With the 5100 Duotherm® range, profiles accommodate a thermal break solution to offer perfect insulation. This series can also be used with thicker glazing for significantly superior sound insulation. For perfect harmony with the rest of the home, a wide range of colours is available (lacquered white and all shades on the RAL colour chart, anodised semi-gloss silver, gold, bronzalumic, 10 wood-look shades and two-tone available for the thermal break series).