Rationel windows achieve Passivhaus standard at lower cost

Passivhaus energy consultants say Rationel’s slim framed Danish timber window products can achieve Passivhaus Standards with slimmer frames, without thermal insulation in the frames, and at a lower cost.

Rationel’s timber window product is very reliable and an essential marker for Passivhaus Standard and where care has been taken in the window installation, the energy efficiency of the Rationel window can be better than more expensive products with thermal insulation in the frames and much thicker frames.

Rationel windows have more glass and less farm than many of their competitors, because of their elegant slim profiles, giving greater solar gains, and daylight for the same size windows.

Rationel top hung windows are used to give the opening sizes needed in a single pane and due to the lack of mullions, there is less frame and more glass.


Get in touch: Rationel Vinduer Ltd. · Grande Central • Rockbrook • Blackthorn Drive • Sandyford • Dublin 18 Tel. 1800 292929 / 01 297 1005 · E-mail: enquiries@rationel.ie

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