Glazing Bars

As we use a slender steel section for our glazing bar, the reduction in thermal performance is minimal. We believe that traditional rooflights should be as close to the original design as possible even though modern building regulations mean that some changes are required. Retaining an original glazing bar is one way to keep the appearance of the Lumen roof light as it should be. Not only does it look more authentic than those which are stuck on or put inside the glass unit, it offers greater strength to the opening leaf, something which helped the Lumen rooflight achieve a deflection of less than 1mm during the performance testing of BS6375.