While the roof is the most critical area to treat, the side windows of your conservatory or orangery plays a major role in heat gain throughout the day.
From the low morning sun in the east to the intense evening sun in the west, every elevation contributes to the “glass box” effect, steadily heating the room long after the roof has been treated.
Addressing both the roof and the side glazing creates a far more effective cooling strategy, dramatically slowing heat build‑up and restoring comfort across the entire space.
Side glazing is often easier to access, which means the film can be installed externally, the most effective position for heat rejection. External films stop more solar energy before it enters the room, and because they don’t need to be as dark as roof films, they maintain excellent natural light levels.
The result is a cooler, brighter, more balanced living environment.
Each film in this collection is engineered to manage heat gain without compromising the look and feel of your home.
A premium, near‑invisible film that targets near‑infrared heat while keeping the glass virtually unchanged in appearance.
Excellent heat rejection
Minimal impact on light levels
No noticeable increase in reflectivity
Ideal if you want maximum comfort with a barely‑there aesthetic.
Also engineered to select near‑infrared heat, but with additional light reduction for even stronger cooling performance.
Higher heat rejection
Non reflective appearance
A popular choice for homes seeking comfort without a mirrored look
This film strikes a beautiful balance between performance and subtlety.
A dependable, cost‑effective film that delivers solid heat and glare reduction.
Good all‑round performance
Moderate reflectivity for improved solar control
Budget‑friendly without feeling like a compromise
A smart choice when you want meaningful heat reduction at a more accessible price.
Heritage of conservatory window films
From the earliest glasshouses and Victorian conservatories, people have always loved the idea of a room filled with daylight. The reality has never been quite as gentle. As soon as large areas of glass were introduced, heat gain and glare quickly became intolerable, turning beautiful spaces into rooms that could only be used at certain times of day or certain months of the year. Homeowners tried blinds, curtains, roof sails, and every imaginable workaround, but each one blocked the view or changed the character of the structure. Modern window films are the natural continuation of this long story. They allow the architecture to stay exactly as intended while finally bringing comfort and control to a problem that has existed since the first glass rooms were built.
Internal films sit after the heat has already entered the glazing system. By the time the film absorbs or reflects the energy, much of the heat has already passed into the room. External films stop the energy before it enters, which is why they deliver stronger heat rejection and better comfort.
Most conservatory roofs cannot safely support the time and weight required for installers to work on them. Access equipment is often limited, and prolonged time on the roof can risk damage to glazing bars, seals, and decorative caps. Internal films avoid these structural risks entirely.
High‑reflectivity internal films use a metallic reflective layer to push solar energy back out through the glazing. This boosts performance from the inside and provides strong heat rejection without needing to step on the roof. It’s the safest and most practical solution for many conservatories.
Side glazing is easy and safe to access, so external films can be applied where they perform best. Modern spectrally selective films, such as 3M Prestige Exterior, provide excellent heat rejection without the mirrored look and without significantly reducing natural light.
Yes. It blocks 99.9 per cent of UV, the main cause of fading.
Yes. Prestige Exterior is one of the only films warrantied for sloped and horizontal glass.
Contact Our Specialists
For an immediate call back, please phone
01256 345580.
Our receptionist will gladly schedule a consultation for you.
For a more detailed and personalised call, please use the form below. By telling us about your project in advance, our specialists can prepare tailored advice. We will call you back at your chosen time.
