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7. Using distractions Awarded a UK patent, Senior’s PURe® range of energy-efficient aluminium windows and doors is the first on the UK market to benefit from an enhanced thermal barrier manufactured from expanded polyurethane foam (PUR). Traditionally used in cladding and insulation products, the innovative use of PUR as a thermal barrier in windows and doors gives the PURe ® range the potential to achieve U-values as low as 0.71W/m2 K when calculated as a commercial CEN standard window and 0.93W/m2 K when calculated as a CEN standard door. Making use of lines in photography is really a photographic composition technique used by many professional photographers, and for good reason. Lines - also referred as 'Leading Lines" - enables you to lead a persons vision to the point of interest and prevent a person's eye from wandering. Lines can put emphasis on distance or illustrate a relationship to foreground and background elements. Keep in mind that using lines incorrectly will surely have the alternative effect and lead the attention out of the a growing concern.