Timber Casement Windows

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Good, solid, quality workmanship has characterised Rationel’s windows and doors since the first products were shipped from our factory in Sdr. Felding in 1954. Based on this sound foundation, Rationel is today an international company with sales offices in Great Britain, Ireland and Denmark.

Rationel manufactures energy saving windows and doors of premium quality in terms of both comfort and security. Our continuous programme of research and development ensures that the company always meets current statutory requirements as well as market requirements for design and functionality.

Rationel enhanced windows and doors have been tested and marked according to several national and European standards, including ’Secured by Design’. To be certified under this initiative, the window frame or door frame and corresponding lock and hardware set has to be able to withstand a series of physical tests based on common burglary methods. Rationel has a wide range of products which meet ’Secured by Design’ specifications.

 

 

 


Rationel AURA®

Our ‘energy-contributing’ Rationel AURA windows offer the same excellent properties
as Rationel AURAPLUS, but these windows are made entirely from timber. You can therefore combine a beautiful natural look with a clean contemporary design for modern buildings and Passiv Haus. Rationel AURA ensures that high levels of daylight and solar heat gain are achieved. This free heat is the best energy source available and also provides a healthy and comfortable indoor climate. These windows come with security ironmongery as standard, and are suitable for Passiv Haus buildings.

Rationel AURAPLUS

The design of AURAPLUS is slim and elegant, creating a stylish overall architectural appearance, whether you are building a new house or refurbishing an existing one. The slim design
also allows maximum natural light into the home. Made from timber, with external aluminium cladding, Rationel AURAPLUS 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.

Rationel FORMA®

Our ‘energy-contributing’ Rationel FORMA windows offer the same excellent properties

as Rationel FORMAPLUS, but these windows are made entirely from timber. The angled glazing bead and ovolo moulded profile make it an ideal choice for country-style and traditional designs. Rationel FORMA ensures that high levels of daylight and solar heat gain are achieved. This free heat is the best energy source available and also provides a healthy and comfortable indoor climate. These windows come with security ironmongery as standard, and are suitable for Passiv Haus buildings.

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.

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Timber Casement Windows

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Timber/Aluminium Casement Windows

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Opening Types

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