DID OUR CONCEPT VISION FOR THESE HOMES LIVE UP TO OUR EXPECTATIONS?

For a whole year after the families moved in, we accumulated the energy data provided by the residents. The results not only reaffirmed our approach to delivering these homes; they also genuinely impressed the post project management team, tasked with collating the energy data received from our participating homeowners.

Upon review of the energy data supplied, we established the cost of both the gas and electricity of each participant was considerably lower than that of a similar sized traditionally built home. The total energy bill for the families (per household) came in at less than £750.00 for the entire 12-month period. (Data taken from 2017 energy market costs).

It had worked and worked well. By incorporating this modern delivery method, we delivered high energy performing homes with much lower running costs. Significantly reducing the impact, the homes have on the environment.

Our air test results are in at our first official Passivhaus project at Leather Gardens:

In January 2023, as the first fix mechanical and electrical installation commences on our project Leather Gardens located in Newham, we have received reports from our Passivhaus Champion that all 21 of the flats we are currently building, are achieving air tightness results well above the minimum figures required to achieve Passivhaus accreditation.

To achieve accreditation a minimum air change rate of 0.6 aph (air changes per hour) is required.

Why is air testing so important?

To achieve Passivhaus accreditation it is necessary to conduct air-leakage tests at multiple points during construction. Airtightness is one of the key components required to reach the Passivhaus standard and without it certification could not be achieved.