Solar control · TSER 80%

The headline performance figure. 80% of incident solar energy rejected at the glass plane — reflected, absorbed, and re-radiated outward. Once applied, the control is permanent and passive: no setpoints, no user interface, no software.

Glare control · ~40%

Visible-glare reduction on bright days. Particularly noticeable for screen-based work near south-facing windows. The film tints visible glare without darkening the room — preserving daylight while taking the discomfort out of bright-day occupancy.

UV control · 99% rejection

Equivalent to SPF 500+ at the glass plane. Eliminates the dominant cause of fabric, artwork, and floor-finish fade. The UV control is wavelength-targeted — the ceramic particles absorb UV specifically while transmitting visible light.

Daylight transmission · 70% VLT

Visible light transmission stays at 70% — the room does not darken. Compare to a closed roller blind at 0% VLT or a heavy curtain at 5–15%. The film looks like a faint tint at an angle, barely perceptible head-on.

Exterior appearance control

Exterior reflectivity ~10% — within a few percentage points of untreated glass. No mirror effect from outside. The film is invisible to a passer-by, which is what makes it appropriate for listed buildings and conservation areas where exterior visual change isn't permitted.

Winter U-value bonus

A small bonus during heating season: the film acts as a low-emissivity coating, marginally improving the glazing U-value by around 5%. Not the headline benefit but a worthwhile shoulder gain that comes free with the solar control story.

Per-pane application

Applied pane-by-pane, so different panes in the same property can receive different films. South-facing windows might take Premium Ceramic; non-visible rear elevations might take Reflective Silver. The "control system" is the specification — chosen once at install, permanent thereafter.

No degradation control loop

Spectrophotometer measurements at 10 years show solar performance within ~1% of original spec. There is no degradation curve to monitor and no replacement cycle to schedule within the 12-year warranty period — the film holds its performance for 20+ years in normal use.

Combined with active controls

The film is the passive load-reduction layer. Active cooling, active shading, MVHR humidity control, and smart-home thermostats all sit downstream of the film's solar-rejection contribution. Active systems can be smaller and run less because the film has done its work first.

1 · Premium Ceramic film

~50-micron polyester carrier with nanoceramic IR-absorbing particles, UV inhibitor layer, scratch-resistant top coat, and pressure-sensitive adhesive on the glass side. Supplied on a release liner, cut to size on site. Architectural-grade specification suitable for residential, commercial, and listed-building applications.

2 · Slip solution & squeegee

Mild detergent-based slip solution allows the film to be positioned on the wet glass and then squeegeed flat — a technique that eliminates bubbles and ensures uniform adhesion. Specialist squeegees with hard and soft edges work the trapped solution out to the edge of the film over the curing period.

3 · Glass preparation

A two-stage glass clean before application — pre-wash with mild detergent, then a final scrape and final clean with deionised water and a lint-free cloth. Any contamination or particulate left on the glass becomes a permanent visible inclusion under the film. Half the install time goes into the prep.

4 · Edge sealant (optional)

For glazing exposed to direct rain or driving wind through open windows, a thin silicone edge bead seals the film perimeter to the glass. Standard for north-facing balcony doors and any glazing where the inside face occasionally sees water. Invisible after curing.

5 · Cure liner

The film cures fully over 7–30 days as the trapped slip solution evaporates through the polyester. During cure, the film may show small haze patches that fully disappear once dry. No homeowner action required — just don't clean the windows during the cure period.

6 · Warranty documentation

12-year manufacturer warranty registered against the installation address and the homeowner's name. Covers delamination, bubbling, discolouration, and film failure under normal residential or commercial use. CleverBloom retains a copy and handles warranty claims if anything ever occurs.

12-year manufacturer warranty

Covers delamination, bubbling, discolouration, and film failure under normal residential or commercial use. Registered to the installation address. CleverBloom handles warranty claims if anything ever occurs. Both parts and labour covered.

20+ year expected life

Modern nanoceramic films have a real-world life of two to three decades when installed on the inside face of glazing. The polyester carrier and ceramic particles are inherently stable; UV degradation is minimal because the film itself blocks 99% of incoming UV. Most installs visibly outlive the warranty period.

Cleaning

After the 30-day cure, treat the filmed pane like any other window. Any non-abrasive glass cleaner and a soft cloth. Avoid scouring pads, blade scrapers, ammonia-based cleaners (over many years they can micro-craze the top coat), and pressure washers from outside (no impact on the film, but excessive impact on sealed units in general).

No degradation expected

Unlike films from earlier generations, Premium Ceramic doesn't fade, doesn't purple, doesn't lose its IR-rejection performance over time. Spectrophotometer measurements at 10 years show solar performance within ~1% of original spec.

Reversible if needed

If a future homeowner ever wants to remove the film, it strips off the glass with controlled heat and a putty knife in around 30 minutes per pane. No residue, no glass damage. Returns the property to original condition — useful in listed-building scenarios where reversibility was the basis for consent.

Insurance recognition

High-value contents insurers (art, antiques, furniture) increasingly recognise Premium Ceramic film as a contributory protection measure against UV-induced fade. The installation certificate and 12-year warranty documentation satisfy most underwriters' documentation requirements.