What does draught proofing mean?

What does draught proofing mean?

Draught proofing is finding and fixing draughts to make your home more comfortable and energy efficient. Draughts are like ventilation, in that both let fresh air into your home. Good ventilation helps reduce condensation and damp and can help cool down a hot house. Draughts, on the other hand, are uncontrolled – they let too much cold air in and waste too much heat. If you need ventilation, open a window.