Energy-rated windows from Profile 22 can significantly reduce your annual heating bills and as the price of fuel rises, your savings will grow – and they’ll not only save you money, they’ll also help increase the value of your home, too.
Current Building Regulations for all types of window installation require’ a minimum ‘C’; rating, which can be increased to ‘A’ – the most energy-efficient product – where no heat loss occurs.
Profile 22 windows and doors are energy-rated under the same system that is given to household appliances such as washing machines and fridges, which are graded between A and G, depending on their environmental efficiency – ‘A’ being the best and most efficient.
Rating Value (A-G)
This is the most recognisable part of the label, which clearly shows the product’s energy efficiency in coloured bands, from the dark green A (the highest rating) through to the dark red G (the lowest and least energy-efficient). Building regulations currently stipulate a minimum requirement of C (or a U-value of 1.6 W/m2K).
Thermal Transmittance (U-value)
This indicates the amount of heat energy transmitted through a door or window, set out in watts per metre² per degree Kelvin. This is a contributing factor to the Rating Value above. The lower the U-value, the less energy is lost, and the more efficient and economical the unit.
Solar Factor (G-value)
This represents the amount of solar energy that is gained through the window. The higher the value, the more energy gained and the greater the saving.
Effective Air Leakage (L-value)
This is the amount of air that permeates through the window weather seals, also a contributing factor to the Rating Value above. Modern high performance windows will have a low air leakage rate
Few things will make a greater difference to the warmth, security and look of your home. Ask your installer about installing Profile 22 high-performance, energy saving windows.