EC180 Double-Hung Window

The EnergyCore 180 double-hung window offers the industry's best combination of energy efficiency and structural performance. Additional features the include a hybrid sloped sill, tilt-in sashes, quadruple weatherstripping, and interlock at the center rail make our EC180 window the ideal solution for any new home construction or renovation and replacement project.

Energy Star ®

Zones:

  • North-Central
  • Northern
  • South-Central
  • Southern
Features:
  • Welded, multi-chambered frame and sash for superior strength and energy-efficiency
  • Metal-reinforced meeting rail delivers superior strength and durability
  • Heavy-duty weatherstripping for unbeatable thermal performance
  • Dual-compression bulb seals for protection against wind, rain, dust, and noise
Product Details:
  • 3-1/4" frame depth
  • 3/4" dual-pane insulated glass
  • 5 frame styles
    • 1-3/8" fin, 1-3/8" stucco fin, 1" fin, 1-7/8" flush fin, finless
Performance Ratings:
  • STC: 29-39
  • U-Value: 0.20-0.37
  • SHGC: 0.12-0.28
  • VLT: 0.25-0.52
Glass Options:
  • Tempered
  • Obscure
  • Laminated
  • Argon Gas Enhancement
  • LoE-340
  • LoE-366
  • i89 LoE
Color Options:
  • White (interior and exterior)
  • Adobe (interior and exterior)
  • Bronze  (exterior with white or adobe interior)
Grid Options:
  • 5/8” flat grids-between-the-glass
  • 15/16” sculptured grids-between-the-glass\
  • 5/8” simulated divided light
  • 15/16” simulated divided light
Hardware:
  • Color match

*Product availability varies by state and region. 
Consult your local building code for product approvals pertaining to your specific project.  Please contact MI for assistance.