Passivhaus Certification
We are one of the few UK-based companies that can certify buildings to the Passivhaus standard on behalf of the Passivhaus Institut, Germany.
We have been lucky enough to certify a number of projects, each of which represents a substantial input from everyone involved, creating wonderful pioneering buildings.
We have certified: Denby Dale Passivhaus, Dissability Essex, Ranulf Road, Hunters Moon, Interserve offices, Oakmeadow, Bushbury & Montgomery primary schools.
Up and coming are: Ford Farm social housing estate, John O’Sullivan house, Wourcester vicarages.
Ph Certification process
retrofit certification: EnerPHit
The Passivhaus Retrofit standard “EnerPHit” is now available for us to certify against for renovation/retrofit projects.
The defining document can be found on the Institute website (pdf), but in short requires an air leakage of less than 1.0 achr@50Pa rather than 0.6, and an energy consumption of less than 25 kWh/m2 rather than 15.
We are keen to certify to the EnerPHit standard and are happy to advise on what would be necessary to meet this important new target – after all, even if we fix all the new houses to Passivhaus, there’s still the odd 23.99999 million which need some attention….
