Demo Product

Featured Image: PERFORMANCE tilt turn inward opening triple glazed timber window

Triple glazed timber inward opening tilt and turn window. Cost-effective option for low energy retrofits and newbuilds.


  • Inward opening (outward opening also available)
  • High performance triple glazing
  • FSC® 100% redwood or oak timber
  • Secured by Design option
  • 78mm profile
  • BRE Green Guide A+
  • Made exclusively for Green Building Store by our partners in northern Europe

Glazing & U values

Whole window U value: Uw 0.85 W/m2K (Redwood)
Whole window U value: Uw 0.93 W/m2K (Oak)
Glazing Ug: 0.58 W/m2K
Triple unit: Argon fill 44 mm
Light transmission value: 74.1%

Typical maximum sizes
Fixed light: 2500 mm X 2500 mm
Side hung: 950 mm X 1520 mm
Top hung: 1300 mm X 1650 mm

Affiliations & Accreditations