Nature Optimo

Natura Optimo

The NATURE OPTIMO window is made entirely of wood to create the optimal combination of high energy efficiency, beauty and affordability. It is a basic, popular window type from the Optimo family.


  • thickness of window casement and frame 92 mm
  • produced with the newest computer controlled technology bought in 2014


  • modern design
  • suitable for low-energy and passive buildings
  • warm feeling
  • excellent watertightness and airtightness
  • long life time


  • Resistance to wind load (EN 12210): Class 5 (single casement) / C3 (double casement)
  • Watertightness (EN 12208): Class E1200 (single and double casement)
  • Air permeability (EN 12207): Class 4 (single and double casement)
Profile dimensions installation depth 93 mm
visible width 107 mm
Instalation options rectangular
arched, semicircular
Opening options fixed
combined (tilt and turn window)
folding walls
tilt-slide walls
lift-slide walls
opening outwards
two-sided handle
Thermal insulation of the window (Uw) Ug = 1,1  
Ug = 1,0  
Ug = 0,7 0,92 W/m²K
Ug = 0,6 0,84 W/m²K
Ug = 0,5 0,75 W/m²K