SlimLine 38 Aluminium Windows and Doors
Suitable for both minimalistic new builds and renovation projects, the Reynaers SlimLine 38 (SL 38) window and door system offers a timeless ‘steel look’ that is both slender yet sturdy, maximising natural sunlight with slim sightlines.
SL 38 offers the highest levels of performance with excellent security, weather resistance and thermal insulation.
With its slender look, SL 38 is perfect for modern homes as well as renovation projects whereby respecting the original design is of utmost importance.
For a more refined look, the Ultraslim variant of the SL 38 door offers unrivalled aesthetics. The steel-look door features a slim aluminium frame with large glass panels to achieve a distinctive grid pattern, ideal for use in traditional, minimalistic, and industrial style properties. The large area of glass maximises natural daylight and allows homes to benefit from a light, open space.
- Features
- Style options
- Downloads
- Technical information
- Opening options
- Energy Efficiency
Performance
In combination with its superior insulation capabilities, the system provides the perfect harmony between durable material, clean design and reliability needed for your home. Renovation of steel-framed windows with modern, slim frame aluminium windows can also enhance the security, noise and energy efficiency of your property.
- Ultra slim frame
- Industry leading maximum sizes
- Double- and triple-glazed options
- Easy clean egress hinge option
- Strong and durable
- Secured by Design accreditation
- U-value as low as 1.4W/m2K
Downloads
Download the brochureTechnical
Properties
Min. Visible width frame: inward opening
33.5 mm
Min. Visible width vent: inward opening
23 mm
Min. Visible width frame-vent: inward opening
67 mm
Min. Visible width frame: outward opening
29 mm
Min. Visible width frame-vent: outward opening
80 mm
Min. Visible width T-profile
48 mm
Max. height vent
2800 mm
Max. width vent
1200 mm
Max. weight element
170 kg
Overall system depth frame
99 mm
Overall system depth vent
86 mm
Rebate height
13.5 mm
Min. Glass thickness
16 mm
Max. Glass thickness
55 mm
Min. Glass thickness vent
16 mm
Max. Glass thickness vent
55 mm
Glazing method
Dry glazing with EPDM or neutral silicones
Thermal break
Fibreglass Reinforced Polyamide Strips
Performance
Comfort

Air tightness max. test pressure
4 (600 Pa)

Water tightness
9A (600 Pa)

Wind load resistance
C4 (1600 Pa)

Acoustic performance
45 dB
Safety

Burglar resistance
RC2/WK2
Energy

Thermal insulation
U-values as low as 0.93W/m²K
Opening options
Inward opening
Outward opening
Other
Style options
The SL 38 system is available in 3 different minimalistic design variants, Classic, Ferro and Cubic, to perfectly match the requirements of your project. The windows and doors can additionally be provided with double and triple glazing without losing the ultra-slim look.
HERITAGE PROFILES

Classic

Cubic

Ferro

Ultraslim Door
Energy Efficiency
Performance
Energy

Thermal insulation
U-values as low as 0.93W/m²K
Visit our Energy Efficiency page for more information
Learn moreVisit our virtual showroom or find a Reynaers at Home local installer near you
You can now visit the Reynaers Showroom any time you like, with our brand new 360° showroom tour featuring our most popular products. We also have a network of local installers throughout the UK that can advise on product choice and installation for any of the Reynaers at Home aluminium systems for your home project.
Colours
Your style deserves to shine through, even in the smallest of details. That is why we offer over 900 RAL colours in various finishes to create the perfect final touch for your aluminium glazing. Combine your favourite colour with a metallic, anodised, matt, gloss, wood look or even a special low-maintenance and scratch-resistant Structure finish.
With an inspired range, you can choose from the latest colour trends as well as the timeless classics.












