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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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| Palladian Window |
| A large, arch-top window flanked by smaller windows on each side. |
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| Pane |
| One of the compartments of a door or window consisting of a single sheet of glass in a frame; Also, a Sheet of Glass. |
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| Panel |
| A major component of a sliding glass door, consisting of a light of glass in a frame installed within the main (or outer) frame of the door. A panel may be sliding or fixed. |
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| Panning |
| In replacement window work, the outside aluminum trim that can extend around the perimeter of the window opening; used to cover up the old window material. Panning can be installed in the opening before the window, or attached directly to the window before installation. |
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| Parting Stop |
| A narrow strip, either integral or applied, that holds a sash or panel in position in a frame. |
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| Passive Solar |
| A solar heating system that operates on natural thermal processes, and uses no external mechanical power to move the collected heat. Generally, the building's structure itself forms the solar system. |
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| Patio Doors |
| Sliding glass doors, often used for access to a deck or terrace. |
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| Patio Room |
| A modular wall system designed with single pane glass. |
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| Patterned Glass |
| glass that has a repeating shape embedded in the glass. |
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| Peak Load |
| The maximum thermal load to be provided by a heating or cooling system in a house. |
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| Photochromics |
| Glazing with the optical properties that change in response to the amount of incident light. |
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| Picture Window |
| A large, fixed window framed so that it is usually, but not always, longer horizontally than vertically to provide a panoramic view. |
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| Pile |
| Weatherstripping made of fibrous material mounted to a semi-rigid plastic base. Typically used to seal against air and water passage between moving parts in a window or door. Available with or without a center fin of Mylar. |
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| Pivot Bar |
| Hardware in a tilt hung window to connect the balance shoe with the operating sash. |
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| Pivot Door |
| a shower door that rotates on two metal pivots on the top and bottom of the door. |
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| Pivot Window |
| A window with a sash that swings open or shut by revolving on pivots at either side of the sash or at top and bottom. |
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| Plate Glass |
| A rolled, ground, and polished product with true flat parallel plane surfaces, affording excellent vision. It has been replaced by Float Glass. |
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| Plumb |
| The condition of exact vertical alignment. |
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| Polygon |
| A multi-side geometric shape with more than four sides, commonly used when referring to a conservatory design. |
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| Polyurethane |
| Product produced by the reaction of a polyfunctional isocyanate with a polyol or other reactant containing two or more hydroxyl groups. |
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| Polyvinylchloride (PVC) |
| An extruded or molded plastic material used for window framing and as a thermal barrier for aluminum windows. |
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| Poured And Debridged |
| Framing system thermal break made by flowing a catalyzed liquid material with low thermal conductivity into a one-piece channel and then removing the base of the channel or bridge after solidification to form a thermally improved extrusion. Also see Thermal Cavity. |
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| Powdercoat |
| a technique for applying paint to aluminum shower door frames. The aluminum is covered with a powder of dry paint particles and is then baked in an oven. This causes the powder to melt and then harden into a tough, colorful finish. |
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| Prime Frame |
| A window frame which has an extended perimeter leg 1" back from the window exterior plane, which becomes a nailing fin for new construction installation. |
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| Primer |
| A substance that improves the adhesion of sealant or paint. |
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| Projected Window |
| A window in which the operating vents move out (project out or awning) or in (project in or hopper) from the master frame. Each vent is hinged on the horizontal axis to permit easy operation. |
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| Psf |
| Pounds per square foot - a measurement of air pressure used in window testing, e.g., 1.56 psf (25 mph) or 6.24 psf (50 mph). |
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| Pull Hardware |
| A fixed handle or grip used to pull a door open. |
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| Punch |
| To perforate by pressing a non-rotating tool through the work. |
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| Purlins |
| Horizontal members extending between rafters for supporting the glass on slope-glazed systems. |
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| PVC |
| Poly Vinyl Chloride - in rigid frame/sash members, and in flexible gaskets. |
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| Pyramid |
| A square base design, typical to skylights, with all four slopes rising to form a point. |
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| Pyrolytic Coating |
| A special coating sprayed directly onto glass while it is still in a molten state, resulting in a permanently embedded surface coating. Sometimes referred to as hard-coat low-E. |
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