EnerPHit: The Ultimate Guide to Passivhaus Standard Retrofit

this retrofit home met enerPHit plus standards
(Image credit: Zetland road by Rick McCullagh)

You’re unlikely to have heard of EnerPHit unless you’ve got a special interest in energy efficient homes, but you may already be familiar with the idea of Passivhaus

However, where Passivhaus standards are only applied to new builds, EnerPHit looks to meet similarly high levels of energy efficiency when retrofitting an existing property — whether you’re renovating the fabric of the building, remodelling or extending. 

Paul Testa

Architect Paul is the director of HEM Architects and a specialist in low-energy design. HEM Architects are well-versed in designing sustainable, energy-efficient new builds and extension schemes. He has also just completed an eco retrofit to his family home.

He taught the technology course for the MArch in Architecture at Sheffield University, and is a tutor for the Sustainable Architectural Studies Masters course.