Latest news from Durable 1: Heat & Glare

Prestige window film will change perceptions

18 August 2014

Window film has been around for a long time – since the 1960’s in America to be precise. At that time it was required to solve the issues of heat gain in skyscrapers. Fast forward to the UK and 2014 and the same solution is required but for other additional reasons as well.

Firstly it’s required due to the increase in glass expanses in buildings of all kind. In London modern architectural design has even resulted in glare issues for surrounding buildings.

Of course, you go back 50 years and the window film construction was metallic and the look was that of a mirror. Hard to believe but the mirror effect was considered a design feature at the time, but later was generally accepted to be an eye-sore.

Window film manufacturers have tried over the years to reduce the metallic mirror effect but metal was the most available and affective way of reflecting the sun’s rays. Then technology created another issue for metallic window films because they also reflect and block cellular and radio signals causing havoc with mobile phones and networks.

Durable has been in the window film application business for more than 40 years and in that time have been trusted with many of the UK’s most historic and iconic buildings. The simple fact was that old style window film, even the later films with reduced metal content, just did not look aesthetically pleasing in many buildings with a heritage.

Another trend happened in the last decade. The word ‘daylighting’ became a buzz in building architecture. The desire was for as much natural daylight as possible and tinted window films flew in the face of this fashion. In fact, Durable has been advising on this for some time having been aware of the importance of natural light in the work environment. For instance, a study undertaken in 2003 by Heschong Malone Group found that workers in a Call Centre, a pressurised environment where productivity is critical, performed 6% faster with natural light and a view. An earlier study by the same organisation found that a group of people trying to learn progressed 20% faster under the most natural daylight compared to those subjected to the least daylight.

Added to the accepted benefit of natural daylight to the workforce in a building are two issues allied to excessive transmission of sun through glazing. Productivity affected by heat gain and health issues, particularly eye strain, resulting from glare. The level of protection afforded by Prestige dramatically reduces these risks.

Having worked with window film giant 3M for four decades Durable were involved as the new Prestige film was developed. In Durable’s view Prestige is revolutionary because it performs as well as many of the old metallic based films and yet it has a very high visible light transmission capability, almost like clear glass. Prestige reflects more than 90% of Infrared rays and 59% of the sun’s total energy when measured at a 60⁰ angle (designed to keep heat and glare down when the sun is at its peak).

Prestige comprises co-extruded Polyethylene Terephthalate (PET) using a unique nanotechnology process, which was painstakingly developed over a long period to produce a material with high performance. As such it does not interfere with any radio signals and, as mentioned before, does not overtly change the external look of the glazing.

Prestige is not the lowest priced product available and this is where Durable’s expertise comes into its own. Durable is known for giving unbiased advice on window film applications of all kinds and to companies of all sizes. They are experienced in helping customer’s to evaluate the most prudent application taking into account additional factors such as the potential reduction in energy consumption and pay-back.

Plus, Durable offers a free initial consultation just to evaluate options. Call them on 0118 989 5200 to discuss.

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