How to reduce heat loss through draughts?
It is important to understand how energy hungry draughts really are.
Draughts are nothing more that air moving by the means of convection. Typically they are caused by cold air having to replace warm air. As we all learnt at school warm air rises. Before we had magnificent men in their flying machines we had lunatics in hot air balloons. Warm (or hot) air is less dense than cold air so it travels up the different temperature that exists in layers of air. As folk heat their homes the warm air rises to the top of the room or top of the building and seeks to escape. If it can escape it will – the laws of physics permanently and perfectly seek to equalise internal temperature to external temperature. Another law of physics also states that warm always moves to cold and never the other way around. So if heat escapes through your loft hatch pillow it must be replaced by cold air being sucked in at the bottom of the house. This is a perfect draught that will result in hot air being blown out of the house as well as hot air being sucked out of the house.
Solution – bung up all the exit points of warm air from your home. Critically it is vital to work from the top down. If you have ceiling lights – place an upside down type flower pot insulation cup over each fitting. If your loft hatch is either uninsulated or poorly insulated bung that up as well. remember gaps as little as 1 mm are fatal to insulation performance. Don’t’ look down to source draughts – look up. It’s the heat escaping from the top that is sucking in cold air from the bottom
Bung up all exit points to eliminate draughts with a loft hatch insulation pillow. Simple practical measures should be deployed. These will save you money, make your home warmer and cosier and shall definitely positively impact on climate change by reducing your carbon footprint (emissions).