Mikron. Featuring triextruded frames and an aircell insulating core EnergyCore vinyl replacement windows offer nearly 15 improved fullwindow Ufactors over hollow vinyl the company says while blocking thermal conductivity six times better than fiberglass four times better than rigid PVC and three times better than wood. When combined with highperformance tripleglazing systems the windows provide a 0.15 Ufactor and a 6.5 Rvalue exceeding Energy Star standards by 50. Doublehung casement picture and doubleslider units are available. 800.456.8020. 
www.mikronvinyl.com.
Mikron. Featuring triextruded frames and an aircell insulating core EnergyCore vinyl replacement windows offer nearly 15 improved fullwindow Ufactors over hollow vinyl the company says while blocking thermal conductivity six times better than fiberglass four times better than rigid PVC and three times better than wood. When combined with highperformance tripleglazing systems the windows provide a 0.15 Ufactor and a 6.5 Rvalue exceeding Energy Star standards by 50. Doublehung casement picture and doubleslider units are available. 800.456.8020. www.mikronvinyl.com.

Mikron. Featuring tri-extruded frames and an air-cell insulating core, EnergyCore vinyl replacement windows offer nearly 15% improved full-window U-factors over hollow vinyl, the company says, while blocking thermal conductivity six times better than fiberglass, four times better than rigid PVC, and three times better than wood. When combined with high-performance triple-glazing systems, the windows provide a 0.15 U-factor and a 6.5 R-value, exceeding Energy Star standards by 50%. Double-hung, casement, picture, and double-slider units are available. 800.456.8020. www.mikronvinyl.com.