Internorm Window and Door Videos, with an InterHaus Viewing Guide
Fifteen films on tilt & turn windows, I-tec technology, triple glazing and lift & slide doors. Alongside them we explain what to watch for, what it means in a Canadian winter and which product page holds the figures. New videos appear on our YouTube channel, @interhauspremiumwd.
How to watch these videos
Most of these films come from Internorm, and several were produced by Internorm UK. They show the products close up and in motion, which no brochure can do. Keep two things in mind. The UK videos use British terms, so “uPVC-aluminium” is our uPVC/aluminum window and “timber-aluminium” is what we call wood/aluminum. And any performance figure mentioned in a video applies to the configuration filmed; the values we quote for Canadian projects are the ones on each product page and its data sheet.
Short on time? Watch three: the Passivhaus tilt-turn video for how the window operates, the triple versus double glazing video for why the glass matters, and the I-tec Secure video for what makes Internorm locking different. Together they take you from the basic opening to the details that separate one premium window from another.
All 15 videos
Click any thumbnail to play it on this page. The numbers match the guide below.
Passive House tilt & turn windows
A tilt & turn window does two jobs with one handle. Turn the handle to horizontal and the sash swings fully inward like a door, so you can clean the outside pane from indoors and get maximum airflow on a summer evening. Turn it up to vertical and the sash tilts in at the top, leaving a secure gap for ventilation without opening the window fully. Watch for this sequence in video 01; it answers the most common question we hear from people used to sliders and crank-out casements.
Why it matters for Passive House: the sash closes against the frame instead of sliding past it, so three continuous gaskets are compressed all the way round when it locks. That is how these windows reach the airtightness a Passive House envelope demands, and why the inner pane stays warm enough to sit beside in January. Video 03 then looks at Internorm windows and doors across Passivhaus projects as a whole.
Among the systems we supply, the KF 410 in uPVC/aluminum is PHI-certified, and we turn around quotes on Passive House drawings within 72 hours. Our Passive House windows page lists every certified system we supply.
Triple versus double glazing
This video answers the question behind most window budgets. A triple-glazed unit has three panes and two sealed cavities filled with argon or krypton, with wafer-thin coatings on the glass. Each cavity is another barrier, so the inner pane stays closer to room temperature. That is what prevents condensation on the inside of the glass, and the chill you feel beside a large double-glazed window on a –20 °C night.
Internorm’s catalogue puts the trade-off in design terms: choosing triple instead of double insulating glazing lets you add around 40% more glass area without increasing your heating costs. For an Ontario home with big south-facing openings, that is the difference between a design that works on paper and a room that is comfortable in February.
Our article on European triple glazing goes further into glass build-ups and U-values.
The I-tec videos, explained
I-tec is Internorm’s name for the technologies it develops in-house. Video 06 introduces the family; the others focus on one each.
I-tec Secure
Video 05. Instead of locking pins, flaps in the sash press into the frame on all four sides, so the window is virtually impossible to lever out. Standard on KF 510 and KF 520, up to RC 3. The flaps also leave a smooth frame that wipes clean easily.
I-tec Shading
Video 09. Blinds sit between the panes, powered by a photovoltaic module and battery, so no wiring is needed. In automatic mode a temperature sensor lets winter sun in and helps keep summer overheating down.
I-tec Decor
Video 02. A digital print built up in layers on the interior uPVC profile and sealed with a top coat against UV and cleaning agents, so a uPVC window can look like oak, walnut, spruce or concrete inside.
I-tec Glazing
Part of the same family: the glass is bonded to the sash all the way round. The bond stiffens the sash, improves insulation and sound reduction, and stops the pane from being pushed out.
I-tec Insulation
Insulating granulate is pressed into the hollow chambers of the frame, filling them evenly. It is standard on KF 410, KF 510 and the KV 440 window with integrated blinds.
I-tec Connect
Brings I-tec Shading into a smart home. Through a small bridge it works with Matter-compatible systems such as Amazon Alexa, Google Home, Apple HomeKit or Samsung SmartThings, so you can adjust blinds while away.
The windows and doors in the videos, side by side
Figures as published on our product pages. “As low as” values depend on size and glazing, so your quote states the values for your configuration.
| KF 310 | KF 520 | HF 410 | HS 330 | |
|---|---|---|---|---|
| Type | uPVC/aluminum window | uPVC/aluminum window | Wood/aluminum window | Wood/aluminum lift & slide door |
| Videos | 10 | 07, 08 | 04, 11, 15 | 14 |
| Uw, as low as | 0.69 W/m²K | 0.63 W/m²K | 0.64 W/m²K | 0.73 W/m²K |
| Sound reduction | 33–45 dB | 33–46 dB | 33–46 dB | 32–40 dB |
| Security | RC 2 | RC 3 | RC 2 | Multi-point lock |
| Construction depth | 74 mm | 93 mm | 85 mm | 209 mm |
| Defining feature | Slim, three design styles | Glass sash that reads as fixed glazing | Real timber inside, four design styles | Panels up to 3.2 m high |
KF 310 and KF 520 values are for the uPVC/aluminum versions.
KF 520 and KF 310: two answers to “how much frame?”
The two KF 520 videos show Internorm’s most minimal uPVC/aluminum window. Its glass sash means that from outside you see glass and the aluminum frame but no sash profile, so an opening window looks the same as the fixed pane beside it. If the frame is plastered in, which is possible on three sides, it almost disappears. Watch the locking detail too: I-tec Secure is built in as standard, which is why the KF 520 reaches RC 3.
Video 10 shows the opposite brief. The KF 310 is the slim, proven workhorse: a 74 mm deep uPVC/aluminum frame, I-tec Glazing as standard and three design styles. It suits renovations where the existing opening limits depth, and projects where the budget has to stretch across many windows without giving up triple glazing or concealed locking. Video 12 covers the wider uPVC and uPVC/aluminum family both windows belong to.
Timber/aluminum: HF 410 windows and the HS 330 lift & slide door
When you watch the timber/aluminum videos, look at how the materials are layered. Inside is real timber; outside is powder-coated aluminum that never needs painting; between them sits a thermal foam layer, so the aluminum is not fixed straight onto the wood. The HF 410 comes in all four design styles with spruce, larch, oak or walnut inside. Video 04’s title presents it as triple glazed and Passive House certified; for a certified project we confirm the PHI documentation for the exact configuration you order.
Video 14 moves to the HS 330 timber/aluminum lift & slide door. Turning the handle lifts the sash off its seals so it rolls freely, and closing it lowers the sash back onto the gaskets. That is how a sash of up to 400 kg moves with a light push yet still seals tightly through winter. Panels reach 3.2 m in height, the timber options match the HF windows, and the HS 330 page has the data sheet.
From video to product page
Each product page carries current figures, colour options and data sheets.
KF 520 uPVC/Aluminum
The glass-sash window from videos 07 and 08, with I-tec Secure as standard.
Explore
KF 310 uPVC/Aluminum
The slim 74 mm system from video 10.
Explore
HF 410 Wood/Aluminum
Timber inside, aluminum outside, as in videos 04 and 11.
Explore
HS 330 Lift & Slide
The timber/aluminum lift & slide door from video 14.
Explore
Integrated Blinds
KV 350, KV 440 and HV 450 with I-tec Shading between the panes.
Explore
I-tec Innovations
Secure, Shading and the rest of the I-tec family on one page.
ExploreVideo blog questions
On our YouTube channel, @interhauspremiumwd. Subscribe there for product highlights, installation tips, maintenance advice and design ideas as they are published.
The windows come from the same Austrian factories, but glazing, hardware and configuration are specified project by project, and the British videos use UK terms. Use the videos to see how the products look and work, and rely on our product pages and your quote for Canadian figures.
Yes. Our showroom at 217 Speers Rd. Unit 8, Oakville, has Internorm windows, entrance doors and lift & slide doors on display, including working tilt & turn windows with I-tec Shading.
For most homes, yes. The inner pane stays warmer, which cuts condensation and cold spots near the glass, and Internorm’s catalogue notes it allows around 40% more glass for the same heating cost. Some systems, such as the KF 310, can also be double glazed, and we can price both.
Yes. Because the sash opens inward, the flyscreen sits outside. Internorm offers fixed, hinged, sliding and pull-down flyscreens, plus pleated screens that also suit lift & slide doors.
Seen the videos? Try the real thing
Operate a tilt & turn window, slide a lift & slide door and compare frames side by side in our Oakville showroom, or send your drawings for a quote.