Glazed living spaces are beautiful, but in the summer, they can become unbearable.
Conservatories, orangeries, and skylight rooms often trap heat faster than the rest of the home, turning bright spaces into hotspots you can’t comfortably use.
The combination of overhead glazing and side glass on different elevations, means the sun heats the room from every angle as it moves from east to west.
Our specialist window films and knowledge are designed to dramatically slow the rate of heat build‑up, reduce glare, and help you reclaim the space you love, so you can sit near the glass without feeling cooked.
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.
The film itself is rarely the weak point. Issues are usually caused by installation errors such as contamination under the film, edges cut too tight to the gaskets, or corners lifting over time.
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 skylights can usually installed externally if their are no self-cleaning coatings on the glass.
Lean to conservatories usually have reflective films installed internally.
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.
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