Slimline Elite
The global standard for the steel-window aesthetic — an ultra-slim Reynaers aluminum system built to match the sightlines of original steel-framed buildings while delivering modern thermal performance.
Request a QuoteSpecifications
| System | Reynaers SlimLine 38 (Belgium) |
|---|---|
| Frame Material | Thermally broken aluminum, 3-chamber construction |
| Seals | 3 gaskets |
| System Depth | 3.0" – 3.9" |
| Glazing | 15–55mm range |
| U-Factor | As low as 0.14 Btu/h·ft²·°F |
| SHGC | 0.16 – 0.53, depending on glass package |
| Sound Reduction | Up to 47 dB |
| Design Styles | Classic, Ferro, and Cubic profile options |
| Certification | NFRC Certified |
| Warranty | 10-year frame, 10-year glass |
Details
Slimline Elite is our recommendation for renovations of buildings with original steel-sash windows, and for new architecture that wants that same minimalist, ultra-thin sightline. Built on the Reynaers SlimLine 38 platform, it holds a 3.0“–3.9“ system depth across three interchangeable design styles — Classic, Ferro, and Cubic — so the frame profile can be tuned to match a period restoration or a clean contemporary build.
Behind the slim face is a fully thermally broken, 3-chamber, 3-gasket frame accepting glazing from 15mm up to 55mm, with U-factors as low as 0.14 Btu/h·ft²·°F and NFRC certification. It’s a system that lets a narrow black frame do the visual work while the thermal and acoustic performance stays current.
Gallery
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