Rationel FORMAPLUS
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 Passiv Haus buildings. With high performance triple-glazing or double-glazing, FORMA windows achieve U values as low as 0.79, which is ideal for low energy buildings and Passive House construction.


Product Details

Two gaskets

Fully adjustable ironmongery

Option of trickle vent

Security ironmongery and option of glazing bar (25 mm)
Opening Types

Top Guided
Top Guided windows are a simple, elegant and user-friendly design. Opening is controlled by tracks and slides. When opening the window the top of the sash slides downwards as the bottom of the sash opens outwards. Adjustable friction ironmongery allows an almost infinite choice of open positions.

Top Swing
In everyday operation the fully reversible window functions as a Top Guided window. However it is possible to turn the sash through 170 degrees to clean the glass from the inside.

Fixed Light
Fixed Light windows are ideal wherever maximum internal light and solar heat gain is required. Fixed Lights can be fitted with trickle vents for ventilation.

Side Guided
Side Guided windows are controlled by tracks and slides that allow the window to be fixed in any open position. However, when opened, the hinge side of the sash moves toward the middle to create an opening that allows the glass to be cleaned from the inside.

Side Hung
Side Hung windows are controlled with tracks and slides. On windows over 424 mm wide and 530mm high, the handle controlled friction brake allows the window to be fixed in any open position.
Colours
When choosing windows and doors from Rationel, it is possible to enhance the appearance and character of your house through your choice of colour. Our standard colours suit the majority of architectural styles and traditions in the United Kingdom. We also offer a special range of colours, which you can use to highlight particular features of your home.
Standard RAL Colours
The colours shown cannot be reproduced exactly.

Pure White
RAL 9010

Cream
RAL 9001

Signal White
RAL 9003

Yellow
RAL 9002

Light Grey
RAL 7035

Silk Grey
RAL 7044

Agate Grey
RAL 7038

Grey Aluminium
RAL 9007

Stone Grey
RAL 7030

Dusty Grey
RAL 7037

Silver Grey
RAL 7001

Slate Grey
RAL 7015

Basalt Grey
RAL 7012

Anthracite Grey
RAL 7016

Brown Grey
RAL 7013

Pearl Beige
RAL 1035

Pebble Grey
RAL 7006

Beige Grey
RAL 7006

Umbra Grey
RAL 7022

Olive Green
RAL 6003

Fir Green
RAL 8017

Chocolate
RAL 1035

Grey Brown
RAL 8019

Graphite Grey
RAL 7024

Signal Black
RAL 9004

Black Grey
RAL 7021

Black Brown
RAL 8022

Jet Black
RAL 9005

Clear Lacquer
Internal Only
Rationel FORMA windows and doors are available in one standard colour on both the inside and outside of the frame.
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.
Granite
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
Glazing Options
Rationel windows combine safety, privacy and energy-efficiency features that help you make the very best of your home.

Rationel SECURE - Our windows are built with security in mind. Read more about our Secured by Design certification or watch the video on our website

Rationel OBSCURE - Our panes are designed to restrict the view into private areas such as bathrooms. Choose from six different types of glass to get the combination of light and privacy you desire

Rationel SAFETY - Our glass holds together when shattered, reducing the risk of injury if someone falls into the pane. Panes can be made of toughened glass, laminated glass or a combination of both

Rationel FACADE - Used in buildings either to create a visually coherent facade or for special colour effects, FACADE is well suited to storey divisions as well as ventilated and insulated panels, and is available in special colours on request

Rationel SOUND - Our windows are built with security in mind. If your home is subject to environmental noise, our noise reducing panes are for you. Panes feature two glass sheets that act as a break, dramatically reducing the movement of sound into your home and creating a peaceful environment

Rationel SOLAR - Our solar panes limit the amount of sunlight and heat coming into a building, depending on the light and heat shielding levels required. This means significantly less energy will be required to cool hot rooms
Durability Tests
A series of test videos are available to view on the website.

Air Permeability
600PA

Wind Resistance
1600PA

Operation
10,000 Cycles

Water Tightness
600PA
Minimum/Maximum Sizes
Max width and height are subject to glass weight and spec.

Opening Function
Top Guided
Minimum Width
358mm
Minimum Height
388mm
Maximum Width
1798mm
Maximum Height
1598mm

Opening Function
Top Swing
Minimum Width
558mm
Minimum Height
548mm
Maximum Width
1598mm
Maximum Height
1598mm

Opening Function
Fixed Light
Minimum Width
250mm
Minimum Height
250mm
Maximum Width
2998mm
Maximum Height
2998mm

Opening Function
Side Guided
Minimum Width
458mm
Minimum Height
438mm
Maximum Width
998mm
Maximum Height
1598mm

Opening Function
Side Hung
Minimum Width
358mm
Minimum Height
358mm
Maximum Width
948mm
Maximum Height
1798mm
Sectional Details
Triple Glazed

1. Vertical section head

2. Horizontal section jamb

3. Vertical section sill

Best performance triple glazed
Double Glazed

1. Vertical section head

2. Horizontal section jamb

3. Vertical section sill

Best performance double glazed
Handles and Accessories
Handle
for outward opening window and patio door
Handle
with child lock
Handle
for outward opening window and patio door
Patio door handle
with key internal only
Entrance door handle
with back plate key-key
Entrance door handle
with back plate key-thumb
Entrance door handle
with round rose key-key
Entrance door handle
with round rose key- thumb turn
Finger pull handle
for sliding door
Handle
for sliding door
Night vent position
Restrictor
Letter plate
Secured by Design
Letter plate
normal
Security Hardware
Both Rationel FORMA & FORMA+ come with security hardware as standard to meet SBD requirements. The vast majority of timber originates from FSC-certified forests.


