Minimalist and heritage designs
Rationel Auraplus, Aura & Rational Forma timber windows
We supply and install two stunning timber window ranges from Rationel – the Rationel Aura/Auraplus, a contemporary minimalist timber window; and the Rationel Forma/Formaplus, a heritage timber window specifically developed for period installations.
Rational Forma & Rationel Aura
With its focus on sustainability, Rationel Windows combines sustainably sourced timber and outstanding craftsmanship in a choice of traditional and contemporary timber windows.
Rational Formaplus & Rationel Auraplus
Rationel have two signature styles, Rationel AURA/AURAPLUS and Rationel FORMA/FORMAPLUS. Both are available with double and triple glazing. The PLUS models feature timber frames with aluminium cladding, which opens up a new range of possibilities.
Internorm aluminium-clad timber-aluminium composite windows
The Rationel Aura Timber Window
Aura is a high-performance minimalist timber window. Drawing on iconic Scandinavian design its defined by simple clean lines in a highly engineered and thermally efficient timber window.
Available in a wide range of high performance finishes, this highly durable window is designed to stand up to all weathers, keeping your home warm and secure, while a beautiful natural woodgrain finish, brings a sense of perfect tranquillity to your home.
- Energy efficient with u-values of as low as 0.78W/m2K
- Double or triple-glazed options
- Ultra-secure Secured by Design options
- Excellent sound insultation of up to 42 dB
- Choice of more than 200 colours
- Minimum 40-year life expectancy
The Rationel Forma Timber Window
Beautifully styled, the Rationel Forma combines classical period designs and next-generation security, thermal efficiency, and weather sealing in a high-performance timber window, designed to be perfect for traditional and period installations.
This includes a classic angled glazing bead externally and detailed classically sculptured internal finish, making the Rationel Forma Timber Window the ideal heritage replacement window.
- Energy efficient with u-values of as low as 0.79W/m2K
- Double or triple-glazed options
- Optional glazing bars
- Ultra-secure Secured by Design options
- Excellent sound insultation of up to 42 dB
- Choice of more than 200 colours
- Minimum 40-year life expectancy
Extensive colour choice
Make a statement or play it cool with Rationel’s extensive choice of more than 200 colour options from classic whites, subtle greys and greens to bold and contemporary options.
Planning your next home improvement or self-build project?
Get in touch with the team today on 01295 270938
Get up close and personal (with our products!)
Visit our window and door design centre
Windows and doors are a big purchase, so making time to get it right is important. We think there’s no replacement for seeing windows and doors ‘in the flesh’, opening and closing them and picking out the fine detailing that brings the all-important finishing touches to your project.
With showrooms in Banbury and Beaconsfield, we bring our product ranges closer to you.
Our Window and Door Design Centre, is located 15 miles north of Oxford in Banbury and carries our complete product range.
