The Best of Both Worlds




Fiberglass evolved as the next window and door material after uPVC. That is, until RAU-FIPRO came along.

 The unique infusion of glass fiber into REHAU's exceptional uPVC creates the best of both worlds. With RAU-FIPRO, the future is here.


Fiberglass or vinyl—why should you have to choose? RAU-FIPRO is a co-extruded material made out of both uPVC and fiberglass. The combination creates a one-of-a-kind material with outstanding functionality and performance. RAU-FIPRO is at the core of REHAU’s GENEO® window system and can also be made into any custom window and door design by request. Windows made with RAU-FIPRO allow for an arched or half-rounded top. Any type of rounded window is not possible with fiberglass alone.

Elements that provide strength and durability are key in a window design as well as an expanded viewing area —which is exactly what RAU-FIPRO offers.  


RAU-FIPRO Strength


RAU-FIPRO is more than 2X stronger*.

Windows made with RAU-FIPRO boast extraordinary stability.

This provides for windows and doors made without reinforcements, saving time, money and further improving the ease of installation.

Reinforcements can still be used to create even larger sizes, letting in even more natural light and showcasing the beautiful views surrounding your home.

Watch Episode 1 of MEET THE MATERIALS

*vs. vinyl windows

RAU-FIPRO Longevity


RAU-FIPRO is designed with fusion-welded corners for zero leakage.

While traditional fiberglass windows have corner joints that loosen and eventually let in water and drafts, the uPVC component of RAU-FIPRO allows for welded corners.

The high-quality extrusions made with RAU-FIPRO and welded corner design ensure for long-lasting windows, exceeding 30 years.

Watch Episode 2 of MEET THE MATERIALS



More than 10% better thermal performance*.

RAU-FIPRO is the foundation for highly energy-efficient windows and doors that will save money on monthly energy bills.

It also helps the environment and supports sustainability. RAU-FIPRO windows and doors are certified for Passive House and Net-Zero Construction; ensuring that homes have extremely low energy consumption.

Energy efficiency and high performance and are not a given in all windows. RAU-FIPRO is a unique top of the line material that offers these benefits, so you can focus on getting the style of the window that you want, without sacrificing quality.

Watch Episode 3 of MEET THE MATERIALS

*vs. vinyl windows with metal reinforcements





Sell Sheet



System GENEO

GENEO is the first fully reinforced polymer window profile system that doesn’t rely on steel for its strength. Instead, it’s composed of RAU-FIPRO™, a proprietary fiber composite material similar to those employed in aeronautic construction and racing vehicles for outstanding strength and load capacities.

RAU-FIPRO, specially developed for GENEO, affords window construction benefits only imagined before. GENEO does not only provide superior structural integrity but also excels when it comes to thermal and acoustical performance. 

Custom Designs

GENEO Custom Designs

RAU-FIPRO material is currently used to make GENEO windows, but it can also be used in any custom window and door design by request. With the nearly endless possibilities for configurations – hung, slider, fixed, casement and tilt-turn windows together with sliding, folding, tilting and lifting doors – you can turn almost anything you imagine into reality.

Contact us today to discuss creating your custom designs!


Bernhardt Passive House

Bernhardt Passive Home – Victoria, BS

Using RAU-FIPRO, a custom composite material, the ThermoPlus tilt-and-turn design combines the best of GENEO with multipoint locking hardware. The windows were key to Bernhardt’s design, which needed to capture heat during the winter but block out heat during the summer.

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Udell Residence - Janesville, WI

GENEO windows work especially well in cold-weather installations, like this project in Wisconsin. GENEO windows do not need metal reinforcements and can be outfitted with foam insulation within the chambers instead, so they outperform most other windows in regards to condensation, unpleasant drafts, or cold feelings close to the windows in wintertime.

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Country Club on the Green GENEO Windows

Country Club Estates - Morden, MB

After building his own home six years ago, the builder of this home struggled with windows that let in noise and leaks during Manitoba’s bitterly cold winters. Those problems disappeared after he installed REHAU’s GENEO windows, and is the reason he chose them for this project, as well.

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Deep-energy Retrofit - Belmont, MA

The Greater Boston area is full of beautiful two- and three-story homes built in the early and mid-20th century that are, to put it mildly, energy inefficient. Buyers are eager to preserve the original features that give these residences their historic charm. They are not as enthralled, however, about living with the energy inefficiency that previous owners through the generations considered a fact of life.

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Green Homes North - Minneapolis, MN

Some couples pick out rings for each other when a relationship gets serious. Minneapolis residents Kitty Stratton and Gary Schollmeier picked out windows – energy-efficient GENEO® windows from REHAU to be precise. That’s not surprising given the fact the conversation on the couple’s first date after meeting online focused on their mutual interest in forward-thinking architectural concepts.

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REHAU commercial windows passive house

Orchards at Orenco  –  Hillsboro, OR

In June 2015, REACH Community Development completed a 57-unit multifamily residential affordable housing complex that meets Passive House certification standards. Some of the most demanding specs were applied to the windows and exterior doors, which must provide exceptional thermal performance and durability. The developers selected REHAU System 4700 GENEO tilt-turn windows and System 4600 hinged doors.
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