Why is Air Tightness so important?
A conventionally built house ‘leaks’ so much air that it changes it’s volume of air 4-7 times/ hour. You then have to replace that ‘escaped’ warm air with more heated air: Hence high fuel bills. If you seal the house and control the number of air changes, then you manage the heating much more efficiently, your heating bills are reduced. It is now accepted that this is one of the most significant elements is constructing a Low Energy House.
