The
just-right air gap
It's the air between the glass panes that does the insulating,
while the panes stop the movement of air. Too close and heat will
be transferred between panes. Too far and internal convection reduces
the effectiveness. Standard CertainTeed panes are spaced at an optimum
16 mm |
|
Inside
CertainTeed quality
Balance and tilt-in mechanisms for the sashes are corrosion resistant
and tested for decades of trouble-free operation.
Virtually
no maintenance is needed to keep your CertainTeed windows looking
great. |
|
The
CertainTeed double-hung balance system
In double hung windows, CertainTeed's balance system features
a 19mm wide stainless steel coil that applies constant force so
the sashes move with equal ease from top to bottom.
They never sag.
They never need adjusting. You've always got control. |
