We use Passivhaus as a tried & tested solution providing a range of proven approaches to deliver net zero ready new and existing buildings, optimised for a decarbonised grid and augmented for occupant health and well being.
Through Passivhaus we provide buildings with a high level of occupant comfort using very little energy for heating and cooling. We adopt a whole-building approach with clear, measured targets, focused on high-quality construction, certified through an exacting quality assurance process.
We can provide:
- design modelling using the Passive House Planning Package (PHPP).
- thermal insulation specification based on specific manufacturer thermal calculations.
- windows and doors specifications to achieve high levels of thermal performance.
- design and specification for an airtight and thermal bridge free building fabric.
- requirements for a mechanical ventilation system with highly efficient heat recovery.
As recommended by the Passivhaus certification body, the project Passivhaus certification has to be provided by a consultant other than the Passivhaus Designer, ideally employed directly by the Client.
In the age of a climate crisis, architects need to understand embodied carbon and design it out of all new buildings.
Buildings account for approx. 49% of the greenhouse gas emissions in the UK. They emit carbon in two ways: through the energy consumed in their day-to-day use (operational carbon); and in their construction and disposal (embodied carbon).
The Passivhaus methodology allows architects to measure and achieve the operational carbon net zero balance, so that the building’s energy consumption is reduced to the point where it can be covered by its own sustainable energy production.
The second component, the embodied carbon, is the total carbon emitted in producing a building’s materials, the transport and installation of those materials on site, and their disposal at end of life. We use specific tools like IMPACT or EC3, providing our partners with the latest evolution of the BIM analysis in terms of assessing and managing the carbon embodied by a building.
Following this process and based on our professional experience, we provide design recommendations allowing the reduction of a building's embodied carbon. In simple terms, our advice aligns with the below principles:
- Build less: consider retrofit or renovation, spatial efficiency, material re-use, multi-functional or shared spaces, simple design, etc.
- Build light: where possible reduce loads and spans, use light construction systems and materials.
- Build wise: consider materials life spans, use modular buildings and MMC, use sustainable materials, build flexible buildings that can be re-purposed, build with the end in mind using parts that can be easily disassembled and reused, compare design solutions with specific embodied carbon, etc.
- Build low-carbon: specify low-carbon, renewable, bio-based, re-used or recycled materials from responsible sources.
- Build collaboratively: encourage early collaboration, knowledge sharing, previous projects data analysis and implementation of lessons learnt.