Thermal insulation: You install double-glazed windows to avoid heat transfer in the glass. That way your HVAC technique doesn’t function as tricky to keep up the weather in your house, and also your energy costs go down. We also ensured that each integrated design could adequately in shape (see “Techniques”) https://energy-efficientinteriorl11098.fitnell.com/73280014/building-regulations-for-dummies