An odorless, colorless, tasteless, non-toxic gas which is six times more dense than air. It is used to replace air between the glass panes to reduce temperature transfer between the outside and inside pane of glass.
An angled extension from the frame that adds an aesthetically-pleasing dimension to the exterior of the window.
An arced extension from the frame that adds an aesthetically-pleasing dimension to the exterior of the window.
Glass with a thickness of approximately 1/8". Stronger glass helps against stress fractures.
A place or means of going out.
Any opening in a building's envelope including windows, doors, and skylights.
The process of joining materials by melting them together with extreme heat (over 500°F), resulting in the materials uniting into a one-piece unit.
A strip of vinyl which surrounds the edge of the glass holding it in place in the sash.
Vertical sections of the main frame.
A continuous handhold along the sash for raising and lowering the sash.
A continuous handhold along the sash for sliding the sash back and forth.
Solar Heat Gain Coefficient (SHGC)
SHGC measures how well a product blocks heat caused by sunlight. The lower the window's solar heat gain coefficient, the less solar heat it transmits.
Two-sided tape used to secure and seal the glass to the sash.
U-factor measures how well a product prevents heat from escaping. The lower the U-value, the slower the rate of heat flow and the better the insulating quality.
Visible Transmittance (VT)
VT measures how much light comes through a product. The higher the VT, the more light is transmitted.