Passivhaus Architect

Joe Stuart
Portrait of Joe Stuart, founder of Warehome.
Drawing experience from the design and engineering industries, Joe has always been interested and excited by good architecture.
26 May
6
min read
Related articles
Passivhaus Architect
We are often approached to discuss the Passivhaus approach to designing a new home. Interestingly, we find that not all of the enquirers are fully versed in the process and its impact, so this article has been created to better explain what Passivhaus is.

What is Passivhaus?

Passivhaus, or Passive House, is a rigorous, voluntary standard for energy efficiency in a building, reducing its ecological footprint. It results in ultra-low energy buildings that require little energy for space heating or cooling. Developed in Germany in the late 1980s, the Passivhaus standard has become a benchmark for high-performance, energy-efficient building design worldwide.

Key Principles of Passivhaus

The Passivhaus standard is based on several key principles that together create a comfortable, energy-efficient, and sustainable living environment.

1. Thermal Insulation

A Passivhaus requires superior insulation to minimise heat loss. This means walls, roofs, and floors are insulated to a much higher standard than conventional buildings. High-performance insulation materials help maintain a consistent indoor temperature, reducing the need for additional heating or cooling.

2. Airtightness

Achieving airtightness is crucial in a Passivhaus. By preventing unwanted draughts and eliminating thermal bridges, airtight construction ensures that no warm air escapes and no cold air enters. This is measured through a blower door test, which quantifies the building's air leakage.

3. High-Performance Windows

Windows in a Passivhaus are typically triple-glazed and optimised to balance solar gain and heat loss. These windows help to trap heat from the sun while preventing thermal loss, contributing significantly to the home's overall energy efficiency.

4. Mechanical Ventilation with Heat Recovery (MVHR)

MVHR systems are a cornerstone of Passivhaus design. These systems provide continuous fresh air while recovering heat from the outgoing stale air, ensuring excellent indoor air quality and reducing the heating demand.

5. Thermal Bridge-Free Construction

Thermal bridges are weak points in the building envelope where heat can escape. Passivhaus design meticulously eliminates these bridges through careful planning and construction techniques, ensuring a uniform thermal envelope.

The Impact of Passivhaus Design

1. Energy Efficiency

A Passivhaus can reduce heating and cooling energy needs by up to 90% compared to conventional buildings. This significant reduction translates to lower energy bills and a smaller carbon footprint.

2. Comfort

Passivhaus buildings maintain a consistent indoor temperature and air quality, providing a comfortable living environment year-round. The elimination of draughts, cold spots, and overheating issues ensures optimal thermal comfort.

3. Sustainability

By drastically reducing energy consumption, Passivhaus buildings contribute to environmental sustainability. They minimise greenhouse gas emissions and reliance on fossil fuels, aligning with global efforts to combat climate change.

4. Long-Term Value

Investing in Passivhaus design can increase the long-term value of a property. With rising energy costs and growing awareness of environmental issues, energy-efficient homes are becoming more desirable in the property market.

Our Approach to Passivhaus Design

At Warehome, we are committed to creating sustainable, low-energy homes that meet the Passivhaus standard. Our approach integrates the core principles of Passivhaus with innovative design solutions to create homes that are not only energy-efficient but also aesthetically pleasing and functional.

1. Client-Centric Design

We start by understanding our clients' needs, preferences, and lifestyle. This ensures that the final design is tailored to their specific requirements, providing a home that is both comfortable and efficient.

2. Holistic Planning

Our design process considers the building as a whole system. We carefully plan every aspect of the building envelope, insulation, ventilation, and orientation to maximise energy efficiency and comfort.

3. Collaboration with Experts

We collaborate with experienced engineers, builders, and Passivhaus consultants to ensure that every project meets the rigorous standards of Passivhaus certification. This collaborative approach ensures the highest quality and performance in our designs.

Conclusion

Designing a Passivhaus home is not just about meeting a set of standards; it's about creating a living environment that enhances comfort, reduces energy consumption, and contributes to a sustainable future. At Warehome, we are passionate about delivering homes that embody these principles, providing our clients with beautiful, efficient, and sustainable spaces.

If you are considering building a Passivhaus home or want to learn more about how this approach can benefit you, we invite you to reach out to us. Let's embark on a journey to create a home that truly reflects your values and aspirations.

Haven't found what you're looking for?
We understand how complicated the self-build is, so we're working hard on gathering the latest information for you.

But if you feel like there's an area we haven't covered, please reach out today! 
Write to us today
Further information available here: