What is energy efficiency?
Here at the Rose Collection, we pride ourselves on why our sash windows are different from standard uPVC sash windows, including their high energy efficiency.
Energy efficiency is about saving energy and money. An energy-efficient product will maximise the effects of the amount of energy it uses. This is better for the environment, and better for your finances.
An energy-efficient window will keep heat in a home for longer and reduce the amount of energy you need to use to keep your home warm. This can save you a lot of money on the cost of your heating bills in the long term.
Energy ratings: what you need to know
The energy rating of a window depends on three things: how much heat it captures from the sun, how much of that heat is retained, and how much heat is lost through draughts and cold spots.
On the WER (window energy rating scale) A red ‘G’ rated window is the least energy efficient, whilst a green ‘A’ rated window is the most energy efficient.
Window Energy Ratings
All new window installations must comply with requirements laid out in the Building Regulations. These regulations state that any replacement window has to achieve energy ratings of C or above.
Windows are given an energy rating depending on how much heat they capture from the sun, how much of that heat is retained, and how much heat is lost through draughts and cold spots. Once these results are determined the window is given an energy rating. This is displayed in a similar way to the ‘rainbow scale’ which is used to evaluate the efficiency of white goods.
A ‘G’ rated window (red) is the least energy efficient, and an ‘A’ rated window (green) is the most energy efficient.
Providing your home with excellent thermal efficiency
Choosing energy rated windows that can achieve a C and above will help to reduce the amount of heat lost through your windows. This keeps your home warmer during the colder months and can save you money on your energy bills. C, B and A rated windows will also help reduce draughts and cold spots which can lead to unsightly damp patches.
Charisma Rose and Heritage Rose uPVC sash windows can be supplied with an energy rating of C, B or A. This means that not only are Charisma Rose and Heritage Rose fully compliant with the current Building Regulations, they also provide your home with excellent thermal insulation.