The OKNA Enviro Star 800 Series window offers top of the line energy efficient features along with a sleek frame design that will look beautiful in any home while providing exceptional energy savings.
Some of the feature and benefits include:
- Full 3 1/4″ Depth Welded Mainframe with foam-filled frame and sash
- Full integral interlock along the meeting rail with triple weather stripping
- Heatseal warm edge spacer system – for excellent protection against the transfer of cold from outside to inside pane of glass
- Elegant, beveled profile gives the window the traditional look and feel of wood windows with the performance and ease of maintenance of a vinyl window
- Leads the industry with a 0.01 Air Infiltration rating – 3000% better than the industry minimum standard (Air leakage can account for 25%-40%of the energy used for heating and cooling a typical home)
- 11-coat Climaguard Low-E coating
- Magnetic weather-stripping, similar to those used in refrigerators, eliminates drafts and greatly improves the thermal performance of the windows
- High density composite reinforcement bar along the center meeting rail give the windows outstanding structural performance
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