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Testimonials
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Please use our glossary to help become more familiar with the words, terms and phrases commonly found and used in the screens, windows and doors industry. You may either display the set of terms by A-Z or use our search form below to look for a particular term.
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| Cantilever |
| A beam, girder or truss overhanging one or more supports. |
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| Casement Handing |
| Side that the hinge in on. For residential windows, the hinge side is looking from the outside. For commercial windows, the hinge side is looking from the inside. |
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| Casement Window |
| A window in which the operating vents move out (casement outswing) or in (casement inswing) from the master frame. Each vent is hinged on the vertical axis to permit easy operation. |
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| Casing |
| Exposed molding or framing around a window or door, on either the inside or outside to cover the space between the window frame or jamb and the wall. |
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| Caulk Stop |
| An accessory added to the exterior leg of a window frame or exterior panning leg to create a parallel-sided caulking joint. |
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| Caulking |
| Sealants used to seal fixed and movable construction joints to prevent infiltration. |
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| Center Of Glass |
| All-glass area of a window except that within 2.5" (10cm) from the edge of the glass – used in measuring and calculating glazing performance such as R-values and U-values. |
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| CFM |
| Cubic feet per minute - a unit of measure used in air infiltration testing, e.g., "maximum .10 cfm per square foot of window area." |
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| Chamfer |
| To bevel a sharp external edge. A beveled edge. |
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| Check Rail |
| The bottom horizontal member of the upper sash and the top horizontal member of the lower sash which meet at the middle of a double-hung window. |
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| Cladding |
| A protective shield on the exterior of windows and doors. Integrity's clad exterior is made of Ultrex® with a thick, durable finish. |
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| Clear Glass |
| glass that is transparent. |
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| Clerestory Window |
| A window placed vertically in a wall above one's line of vision to provide natural light -- often at the intersection of two offset roof planes. |
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| CMR |
| Centerline of Meeting Rail - a reference line used to locate integral mullions and/or to size oriel (unequal) sash, e.g., "the height of the lower sash shall be 22" from the frame sill to CMR." |
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| Column |
| A structural vertical compression member. It is usually a long and slender post or pillar. |
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| Compatibility |
| The ability of two or more materials to exist in close and permanent association for an indefinite period with no adverse effect on one another. |
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| Composite Frame |
| A frame consisting of two or more materials; For example, a white interior with a beige exterior. |
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| Compression Gasket |
| A method of securing the glass into the aluminum frame glazing pocket by using a soft gasket on one side of the glass and a firm, dense gasket called a wedge on the other. Also see Wedge Glazing. |
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| Condensation |
| When the air inside an enclosure is warmer than the air outside the enclosure, the moisture vapor in the interior air will condense, creating small water droplets at the intersection of dissimilar materials (aluminum and gaskets). |
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| Condensation Gutter |
| A trough for carrying off condensed or infiltrated water; this may be drained to the exterior or allowed to evaporate. |
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| Condensation Resistance F |
| Condensation Resistance Factor (CRF) measures the ability of a product to resist the formation of condensation on the interior surface of the product. |
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| Conduction |
| A process of heat transfer whereby heat moves directly through a material by molecular agitation. The handle of a cast-iron frying pan becomes hot due to conduction. |
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| Conductivity |
| The transfer of heat through a given material – see U-value which is the measure of conductivity, the inverse of R-value. |
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| Continuous Air Spacer |
| An air spacer within an insulating glass unit (IGU) that does not use corner keys to hold the spacer together, thereby eliminating the corner joint, the largest cause of seal failure. |
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| Convection |
| A heat-transfer process involving motion in a fluid (such as air) caused by the difference in density of the fluid and the action of gravity. Convection affects heat transfer from the glass surface to room air as well as between two panes of glass. |
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| Cope |
| To notch an aluminum-framing member such as a channel, etc. so that another member may be fitted against it. |
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| Coped Joint |
| A joint between two aluminum-framing members where one extrusion is cut to the profile of the second. |
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| Cottage Double-Hung |
| A double-hung window in which the upper sash is shorter than the lower sash. |
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| Counter Bore |
| To enlarge a hole to a given depth. |
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| Countersink |
| To form a depression to fit the conic head of a screw or the thickness of a plate so that the face will be level with the surface. |
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| CR |
| Condensation factor determined using NFRC 500-2004. A relative indicator of a fenestration product's ability to resist the formation of condensation at a specific set of environmental conditions. |
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| Crack Length |
| Total outside perimeter of a window sash/vent; no longer used to define the AAMA air-infiltration rate. |
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| Crazing |
| Minute cracks in a surface or coating caused by force bending a material, such as aluminum, beyond the recommended minimum radius. |
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| CRF |
| Condensation Resistance Factor is a rating number obtained under standard-test conditions which allows a prediction, within reasonable accuracy, of the ability of a window, door or glazed wall to resist the formation of condensation on interior surfaces (Higher CRF value indicates better performance). |
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| Cripple |
| A short stud located under the rough sill or above the header. |
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| CSI |
| Construction Specifications Institute. |
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| Curb |
| a raised edge or border of a shower, usually made of tile, marble or fiberglass. |
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| Curing |
| The process of allowing sealants to dry and harden over a given period of time. |
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| Curtain Wall (Aluminum) |
| An exterior building wall which carries no roof or floor loads and consists of a combination of aluminum, glass and other surfacing materials supported by the aluminum framework. |
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| Curved Eave Lean-to |
| The rounded bent corner transition between the roof and front wall. |
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| Curved Glass |
| glass that has been specially formed to fit into a circular floor plan. |
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| Custodial Lock |
| Window hardware only operable with a tool or key. |
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| Custom Enclosure |
| an enclosure that requires specially cut glass and framework. |
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| Cylinder |
| The cylindrical mechanism has a keyhole which receives the key used to operate a locking mechanism. |
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| Cylinder Cam |
| Usually refers to the flat metal plate on the end of a mortise type cylinder which actuates the lock mechanism when rotated by the key. |
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| Cylinder Guard |
| Hardened protective shield designed to prevent unlawful entry by forcefully twisting and removing the cylinder. |
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| Cylinder Ring |
| Spacing collar to accommodate longer cylinders. |
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