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Thermally-Broken Steel Profile

Slim & Narrow-Sight-Line Profiles by Ottostumm

Tuval-Minimal’s Thermally-Broken Steel-Windows & Doors are crafted with Ottostumm’s high-quality profiles.
Ottostumm’s unique W50 profiles family perfectly match Tuval’s approach to offer the most minimalist & clean designs.

With more than 20 years experience, we offer the highest quality Thermally-Broken system, preserving the famous elegant look of the legacy hot-rolled steel-windows.

  • Steel Windows & Doors with legacy look & fittings. Keeping the legacy look, side to advanced Thermal Performance.
  • Spray painting with variety of special finishes. Unique look, Strength & durability for years without rust and without maintenance.
  • Dual Weather striping, Advanced dual-glazing. Low U-Factor side to superb isolation.

W50 TB By Ottostumm

Keeping all the famous benefit of Steel-Windows & Door, without having to compromise superb Thermal-Performance 

  • Minimalist appearance low U-Factor
    Most minimalist thermally-Broken steel profile with dual rubber seals. Similar sight-line of Legacy W40 profiles, with low U-Factor (>0.3). IGU total thinness up to 37mm.

  • A variety of options for window & door opening
    inward/outward, awning, or pivot. 
  • Customized design & Style
    Classic or Modern with full flexibility to define all dimensions and design, as per the opening characteristics and operational requirements.
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