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Quick Product Snapshot
Key Information at a Glance
Opening Style
Inward tilt-and-turn opening
Frame Material
Timber or aluminium-clad timber, depending on chosen Rationel range
Best Suited For
Upper floors, apartments, bedrooms, bathrooms and rooms needing secure ventilation
Glazing Options
Double or triple glazing with acoustic, solar-control, safety, security and privacy glass options
Energy Performance
Rationel tilt-and-turn windows can be specified with high-performance glazing for improved comfort and insulation
Security
Secure multi-function hardware with enhanced glazing and locking options available
Warranty
Rationel timber/aluminium tilt-and-turn windows are typically covered by a 10-year warranty, subject to product range and terms
Design & Options
Rationel windows are made bespoke, so the design can be built around the property rather than limited to a standard size or finish. The main choices are whether to use all-timber or aluminium-clad timber, which opening function suits the room, and which glass specification is needed for comfort, privacy, security and acoustic control.
✓ Choose timber for a natural finish, or aluminium-clad timber for a lower-maintenance exterior.
✓ More than 200 colour choices are available, with different internal and external colours possible on suitable ranges.
✓ Glazing options include SOUND, SOLAR, OBSCURE, safety, security, patterned and coloured glass.
✓ Double or triple glazing can be selected depending on thermal, acoustic and project requirements.
✓ Opening functions can be matched across the home, including side-hung, top-guided, side-guided, tilt-turn, fixed and shaped units.
Why choose RATIONEL Tilt & Turn Windows
Tilt-and-turn windows are ideal when you want a window that does more than simply open and close. The tilt position gives secure everyday ventilation, while the full inward opening makes cleaning and access easier. With Rationel’s timber or aluminium-clad timber construction, they feel premium as well as practical.
Key Features
Tilt and full opening
for flexible ventilation
Secure ventilation option
for safer airflow
Easy cleaning access
from inside the room
Premium timber finish
for a warmer finish
Performance & Comfort
The dual-function hardware gives excellent control over ventilation and access, while Rationel glazing options can improve thermal comfort, sound reduction and privacy. Aluminium-clad versions also reduce external maintenance while preserving the warmth of timber inside.
Energy Efficient
Triple-glazed ranges achieve U-values from 0.78 W/m²K.
Enhanced Security
Security hardware meets Secured by Design requirements.
Weather Resistance
Low-maintenance alu-clad option with 40-year life expectancy.
Acoustic Comfort
Triple glazing gives up to 42–43 dB Rw sound reduction.
Are RATIONEL tilt & turn windows right for your property?
Rationel tilt and turn windows are suited to rooms where flexibility is the priority. The tilt function gives secure ventilation, while the full inward opening makes cleaning and access easier from inside. They are especially useful for apartments, upper floors, bedrooms, bathrooms and home offices where a conventional outward-opening window may be less practical or harder to maintain.
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