Horizontal Sliders are a flexible and slimline Secondary Glazing method that is accessible with a combination of two to five panels, they incorporate twin brush seals that deliver the best possible thermal and acoustic insulation. To deliver the best possible thermal and acoustic insulation, we put in Aluminium secondary Glazing. https://pault073xmy6.bcbloggers.com/31348172/the-fact-about-secondary-glazing-that-no-one-is-suggesting