Open — Inwards
SlimLine 38
Ultimate performance window system with exceptional thermal insulation — an inward-opening Reynaers profile fabricated and installed in-house.
Ultimate performance window system with exceptional thermal insulation — an inward-opening Reynaers profile fabricated and installed in-house.
Advanced thermal break technology achieves U-values as low as 0.96 W/m²K — better than many thicker systems — for excellent energy efficiency and indoor comfort.
Slim profiles create a sleek, contemporary appearance with sightlines as narrow as 23mm — maximising glass area for abundant natural light.
Supports vents up to 1200mm wide and 2800mm high with a maximum glass weight of 170kg, enabling impressive floor-to-ceiling openings.
Acoustic performance up to 45dB blocks urban noise, with inward, outward and tilt-turn opening variants for extra ventilation control.
Every specification refined to deliver optimal performance, aesthetics and ease of installation.
Independently tested and certified to exceed UK Building Regulations and industry standards.
| Performance metric | Rating / value | Standard |
|---|---|---|
| Thermal insulation (Uf) | 1.9 W/m²K | Frame U-value |
| Thermal insulation (Uw) | 0.96 W/m²K | Window U-value |
| Air tightness | Class 4 (600Pa) | BS EN 12207 |
| Water tightness | Class 9A (600Pa) | BS EN 12208 |
| Wind load resistance | Class C4 (1600Pa) | BS EN 12210 |
| Acoustic performance | 45(-1;-5) dB Rw(C;Ctr) | BS EN ISO 717-1 |
| Max vent dimensions | 1200mm × 2800mm | Width × height |
| Burglar resistance | PAS 24, RC2 | Enhanced security |
| Opening & closing | Class 3 | BS EN 13115 |
Slender steel-look design, perfect for contemporary projects. Ultra-slim 68mm profiles.
Ultimate performance window system with exceptional thermal insulation.
Speak to our team for a free, no-obligation quote — Romsey, Southampton, Winchester & across Hampshire.
Call 01794 721 100