Get ready for a massive deep talk into the ins and outs of how the people behind the scenes calculate the performance of a home. We sat down with Emilia Iacovino from Detail Green, who is not only a thermal assessor, but also a PHPP pro and an engineer with a passion for sustainability. We spoke about the differences in assessing a house under the national energy rating scheme, and using the passive house planning package, as well as her insights on how these systems can - and should be - improved. Spoiler alert - she is also currently getting her accreditation to become a passive house certifier, so I am sure this is not the last you will have heard from her on our podcast.