Upgraded insulation doesn’t improve the energy efficiency of your home? Wait. What? Researchers found that cavity wall insulation reduced gas consumption by 7 percent in the first year but over time consumption crept back up. Some are blaming ‘The Rebound Effect,’ claiming that people are using more gas and cancelling out their savings. Others are convinced higher standards for insulating leaky old homes are required for long-term savings. Behavior or execution, who is to blame for short-lived savings?
