tested resistance to burglary attempts and forced entry, suitable for residential applications with moderate security requirements.

Aesthetically, the Home Soft series excels through clean lines and harmonious proportions. The PVC profile permits multiple finish options and adapts seamlessly to diverse architectural styles—from contemporary residences to heritage renovations. The restrained design ensures the window remains visually transparent, allowing views and natural light to dominate the visual experience.

The KF310 Home Soft is recommended for passive house projects, energy retrofit applications, and homes in high-noise urban environments. Choosing this window translates to enhanced daily comfort, measurable energy savings, and lasting protection of your property. Professional installation following Internorm specifications is essential to guarantee full technical performance.

The KF310 Home Soft achieves a Uw value of 0.69 W/(m²K) through its triple glazing combined with the high-performance PVC profile, minimizing heat loss and substantially reducing heating costs. This thermal excellence makes it perfect for passive houses and nearly zero-energy buildings where energy efficiency is non-negotiable.

The KF310 Home Soft provides sound insulation Rw of 33–45 dB, significantly dampening external noise — the maximum value effectively filters heavy traffic and aggressive sound sources. This acoustic performance is enhanced by the triple glazing and warm spacer bar, which stabilizes the acoustic chambers between panes.

The KF310 Home Soft carries RC2 certification, resisting break-in attempts with hand tools and light attacks on windows and doors. Multi-point hardware and security glazing provide robust protection, while the Internorm PVC profile ensures structural rigidity — a reliable home security solution.

The KF310 Home Soft is made-to-measure with customizable dimensions and finish options — the PVC profile is available in various colors to seamlessly integrate with your home's architecture. Each window is manufactured in Austria according to your exact specifications, ensuring a perfect fit.

The PVC profile of the KF310 Home Soft is extremely low-maintenance — it requires no annual painting and doesn't fade in sunlight. Simple cleaning with mild detergent and water once a year is sufficient to keep it in optimal condition. Drainage systems and the warm spacer are engineered to prevent moisture buildup, ensuring durability for decades.

Installation of the KF310 Home Soft should be performed by certified professional installers to guarantee optimal thermal and acoustic performance — correct wall positioning and rigorous sealing are essential. Internorm provides detailed installation guides and accepts custom orders with precise dimensioning for your existing openings, minimizing risks.