KV 440 Windows with Integrated Blinds — Flush uPVC/Aluminum
More daylight and sun protection in one flush window. The KV 440 puts the blind between the panes and fills its frame with I-tec Insulation, reaching Uw 0.64 W/m²K, the better-insulated of Internorm’s two uPVC/aluminum windows with integrated blinds.
More light, despite sun protection
Internorm introduces the KV 440 with a question: more light despite sun protection? With the blind tucked between the panes of a flush window, you don’t give up glass area to a shutter box or a bulky interior cassette, and with the blind raised the window looks as clean as any standard Internorm window.
The KV 440 is the uPVC/aluminum window with integrated blinds for projects that put energy performance first. It is one of only three Internorm systems with I-tec Insulation as standard, alongside the KF 410 and KF 510, and it reaches Uw 0.64 W/m²K with the best glass coating. Sound reduction runs from 39 to 45 dB.
Internorm designed it to combine with the KF 410 uPVC/aluminum window, so a house can use KF 410 in most rooms and KV 440 wherever shading and privacy are needed, from street-facing bedrooms to a sun-filled great room.
Quadruple protection in one window
Four functions that usually need separate products, delivered by one frame.
Sun protection
Venetian slats tilt to soften glare or close fully against the afternoon sun, while the blind itself is shielded from wind, rain and dirt between the panes.
Privacy
Alongside blinds and Venetian blinds, the opaque Duette® offers absolute privacy, a practical answer on close urban lots and for bedrooms that face the street.
Thermal insulation
I-tec Insulation granulate is pressed into the frame’s hollow chambers and fills them evenly, helping the KV 440 reach Uw 0.64 W/m²K.
Sound reduction
39–45 dB of sound reduction and three perimeter gaskets help keep traffic, construction and lawn-care noise outside.
A flush window
Frame and sash read as one calm surface, so the window looks crisp inside and out with or without the blind lowered.
Concealed security
Fully concealed locking with security up to RC 2, so no visible hardware interrupts the frame.
KV 440 technical data
Published figures for the KV 440 uPVC/aluminum window with integrated blinds.
| Material | uPVC interior, aluminum exterior cladding |
|---|---|
| Thermal insulation, best value | Uw as low as 0.64 W/m²K |
| Thermal insulation, standard coating | Uw 0.77 W/m²K |
| Frame insulation | I-tec Insulation granulate, standard |
| Sound reduction | 39–45 dB |
| Security | Up to RC 2 |
| Locking | Fully concealed |
| Sightline, flying mullion (two sashes) | 144 mm |
| Sightline, mullion (two sashes) | 198 mm |
| Gaskets | 3, exterior gasket in light grey or black |
| Design styles | home pure, home soft, ambiente |
| Room-side finish | uPVC, or I-tec Decor digital print in 13 designs |
| Smart control | I-tec SmartWindow app; Smart Home ready via I-tec Connect |
| Expected service life | 40+ years |
Uw depends on window size, glazing and blind. We confirm the data for your configuration, including construction depth and frame sightlines, when we quote.
Three design styles
The KV 440 is the only uPVC/aluminum window with integrated blinds offered in all three of these Internorm styles.
home pure
Square-edged and contemporary. The crispest of the three, made for modern builds, minimalist interiors and large, simple openings.
home soft
Rounded edges give a sleek, timeless profile that settles into almost any interior, from transitional to Scandinavian.
ambiente
Classic profiled detailing for traditional architecture, a good match for Georgian bars and period-style trim in a renovation.
How the KV 440 works through the year
Winter. With I-tec Shading in automatic mode, the Venetian blinds open fully during the day so low winter light can warm floors and furniture, then close at sunset. Internorm notes that making the most of winter sun this way helps reduce heating costs.
Summer. Lower the blinds on south and west elevations before the hottest part of the day. Tilted Venetian slats keep the room bright but cut glare; the opaque Duette® shuts the light out completely for bedrooms, nurseries and home theatres.
All year. The frame does the heavy lifting on insulation. I-tec Insulation, triple gaskets and the aluminum weather shell give the KV 440 Uw values down to 0.64 W/m²K, the number that matters when you or your energy advisor are modelling heating loads. Compare that with 0.79 for the slimmer KV 350.
Operation and maintenance, day to day
Living with a KV 440 is mostly about the chores that disappear.
- 01
Morning
In automatic mode the Venetian blinds open at sunrise. Prefer to decide yourself? Use the control at the window or the remote.
- 02
Away from home
Forgot to close the blinds before a trip? The I-tec SmartWindow app and I-tec Connect let you adjust them from a smartphone or tablet, wherever you are.
- 03
Smart home
Add a small bridge device from an Internorm partner and I-tec Shading works through the Matter standard with Alexa, Google Home, Apple HomeKit or SmartThings.
- 04
Cleaning
Wipe glass and frame with a damp cloth and mild cleaner. The blind stays clean between the panes, with no slats to dust or cords to tangle.
- 05
Years later
Redecorating? The clip-on/clip-off system allows blinds to be changed or interchanged, in a window built for an expected service life of 40+ years.
How the KV 440 compares
The KV 440 sits between the slim KV 350 and the timber-lined HV 450.
| KV 350 | KV 440 | HV 450 | |
|---|---|---|---|
| Uw, best value | 0.79 W/m²K | 0.64 W/m²K | 0.62 W/m²K |
| Uw, standard coating | 1.0 W/m²K | 0.77 W/m²K | 0.97 W/m²K |
| Sound reduction | 38–44 dB | 39–45 dB | 39–46 dB |
| I-tec Insulation in the frame | No | Standard | Thermal foam composite instead |
| Room-side finish | uPVC or I-tec Decor | uPVC or I-tec Decor | Real timber |
| Design styles | home pure, ambiente | home pure, home soft, ambiente | home pure, home soft, ambiente |
| Companion window | KF 310 | KF 410 | HF 410, HF 510 |
“Excellent windows and doors for noise and heating and cooling. We had to install new windows in some rooms in our old house and the difference between these ones and our old ones was obvious right away, no condensation in the winter, much quieter in summer (we had very noisy neighbours), very little heat loss so the rooms were warmer in winter and cooler in summer. We were so impressed that we installed them throughout our new house. Viktoryiya was so easy to work with, and the installation was excellent and problem free!”
KV 440 questions
Insulating granulate is pushed under pressure into the frame’s hollow chambers and fills them evenly. Internorm fits it as standard in only three systems, the KF 410, KF 510 and KV 440. It is a key reason the KV 440 reaches Uw 0.64 W/m²K, compared with 0.79 for the KV 350.
It is the opaque choice. Internorm describes the Duette® as offering absolute privacy and lists it as a black-out blind, so it suits bedrooms, nurseries and media rooms. Venetian blinds, by contrast, let you tilt the slats to balance privacy with daylight.
Yes, with I-tec Shading. The I-tec SmartWindow app runs on a smartphone or tablet, and I-tec Connect makes the system Smart Home ready, so you can adjust the blinds while you are away. With a small bridge device it also works through Matter with common smart home platforms.
Follow the architecture. home pure has square edges for contemporary houses, home soft has rounded edges and a softer, timeless look, and ambiente has classic profiled detailing for traditional homes. Bring photos of your house and we will help you compare them.
Yes. The room-side uPVC can be finished with I-tec Decor digital printing in 13 designs, including Oak natural, Walnut natural and Spruce natural, sealed with a top coat that protects against UV and household cleaners. For real timber, look at the HV 450.
It was designed to. Internorm notes that the KV 440 combines easily with the KF 410 uPVC/aluminum window, so you can mix the two across a project and add integrated blinds only where they are needed.
Related windows
KV 350 uPVC/Aluminum
The ultra-slim 74 mm option, in home pure or ambiente.
Explore
HV 450 Timber/Aluminum
Timber inside, completely flush, Uw as low as 0.62.
Explore
KF 410 uPVC/Aluminum
The companion window for rooms that don’t need a blind.
Explore
Windows with integrated blinds
Blind types, I-tec Shading and the full comparison.
ExploreData sheets & brochures
Dimensions, profile sections, glazing build-ups and performance values — ready for your architect or builder.
Get a KV 440 quote
Share your plans or window sizes, tell us which rooms need shade or black-out, and let us know your energy targets. We’ll specify the KV 440 configuration and send a detailed quote with the data for each window.