What Has Changed?
A Passive House is built to an ultra-low energy standard that dramatically reduces the need for heating or cooling. Every component of the building envelope, especially the windows and doors, plays a vital role in achieving this.
Passive House-certified windows:
- Maximise natural light while minimising heat loss.
- Maintain consistent indoor temperatures all year round.
- Ensure airtight, draught-free performance.
- Contribute to reduced carbon emissions and lower energy bills.
Velfac & Rationel: Leading the Way in Performance and Design
Both Velfac and Rationel are recognised across Europe for producing high-performance, timber-aluminium windows and doors that perfectly balance form and function.
Velfac Passive Solutions
Maximise natural light while minimising heat loss
Velfac windows feature slim, contemporary sightlines combined with innovative composite construction, aluminium outside for durability, timber inside for warmth and comfort.
- Exceptional thermal insulation for Passive House standards.
- Modern, Scandinavian design suitable for residential and commercial projects.
- Built for longevity with minimal maintenance requirements.
- Available in a wide choice of colours, glazing options, and configurations.
Rationel Passive Solutions
Rationel windows and doors combine sustainable craftsmanship with cutting-edge performance, achieving impressive energy ratings suitable for Passive House design
- Double and triple-glazed systems tailored for ultra-low U-values.
- Robust composite frames for excellent durability and weather resistance.
- Elegant, timeless styling that complements both traditional and contemporary homes.
- Designed for natural light, comfort, and energy balance.
Why Choose Safe-Guard for Passive House Glazing?
Future-Ready, Energy-Efficient Living
With over 25 years’ experience in glazing and installation, we understand what it takes to deliver precision-engineered Passive House performance. From design consultation to final fitting, our expert team ensures every installation meets exacting efficiency and quality standards.
- Fully trained and certified installers
- Products tested to Passive House performance criteria
- Tailored advice for architects, self-builders, and developers
- Full compliance with current Building Regulations Part L
- Comprehensive guarantees for peace of mind
Choosing Passive House-certified Velfac or Rationel products doesn’t just future-proof your home it helps reduce your carbon footprint, lower your energy costs, and create a comfortable, quiet environment year-round.