Internorm Passivhaus Windows & Doors

Internorm offers the most comprehensive range of high-performance, triple-glazed windows, doors, and shading for Passivhaus builds, suitable for newbuild, deep retrofit and EnerPHit projects.

For us, it is not just about windows and doors. Internorm also offers essential external shading solutions to avoid solar gain.

So, if you are embarking on a Passivhaus or EnerPHit project, or understand the importance of creating an energy-efficient, sustainable home without going for certification, our Passivhaus experts are here to assist you and your architect to turn your vision into reality.

We have an in-house Passivhaus Designer, who is more than happy to discuss your project, and our experienced distribution partners can advise on the most suitable products for your Passivhaus or low energy project.

Passivhaus, also known as Passive House, is a rigorous, internationally recognised building standard focused on achieving exceptional levels of energy efficiency, comfort and sustainability. By dramatically reducing the energy required for heating and cooling, Passivhaus buildings are helping to shape the future of low-energy, high-performance architecture.

At Internorm, we specialise in premium triple-glazed windows and high-performance, airtight entrance doors designed to meet the demanding requirements of Passivhaus construction. Our market-leading window and door systems minimise heat loss, reduce thermal bridging and contribute to creating comfortable, draught-free indoor environments with stable temperatures throughout the year.

Passivhaus certification can be achieved in both residential and commercial developments, from self-build homes and renovations to large-scale architectural projects. To attain certification, buildings must meet strict performance criteria relating to energy consumption, airtightness and thermal comfort, making careful planning and specification essential from the earliest design stages.

With decades of experience in high-performance glazing, Internorm and our network of expert Distribution Partners can support you throughout your project, helping you select the most appropriate window and door solutions to achieve your sustainability goals.

THE FIVE CORE PRINCIPLES OF PASSIVHAUS:

• High levels of insulation
  The building envelope is highly insulated to minimise heat loss in winter and heat gain in summer.

• High-performance windows and doors
  Typically triple-glazed, thermally efficient windows and doors help maintain a comfortable indoor temperature and reduce energy demand.

• Airtight construction
  The building fabric is designed and constructed to be extremely airtight, preventing unwanted draughts and heat loss.

• Thermal bridge-free design
  Junctions between building elements are carefully designed to eliminate thermal bridges, which can lead to heat loss, condensation, and mould growth.

• Mechanical ventilation with heat recovery (MVHR)
  A balanced ventilation system continuously supplies fresh air while recovering heat from outgoing stale air, maintaining excellent indoor air quality with minimal energy loss.

Clever building design and orientation are not officially one of the five Passivhaus principles, but they are fundamental to achieving Passivhaus performance cost-effectively.

In practice, many Passivhaus designers consider orientation and passive solar design to be the starting point of a successful project. By harnessing natural sunlight, reducing overheating risk, and making the most of free solar energy, a well-designed building can achieve exceptional comfort and very low energy consumption.

Passivhaus windows play a vital role in creating comfortable, energy-efficient buildings. Designed to minimise heat loss while maximising natural light and solar gain, they contribute significantly to reducing a building's overall energy demand. Internorm's approved Passivhaus window systems combine outstanding thermal performance with premium design, delivering exceptional comfort, sustainability, and long-term value.

Here are the key advantages of choosing Internorm Passivhaus windows for your home or project:

• Energy Efficiency: This is achieved through high levels of insulation (in particular the frame), airtight construction, triple gaskets, and I-tec Glazing.

• Improved Comfort: Internorm high-performance windows help to maintain a comfortable indoor environment with stable temperatures and high indoor air quality. Through advanced insulation and airtight windows and doors, Passivhaus builds eliminate draughts and cold spots. Triple glazing will also help to contribute to a quieter, more comfortable space.

• Sustainability: Passivhaus buildings significantly reduce energy consumption, resulting in a far more sustainable space.  In addition, they often incorporate environmentally friendly materials and construction practices, further reducing the impact on the environment. This reduction in energy use helps to mitigate greenhouse gas emissions.

• Long-term Performance: Passivhaus buildings are designed to be extremely durable, making them resilient to even the harshest weather conditions. At Internorm, we are invested in creating windows and doors that stand the test of time, with minimal maintenance required for 30+ years.

• Air Quality: Passivhaus designs prioritise ventilation systems that continuously supply fresh air while filtering out pollutants and allergens. This results in a healthier environment that is comfortable, quieter and temperature regulated. Our triple glazed windows also help to reduce condensation, minimising the possibility of damp and draughts.

Effective shading is an essential consideration in Passivhaus design and should be incorporated from the earliest planning stages to minimise overheating, improve thermal comfort, and reduce energy consumption. Building orientation also plays a key role, with careful positioning of glazing and room layouts helping to maximise beneficial solar gain while limiting excessive summer heat.

As contemporary homes increasingly feature large areas of glazing, particularly on south-facing elevations, appropriate shading solutions become even more important.

External shading systems, such as Venetian blinds and roller shutters, offer the most effective protection by preventing solar heat from reaching the glass. Integrated blinds, internal shading, green shading through planting, and architectural elements such as brise soleil can also contribute to improved comfort and energy performance.

The most suitable shading strategy will depend on the building's design, orientation, and location. By considering shading as part of the overall design approach, homeowners and designers can create comfortable, energy-efficient spaces that perform optimally throughout the year.

Internorm offers a variety of effective shading options. Please speak to your local distribution partner for further information and advice.

Internorm UK is passionate about education and training to improve the standard of buildings in the UK.

If you are an architect, Passivhaus Designer or consultant, why not book one of our insightful ‘Windows & Doors for Passivhaus’ CPDs?

They are delivered either in-person or via Teams by a certified Passivhaus Trainer, and endorsed by the and the. This means that Passivhaus Designers will receive 2x credit points for attending the seminar.

To find out more about the learning objectives, or to book a convenient date for your team, please email: office@internorm.co.uk.