Core Series

Width of the overall glass unit is 1 3/8" top rating in energy efficiency.

Ostaco Windows and Doors Core Series - 1 

Core Construction:

  • Ostaco Windows and Doors Core Series - 2Multi-chambered design reduces exterior noise, adds insulation and strength and provides thermal efficiency.
  • Multiple weather-stripping provides outstanding protection against the elements.Up to 5 weatherstrips help reduce heating and cooling costs.
  • Screen channel designed for screen removal from inside your home.Half screen and full screen are available.
  • Welded frame and sash corners provide strength and protection against air and water infiltration.
  • Snap-in interior glazing bead allows easy replacement of glass from the inside.
  • Double-walled sash design for superior strength.
  • Excellent drainage system evacuates the heaviest rains.
  • Provision to add windbreak to cut down on air infiltration.
  • Extra thick wall design for improved rigidity.
  • Interior groove allows the addition of mouldings such as 3/4" wood return, wood jambs or all u-PVC jamb extension.
  • Provision for installation brackets.
  • Tilt option available for easy cleaning
  • New Ostaco "inLighten" screen is available.

Core Single Hung/Single Slider Performance Ratings

Series Core Core Plus
Air Infiltration Resistance A3 A3
Water Infiltration Resistance B4* B3
Wind Load Resistance C3 C4
Forced Entry Resistance F2 F2

A3
AIR
B4
WATER
C3
WIND
F2
FORCED ENTRY

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

 

Core Series
Single Slider & Single Hung Windows

Ostaco Windows and Doors Core Series - 3

 

This is perfect for older households with 2x4 construction, as our Core Series is designed to fit thinner 3 1/4" wall construction.

Frame

  •  3 ¼" frame

Wood Extension Options

  • Available with a wide variety of wood extensions from pine to oak.

Colour

  • White, or exterior painted in your choice of colour.

Performance Rating

  • Energy Star approved.

Glass options

  • Standard Low E2;
  • our latest comfort technology LowE3;
  • or our new Low E 179c
    (the best ER rating in the entire world!).

Options

  • A wide range of decorative grilles and energy-smart glazing options are available to give your window a custom-designed look.