Integrated solar control glazing or film applied afterwards: what's the difference?
By the VitraCare Team
Cutting the heat that comes in through a window can be done in two quite different ways: choosing solar control glazing from the start, at manufacturing, or applying a film to glazing that's already there. The result you're after is the same. How you get there, and what it costs, much less so. Here's what to know before deciding.
What is integrated solar control glazing?
Solar control glazing is double or triple glazing where one of the glass layers gets a special treatment at manufacturing, to filter part of the solar radiation. This solution is built into the window itself. Adding it later isn't an option: it's decided when you buy or replace the glazing, not after.
What is solar control film applied afterwards?
Film, on the other hand, goes straight onto glazing that's already there, nothing gets replaced. At VitraCare, our collaborator always applies the film on the interior side, whatever the window size. He made that call because the film holds up better over time that way.
Cost, timeline, reversibility: the real differences
On budget, expect 150 to 300 €/m² for standard double glazing with integrated solar control, and up to 400 €/m² for a high-performance version. That means real construction work: removal, a new frame or new glazing. And once it's in, there's no going back.
Film costs 8 to 80 €/m² depending on the type, so noticeably cheaper. One visit is enough, no major work involved, and you can still change your mind later since it stays reversible.
In practice, integrated glazing mostly makes sense if you're replacing your windows anyway, for another reason (faulty glazing, poor insulation). If they're still in good shape, film covers the same need, without the construction work that comes with it.
Which one reduces heat the most?
Integrated glazing was built for this from day one, so its performance stays consistent. Film holds its own too: the U.S. Department of Energy measured up to a 30% drop in cooling-related energy use from window films, just by limiting the solar heat that gets through the glass.
And it shows on the ground: our clients notice it within the first few days after installation, and that's not unique to VitraCare. The same thing comes up with installers of this type of film everywhere.
Still unsure?
Contact us: we'll advise you for free based on your situation and reply within 24 hours.
Frequently Asked Questions
Can film be added to glazing that already has integrated solar control?
Not really needed: the integrated glazing already does that job. Film mostly earns its place on standard glazing, the kind that never got a solar treatment at manufacturing.
Does solar control film last as long as integrated glazing?
We estimate the film's lifespan at 10-15 years, against several decades for replaced glazing. In exchange, it costs a lot less upfront, and you can replace it without touching the window itself.
Why install the film on the inside rather than the outside?
Our collaborator makes that call every time, whatever the glazing size. Installed on the inside, the film is better shielded from weather and window cleaning, which makes it last longer.
Which solution should I choose if I'm replacing my windows anyway?
In that specific case, go straight for integrated solar control glazing rather than adding film to brand new glazing.
Have a window film project?
GET A QUOTE