Reynaers Passive House Certified Windows CS-104


Reynaers Passive House Certified Windows CS-104

Wood finish

Reynaers Passive House Certified Windows CS-104

In terms of inward opening window systems, few are as effective as our unique Concept System 104. With superb energy performance and easy-to-use technology, the CS-104 will make an outstanding addition to any home.


Designed to maximise comfort whilst reducing energy consumption to a minimum, Concept System® 104 is one of the latest and most innovative inward opening window systems there is. The extreme insulation levels (Uf down to 0.88 W/m²K) are achieved by a patented technology, in which insulation strips with increased stability are combined with special foam in a way that no extra manipulation is needed during the production of the window elements. This guarantees a constant quality of the assembled element, making this window perfectly suited to passive constructions.

Besides a high insulation level, air tightness is the most important factor determining a window’s energy efficiency. Therefore, a new set of specific gaskets was developed to ensure the ultimate water and air tightness of the system, making this system applicable for extreme conditions such as coastal areas and high altitudes. The increased built-in depth (104mm) contributes to the strength and stability of the elements, allowing large dimensions, even with the application of triple glazing. The window system perfectly matches the CS 104 door system. Additionally, the system offers several levels of burglar resistance (class 2 and 3).



When it comes to replacing your windows, few things are more important than superb thermal performance. After all, effective thermal insulation can save you money, lower your carbon footprint and simply make your home a lot more ‘green’.

The CS-104’s carefully tailored bespoke weather gaskets, combined with the special patented foam in the chambers of the polyamide, will ensure your home enjoys outstanding results for years to come.

U-values have been measured as low as 0.88 W/m2k, making it ideal for even the most passive house constructions.


If you’re investing in your windows, the last thing you want is to worry about how they’ll react when the bitter winter weather sets in.

With the CS-104, you simply won’t have to.

Having undergone substantial testing, the CS-104 range gives you wind and water resistance values of 900Pa for windows and 300Pa for doors. Whether you live in a suburban semi or a windswept cottage in the mountains, you can be sure the CS-104 system can handle the outside elements.


And that’s before we mention the inherent strength of it. With a frame depth of 95mm and a vent depth of 104mm, the CS-104 offers a level of power and durability you’ll be hard-pushed to see elsewhere. From panoramic glass panes through to energy-efficient designs, the stability of the CS-104 can handle almost any project.

What’s more, the design is heavily focused on both air and water tightness. Whatever the weather, whatever the altitudes, the CS-104 won’t let you down.



In 2012, BIS introduced the PAS24 testing regulation designed to assess performance of both windows and doors.

We’re pleased to say that all of the products supplied by Livingwood have undergone stringent testing to ensure they meet these standards. The CS-104 is no different.

What does this mean for you? Simple: a safer home. The PAS24 is there to assess resistance of a product to burglary techniques.

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