Energy use and associated carbon dioxide emissions are a large contributor to the UK's greenhouse gas emissions and global warming. Homes and non-domestic buildings are together responsible for around 37% of the UK’s greenhouse gas emissions. At Taylor Kay Architecture we create buildings that consume minimal energy during their life, leading to lower running costs but also create a healthy and comfortable living environment. We are strong believers of the Passivhaus Standard as the most effective route to achieve this.
A Passivhaus is a building where comfort is achieved in a cost effective manner with around an 80% energy consumption reduction compared with a conventional building. This is achieved through a fabric first approach with a highly insulated and airtight building envelope and efficient heat recovery ventilation system. Quality assurance is provided by certification through organisations approved by the Passivhaus Institute in Germany. As well as providing high levels of comfort and exceptional indoor air quality, Passivhaus buildings have been proven to perform as designed by years of post occupancy monitoring across Europe.
The Passivhaus standard is applicable to both new and existing buildings, however for the retrofit of existing buildings the slightly less onerous EnerPHit Standard is often more suitable due to restrictions with a set building form and orientation. For both standards the requirements below need to be verified in the PHPP software (PassivHaus Planning Package). We conuduct our own in house Passivhaus analysis using PHPP, thermal bridging calculations and hygrothermal simulation using the Wufi Pro software.
The refurbishment of homes and buildings is one of the greatest challenges of the future. The majority of our existing building stock requires some level of retrofit to enable us to live and work more sustainably. The majority of our existing buildings will still be standing in 2050, meaning that we need to undertake a massive programme of green retrofit and energy demand reduction if we are to reach the 80% carbon dioxide reduction target asset out by the Kyoto protocol to prevent run away climate change.
We try to include retrofit measures in all of our projects. The extension and refurbishment of buildings will often present an opportunity to improve the energy performance of the existing building at the same time, either through building fabric or services upgrades. Retrofit can be complicated. It is important to know what should be done, when and how. Often the order that retrofit measures are installed will affect the options for future measures. The interaction of the measures with the existing building also needs to be carefully considered, especially when upgrading solid walls and improving airtightness (reducing draughts). With all retrofit projects we produce a whole house strategy or retrofit plan, so even if the work is undertaken in phases the installation of future measures are not compromised.
In 2014 Ruairi was one of the first people to complete the CoRE Diploma in Retrofit Coordination, and is one of the few people in the country who currently hold this qualification.
Space Heating: <15 kWh/m2 /yr
Primary Energy: <120 kWh/m2 /yr
Airtightness: <0.6 ach/hr @ 50pa
Space Heating: <25 kWh/m2 /yr
Primary Energy: <120 kWh/m2 /yr
Airtightness: <1 ach/hr @ 50pa