OKNA Windows

New Energy Star Specifications

The U.S. Environmental Protection Agency released its final draft of the Version 6.0 specification for Energy Star windows and doors. Among the changes in the latest proposal is a revised implementation date, with the new standards now set to take effect January 1, 2015, instead of early 2014, as previously planned.   The draft maintains a 0.27 U-factor …

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Benefits of the OKNA 800 Replacement Window

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 …

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