Performance

As a tenant who may not have past experience in choosing new windows, it may be confusing to try to work out what performance standards really mean. It is important to see through this minefield of information and focus on the following:

BS EN 12608:2003 Class A and BS7950 Standard for Enhanced Security.

These are the two standards that you need to look out for. If PVCu windows and doors do not meet these standards, stay clear of them!

There are various performance criteria that your new windows must fulfill. These are covered by the building regulations and include:

Part A – Structure (for bay windows)

Part B – Egress

Part F – Ventilation

Park K – Protection from collision

Part L – Conservation of fuel and power

Part M – Disabled access

Part N – Safety glazing

and for Scotland

Part J  – Conservation of fuel and power

Part K – Ventilation of buildings

For details of what the building regulations require look in the Information Library section of this website

Choosing windows that comply fully with these building regulations means your new windows will make your home safer and warmer, whilst still providing decent ventilation.