Ottostumm  Windows & Doors

Custom Classic Hot and Cold Rolled Steel & Bronze Profiles 

  • Historic Replication

  • Custom Designs

  • Modern Minimalism

  • Steel

  • Bronze

  • IQ Radiant Glass

  • High Impact

  • Security

  • Windows & Doors

  • Cold Rolled Available 

Solid hot rolled steel profiles

“Stepped leg” design

Thickness up to 5 mm

Minimal Sight Lines

Non-shrinking renewable gaskets

Double-glazing up to 21 mm

IQ Radiant Glass Compatible 

(to eliminate condensation and provide radiant heat to the interior room)

Choice of glazing beads

Heavy-duty corrosion protection Custom Colors

Please provides us with sketches

and photos if appropriate. We will

assist in design, detail development and CAD files.

Using IQ Radiant Glass will heat the interior glass of the IQ unit, directing 85-95% of the heat into the room, completely eliminating the cold glow and condensation on the glass and metal frame.

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©2018 by IQ Radiant Glass Steel Windows

IQ Radiant Glass ®

Villanova, Pennsylvania,19085, USA

 610. 246.3922