Green Building Store ULTRA triple glazed timber inward opening tilt and turn window

Triple glazed timber inward opening window, with insulated frame option. Uw value  0.75 – 0.68 W/m2K


  • Inward opening tilt and turn windows (outward opening also available)
  • FSC® timber in redwood & oak
  • Insulated frame window redwood option
  • BRE Green Guide A+
  • Made exclusively for Green Building Store by our partners in northern Europe

Glazing & U values

Solid frame:
Whole window Uw 0.75 W/m2K Redwood
Whole window Uw 0.83 W/m2K Oak
Insulated frame:
Whole window Uw 0.68 W/m2K Redwood
Whole window Uw 0.72 W/m2K Oak

Glazing U value: Ug 0.52 W/m2K
Triple unit Argon fill 52 mm
Light transmission value: 74.1%

Typical maximum sizes

Tilt & turn: 1300 mm x 2300 mm
Tilt only: 2000 mm x 950 mm or 1300 mm x 2300 mm

Please see some sample styles below. If you can’t see the style you’re looking for, please get in touch, as everything we do is bespoke and made to your requirements.

Provided by NBS

Affiliations & Accreditations