Design Buy Build Issue 38 2019 | Page 56

Sun-X Window Film John Bell & Croyden, a prestigious pharmaceutical company with a central London outlet, called upon fellow Royal Warranty holder Sun-X (UK) Ltd, to help problems caused by sunlight on their large picture windows. Their display stock was being faded by the sun, and the customers and staff were suffering from solar heat gain. Sun-X installed their Vista61 ‘clearview’ solar window film, eliminating 99.9% of UV radiation, 49% of solar energy, in a clear colour with minimal reflection so the view in from the street was not impeded. The installation was carried out quickly and efficiently, by Sun-X’s own highly skilled and experienced personnel, during opening hours without disrupting running of the store. Low-E clear window film Heating, cooling and ventilation systems are responsible for over 50% of carbon emissions in non-domestic buildings and are largely impacted by the performance of the building’s glazing. Traditionally, window films are used to reduce summer cooling requirements. In addition to the benefits of the aforementioned film, the Sun-X MT70E Low-E film also reduces heat loss in winter, providing a true “all-season” solution that can significantly reduce total building energy consumption, often by more than 10%. The Low-E coating reflects over 90% of radiant energy back to its source, reducing the glazing’s U-Value from 5.8 to as low as 3.3, an improvement of up to 44%. This effectively upgrades the insulating performance of a single pane window to close to double pane, and double pane to close to triple pane. Whilst the film reflects solar energy, it absorbs very little, which has the added benefit of minimising thermal stress to the glass, and reflecting air-conditioned air back into the room, rather than being lost through the glass. 56 Return on investment can be obtained in as little as three years, with the film then effectively earning money by lowering fuel bills throughout its expected lifespan of at least 15 years. It will also help companies meet their carbon reduction commitments, and landlords meet minimum energy efficiency standards (MEES) for commercial or residential lets. 01243 826441 www.sun-x.co.uk @sunxuk