Core Construction:

• Multi-chambered design adds insulation, sound abatement and strength.
• Provision to add windbreak to cut down on air infiltration.
• Groove for screen installation is inside the home.
• New Ostaco "inLighten" screen is available.
• Accommodates a broad range of glass types and thicknesses including double and triple panes, highly energy efficient units or decorative glass.
• Heavy-duty,multi-point locking system is standard to help secure your home.
• Fusion-welded sash and frame corners prevent leaks, add strength and keep the window square.
• Snap-in colonial glazing bead makes it easy to replace glass from inside your home.
• Internal screw boxes and extra walls ensure sturdy hardware attachment.
• The triple weather-stripping system provides a higher level of resistance to air and water infiltration.
• Steel reinforcement available for larger size windows.
• Interior groove to allow for the addition of mouldings such as 3/4" drywall return, wood jamb or all u-PVC jamb extension.
• A wide range of decorative grilles and energy-smart glazing options are available to give your window a custom-designed look.
• Provision for installation brackets.
   

Core Casement/Awning Performance Ratings

Core Series and Core Plus Series windows are Energy Star approved. Performance chart by USWADA.