Our 28mm sealed units consist of two 4mm panes of glass with a 20mm air gap incorporating a warm edge spacer bar, which is far more thermally efficient than the aluminium bars typically found in competitor’s windows. This is because aluminium is an efficient conductor of hot and cold temperatures which can contribute to a sealed unit breakdown. The 28mm sealed unit also has soundproofing benefits, perfect for anyone living on a main road or busy street.
In order to comply with part ‘L’ of building regulations, the glass we use in our sealed units features Planibel A (LOW-E) glass. This glass has a thin metal coating, designed to reflect the heat back in to the room whilst still allowing the sun’s heat to pass through.
The glazing we supply complies to BS EN1279-2. This means our sealed units have been independently tested for moisture absorption which can lead to sealed unit breakdowns such as steam or condensation build up inside the sealed unit.