PERFORMANCE ULTRA triple glazed timber alu clad window with narrow installed sightlines with the timber frame designed to be wrapped within external wall insulation

Triple glazed timber alu-clad inward opening tilt & turn window with U values ranging from 0.85 W/m2K to 0.68 W/m2K. Suitable for newbuilds and deep retrofits.

  • Inward opening
  • High performance triple glazing
  • FSC® certified timber in redwood & oak
  • Aluminium cladding (on exterior)
  • Visible external sightline: 71mm (opening window)
  • Partially exposed timber frame, for wrapping within the building fabric
  • Dual compression seals for long-term airtightness
  • Secured by Design option
  • Frame depth: 78mm or 98mm options
  • Made exclusively for Green Building Store by our partners in northern Europe

Glazing & U values: 78mm frame depth

Whole window U Value: Uw 0.85 W/m2K (Redwood)
Whole window U Value: Uw 0.94 W/m2K (Oak)
Glazing U value:: Ug 0.58 W/m2K
Triple unit: Argon fill 44mm
Light transmission value: 74.1%

Glazing & U values: 98mm frame depth

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 note: For Part Q and Secured By Design items,  there may be size restrictions. Please get in touch to discuss.

Test results

Air Permeability BS EN 12207: 600 Pa Class 4

Water tightness BS EN 12208: 600 Pa Class 9A

Wind load BS  EN 12210: 2400 Pa Class E2400

Exposure category BS 6375-1: 2400

* U values calculated for standard single window 1230 X 1480

Affiliations & Accreditations