How Energy Efficient is Finzone Frameless Glazing?
Part L of the Building Regulations demands certain U values for walls, floors, roofs and windows. This is to ensure the overall fabric of the building is efficient, reducing heat loss and thus saving energy. Windows must achieve a U value of 1.4W/m²K or lower (the lower the better).
Modern frameless glass tends to be manufactured to these standards, with some surpassing it and offering added thermal efficiency. It is also worth noting that where glazing is used for a roof or wall, it does not have to meet the U values for these elements as specified in Part L — it is sufficient if it meets the U values for windows, rooflights and doors.