Its slender steel-look design makes the SlimLine 38 high-insulation system the perfect fit for any contemporary project. The durable aluminium windows have been perfected over the years and offer unlimited design freedom thanks to their multiple minimalistic variants.
If you are looking for slender high-performance windows that let in lots of natural daylight, you might want to consider SlimLine 38 for your next project.
Perfect for both minimalistic new-builds and renovation projects, the timeless steel look window system blends perfectly with any architectural style and opens your home to incredible views.
Multiple design variants, safety variants such as burglarproof (RC2 / PAS 24) and fireproof, and a wide range of opening types help you create the ideal window solution for your unique building project. What is more, SlimLine 38s low-carbon Cradle To Cradle® certified design matches all your sustainable building needs, today and tomorrow.
Slim steel-look design in a variety of styles
SlimLine 38 windows combine timeless steel-look design with all the benefits of aluminium profiles. Tradition meets modern day technology as the high-performance system offers slim aesthetics and an abundance of natural light. Easily create impressive views with slender opening vents of up to 118″ in height.
Futureproof and durable window solution
As less material is needed to create the slender yet sturdy windows, SlimLine 38s carbon footprint is remarkably low.
Moreover, the Cradle To Cradle® certified profiles are 100% recyclable, while the system’s high-insulation variants help you meet all of your low-energy building needs. Enjoy excellent thermal performance all year long.
Crisp, high-quality finishing in every detail
High quality design is most visible in the finest of details. For SlimLine 38, this means all hardware, including hinges and drainage options, is subtly concealed inside the ultraslim profiles. Even burglarproof and fireproof upgrades are available with this refined solution. Moreover, SlimLine 38 is widely available thanks to our vast network of professional partners. Its versatility makes it the perfect solution for all kinds of (renovation) projects, including yours.
Key features
Slim line profile
The system offers a very slim profile with a minimum height of frame+sash from as little as 2.17 in.
Burglary resistance
The SlimLine 38 system meets the RC2 burglary resistance requirements. It also has the possibility of obtaining WK2 and PAS24 certification.
Customized color
The system offers a wide choice of RAL colors.
Fire resistance
Fire resistance of class EW 30. The integrity of the system is guaranteed for 30 minutes.
High resistance and leak-tightness
Highest air tightness (class 4 – 600 Pa / 0.087psi) for air infiltration. High wind load resistance class C4 – 1600 Pa and high water resistance class 9A (0.087psi).
Concealed hinges
Slim Line 38 offers a concealed hinge option.
Acoustic insulation
Depending on the type of glazing, the system offers between 38 and 45 dB of sound insulation.
Technical specification
| Material | aluminum |
| Class | aluminum systems |
| U-Factor | 0.17 Btu/h·ft2·F |
| Ug | 0.09 Btu/h·ft2·F |
| Max. glazing thickness | 2.17 in |
| Frame depth | 2.99 in - 3.9 in |
| Sash depth | 2.83 in - 3.39 in |
| Frame + sash height | 2.17 in |
Is SlimLine 38 right for you?
See who we recommend this system to. Choose SL 38 if:
- you are investing in the renovation of steel-framed windows because it allows you to preserve the original appearance of the facade
- you are looking for casement windows (windows that open outwards)
- you need a system with very good wind, rain resistance parameters
- you need very slim aluminum window profiles
- you need to meet the high requirements of an architect, which will be helped by the different looks of the profiles and the many color possibilities
Get your investor interested in the SlimLine 38 system
What kind of end customer (user) will be interested in this system? Here are some arguments you can use when talking to your investor:
- the windows are ideal for buildings whose carpentry is in need of renovation in relation to narrow steel profiles, while offering better thermal insulation
- very slim profiles let in a lot of light
- high wind- and water-tightness parameters provide users with excellent comfort even when standing by the window
- perfect for fans of minimalist aesthetics
- system made of durable materials is resistant to scratches during installation and withstands the passage of time better than, for example, uPVC
More details about SlimLine 38
The system has 5 variants of slimline aluminum profiles to choose from, which differ mainly in design.
- SlimLine 38 Classic with sloping surface, 0.91 in sash
- SlimLine 38 Classic Casement allows windows to open outwards from the building
- SlimLine 38 Cubic with a stepped surface and 0.87 in sash
- SlimLine 38 Ferro with straight lines and the narrowest sash of 0.83 in
- SlimLine 38 Reno NL
A choice of profile variants allows you to tailor the system to the requirements of your project. Slim Line 38 offers RC2 burglary resistance, which will suit most standard projects.
SL 38 profiles have very good wind and water resistance parameters. These are therefore very tight and rigid profiles.
