Professor John Tookey’s article in The Conversation offers timely and practical advice for keeping homes warmer this winter. His focus on insulation, draught-stopping, and smart use of heat is spot on – and his call to tackle draughts shines a light on something crucial: airtightness.

Air leakage is often the biggest reason homes feel cold, costing up to 70% of heating energy. By making airtightness part of the solution, we can go further by improving comfort, reducing mould and moisture, and helping heating systems work as they should. It’s a small shift that makes a big difference.