| Awning Window |
A window hinged at the top, opening from the bottom swinging out. |
| Casement Window |
A window hinged on either side, opens to the outside like a door. |
| Check Rail |
The area in which the bottom rail of the top Sash and the top rail of the
bottom sash meet when the window is in the closed position. |
| Combination Storm/Screen |
A frame with two pieces of glass and a half screen installed on the
exterior of a double hung window, enabling full storm for winter months and
half screen during summer months. |
| Double Hung Window |
A window with two vertical sash, in a single frame which slide by each
other for either upper of lower ventilation. |
| Extension Jambs |
Flat pieces of wood applied to the inside of the window jamb extending the
width of window to a wider wall size. Extension jambs are flush with the inside
finished wall allowing casing to be applied. |
| Glass, Insulated |
Two pieces of glass secured together to enclose a captive air space. |
| Glass High Performance® |
A double pane insulated glass with a micro-thin coating of metallic oxides
on the outer surface of the inner pane of glass. The coating retards passage of
radiant, in addition to conducted or convected heat. |
| Glass High Performance® Sun II |
Sun II insulated glass is similar in construction to High Performance glass
except the outside light is bronze tinted and the micro-thin metallic coating
is on the air space surface of the outside light. Sun II filters out more
ultra-violet light. |
| Glazing |
The pieces of glass in the sash of a window. |
| Glazing Bead |
An extruded vinyl molding used to provide a weather seal between the
Glazing (glass) and the sash frame. |
| Glazing, Single |
A single piece of glass installed into a window sash. |
| Glazing, Double |
Two pieces of glass installed in a sash to provide an air space. |
| Glazing, Triple |
Three pieces of glass installed in a sash to provide two separate air
spaces. |
| Glazing Compound |
A flexible material applied between the window sash and the piece of glass
to seal out the environment and fasten the glass to the sash. |
| Glazing Bead |
A piece of wood or plastic material applied to the window sash and glass to
seal out the environment and fasten the glass to the sash. |
| Gliding Patio Door |
Two or more tempered door panels, which slide by each other within the same
frame. Generally only one panel operates. |
| Gliding Window |
Two or more sash which slide by each other within the same frame. |
| Grilles |
Decorative or simulated bars which don't actually divide the lights of
glass. Usually made of plastic or wood and fit on the inside of the glass
surface for easy removal. |
| Handing |
The Left and Right components of Doors and Windows is determined by viewing the Door or Window from the External View
(Outside View). Component parts follow the same rule.
See
Figure 3 - Casement Window Handing
for visual example. |
| Hopper |
Window sash hinged at the bottom and opening inward. |
Jamb Liner |
Plastic or metal material covering the head and side jamb of double-hung
windows. This material is moulded to form stops for inside and outside surfaces
and hides the sash balance system. |
| Jambs |
Head jamb is a horizontal piece across the top and the side jamb is the
vertical member of the window frame. |
| Keeper |
A hook shaped part of a casement and awning windows lock that is mounted on
the inside surface of the sash stile. The lock hooks under the keeper to pull
the sash into a locked position. |
| Lift |
A handle installed on the bottom of the lower sash of a double-hung for
ease of raising and lowering the sash. |
| Lock Rail |
One of the two horizontal pieces on a double-hung sash where the upper and
lower sash come together. |
| Low E Glass |
A glass which has low emissivity due to a film or metallic coating on the
glass to restrict the passage of radiant heat. |
| Meeting Rail |
One of the two horizontal pieces on a double-hung sash where the upper and
lower sash come together. |
| Meeting Stile |
The vertical member between two adjoining sash. |
| Mullion |
Joints between single windows joined together to make one in a single
frame, either horizontal or vertical. |
| Mullion Casing |
A casing member to cover mullions between single windows on the interior
or exterior of the unit. |
| Operator |
A metal arm and gear mechanism allowing easy opening and closing of
windows. |
| Picture Window |
A large non-venting window designed for maximum view without any
impediments. |
| Rails |
The top and bottom pieces of a door panel or window sash. |
| Rough Opening |
An opening in a wall to accept a window or door unit. |
| Sash |
The frame material holding the glass consisting of stiles and rails. |
| Sash Balance |
A system which assists in raising a double-hung sash and keep the sash in
the desired position. |
| Sash Lock |
A cam action lock applied to the meeting rails of a sliding or double-hung
window. |
| Sill |
The bottom horizontal piece of a window frame which generally slants
downward to the outside to shed standing water. |
| Stile |
The vertical side pieces of a sash or door panel. |
| Stop |
A wood trim piece applied to the window frame to prevent the closed sash
from swinging through the opening. |
| Tempered Glass |
A piece of glass that has been put through a special heat-treated tempering
process, allowing the glass to crumble under severe impact into small pieces to
reduce the chance of injury. |
| Thermal Barrier |
A non-conducting material used to separate the inside and outside surface
of metal sash and frame or metal door and sill, to stop the conduction of heat
to the outside which results in a cold inside surface. |
| Weather-Strip |
A strip of material, such as metal, plastic or felt designed to seal
between a sash and frame, preventing weather leakage. |
