Energy efficiency is an important consideration when buying any new glazing product for your home. Here at John Knight glass we have carefully selected all of the products within our range to ensure all our aluminium sliding doors are made to the highest quality, all meeting and as is often the case far exceeding current building regulations.
All of our aluminium sliding doors are fitted with a thermal break within the aluminium frame preventing cold spots transferring from outside into your home. All glazing supplied within our doors are fitted with a warm edge spacer and filled with gas for added energy efficiency.
All of our doors achieve an A+ or higher for energy efficiency with our PanoramAH! PH54 door achieving an overall U value of 1.0W/m2,k.