Traditional style
Designed to complement traditional Irish architecture, look no further than FORMA and FORMAPLUS. Beautifully styled, these designs bring the classic into the current day to create a finished look that’s simply transformational. It’s sheer sophistication, reimagined.
Both options work to bring a softer line to your windows, helping your project to blend more seamlessly into its surroundings. Available with or without glazing bars which particularly suits this style of windows.


Classic profile on the inside

Classic style glazing bars

Classic angled glazing bead
Rationel FORMA

Triple glazed
– Best performance: 0.78 W/m2 K U-value
– 42 dB Rw sound reduction

Double glazed
– 40 dB Rw sound reduction
Key features
– Timber frame
– 60-year life expectancy
– Over 200 colours available
Rationel FORMAPLUS

Triple glazed
– 42 dB Rw sound reduction

Double glazed
– 40 dB Rw sound reduction
Key features
Aluminium-clad timber frame
– Low-maintenance
– 83-year life expectancy
– Over 200 colours available, with no extra charge for dual colour*
*When choosing from our standard colour range
Timber
Our timber windows consist of solid wood from the very innermost structure through to the external, resulting in excellent thermal and acoustic performance, combined with easy maintenance. It is available in either double or triple glazing, and has been designed to exhibit the very best in energy efficiency.
Rationel FORMA is a timber product.
Aluminium clad timber
Boasting all the benefits of all-timber windows using the same solid timber structure, the external aluminium cladding offers exceptional durability on the outside, with easy maintenance on the inside. The addition of aluminium cladding means a far increased life expectancy of your windows – by as much as 20+ years. What’s more, the extremely durable nature of this style ensures it will withstand even the harshest of weather conditions with ease.
Colours
*When choosing from our standard colour range

RAL 9010
Pure white

RAL 9001
Creme

RAL 9003
Signal white

RAL 9002
Grey white

RAL 7035
Light grey

RAL 7044
Silk grey

RAL 7038
Agate grey

RAL 9007
Grey aluminium

RAL 7030
Stone grey

RAL 7037
Dusty grey

RAL 7001
Silver grey

RAL 7015
Slate grey

RAL 7012
Bastalt grey

RAL 7016
Anthracite grey

RAL 7013
Brown grey

RAL 1035
Pearl beige

RAL 7032
Pebble grey

RAL 7003
Moss grey

RAL 7022
Umbra grey

RAL 6003
Olive green

RAL 8017
Chocolate

RAL 8019
Grey brown

RAL 7024
Graphire grey

RAL 9004
Signal black

RAL 7021
Black grey

RAL 8022
Black brown

RAL 9005
Jet black
Obscure panes

Satin

Cotswold

Listral D

Silvit

Crepi

Small Cathedral
Glazing
Frosted or patterned glass
OBSCURE
Acoustic control
SOUND
Solar control
SOLAR
Coloured glass
FACADE
Minimise the risk of accidents
SAFETY
Extra-strong Rationel SAFETY glass is designed to break safely in order to minimise risk of injury, and has been tested and marked according to several national and European standards.
Please contact us for more information.