I didn't even know what pipe lagging was until our site supervisor suggested it to me. :-)"acoustic pipe and duct lagging. Soundlag™ is a high-performance composite acoustic lagging product developed to reduce noise from pipes, valves, fan housings, and ductwork in commercial, industrial and domestic buildings."
6 Star Energy Rating is noted throughout our paperwork but I hadn't really taken on board what that meant. I realise that the idea is the our house would be more energy efficient and better insulated against hot and cold. It was just part of what would end up as our new family home but not a big part of our decision making process. We had added sound insulation to the theatre but that was simply to reduce sound transmission out to other rooms or the neighbors not about temperature insulation.