Rationel

Traditional Style Timber/ Aluminium Windows - Rationel Forma Plus

The design of FORMAPLUS is slim and traditional,available in a range of country-style designs with various configurations of glazing bars.
The slim design also allows maximum natural light into the home.

Made from timber, with external aluminium cladding, Rationel FORMAPLUS offers all the benefits of natural wood on the inside and easy maintenance on the outside. The range is available with security ironmongery as standard, and are suitable for Passivhaus buildings.

Opening Types

FIXED LIGHT WINDOWS

Fixed lights cannot be opened, but have a more slim design, which lets in more light. The window can be delivered with a fresh-air vent so you are able to get ventilation even though the window cannot open.

TOP GUIDED WINDOW

The top guided windows are very popular in new build and refurbishing, especially in modern housing. The window is outward opening and simple to operate. When you open the window, the top of the sash slides downwards as the bottom opens outwards.

SIDE HUNG WINDOWS

Side hung windows are often used in both new build and refurbishing. The side hung window is outward opening and with a visible hinge in either the right or left side. The window is especially ideal as an emergency exit.

TOP SWING WINDOWS

A top swing window is an outward opening window, which in principle functions as a top guided window. However, with a top swing window it is possible to rotate the sash through 180 degrees on a horizontal axis outside the frame. This enables easy cleaning of the external glass face from

SIDE SWING WINDOWS

A side swing window is a modern outward opening window where the frame can be turned approx. 160° in the horizontal plane. The window is suited for smaller windows up to 1000 mm in frame width and as the side swing window can be turned 160° around outside

TILT & TURN WINDOWS

A tilt and turn window is an inward opening window with both a tilt and a turn function. The window can tilt at the top for daily ventilation and open inwards when the window has to be cleaned.

WINDOWS IN ALL SHAPES

At Rationel, we manufacture windows in various different shapes, so you need not only think 'square' when you are looking for new windows. For example, if you need curved, round or triangular windows, then we can also supply them. Depending on your needs, the windows can be delivered with opening sashes or with a fixed frame that cannot be opened.
If you have specific needs in relation to the shape of your windows, then contact one of our agents to learn more about the possibility of a customized solution. At Rationel, we are not so square.

ROUND WINDOWS

CURVED WINDOWS

ANGLED WINDOWS

COLOURS

STANDARD RAL COLOURS
Rationel FORMA and Rationel FORMAPLUS windows and doors are available in one standard colour on both the inside and outside of the frame. It is possible to have a split colour solution on Rationel FORMAPLUS, where you are able to have a different colour on the outside to what you choose for the inside. If you require a colour that is not listed within our Standard colour range above, we are able to offer any colour from the RAL classic range; these will be subject to additional costs and lead times.

The colours shown cannot be reproduced exactly:

WHITE RAL 9010

CREAM WHITE RAL 9001

LIGHT GREY RAL 7035

SILVER GREY RAL 7001

SLATE GREY RAL 7015

ANTHRACITE GREY RAL 7016

MID GREY RAL 7042

BLACK RAL 9005

DARK BROWN RAL 8017

OLIVE GREEN RAL 6003

NAVY BLUE RAL 5013

ROWANBERRY RAL 3011

PEBBLE GREY RAL 7032

BEIGE RAL 1001

BEIGE GREY RAL 7006

YELLOW RAL 1018

DARK GREEN RAL 6007

BLUE BLACK RAL 5008

CLEAR LACQUER INTERNAL ONLY

GRANITE COLOURS
The colours shown cannot be reproduced exactly:

WHITE SAA10F SABLE

GRIS 2150 SABLE

GRIS 2400 SABLE

GRIS 2900 SABLE

NOIR 2100 SABLE

NOIR 900 SABLE

MODERN STYLE

TRADITIONAL STYLE

ENTRANCE/ PANNELED DOORS

TERRACE DOORS

WINDOW DOORS

SLIDING PATIO DOORS

Traditional Style Timber/ Aluminium Windows - Rationel Forma Plus

Rationel Forma Plus product details

Two gaskets

Fully adjustable ironmongery

Option of trickle vent

Security ironmongery and option of glazing bar (31 mm)

Info & Downloads