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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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| Magnetic Latch |
| a latch that holds the door shut through the use of magnets. |
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| Marine Glazing |
| A U-channel of soft PVC which is wrapped around the edge of the glass, cushioning the glass against the aluminum or vinyl. This process allows for unrestricted expansion and contraction and watertightness. |
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| Master Key |
| A key that will operate a number of different locks, each of which is different from the rest. |
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| Master Keying |
| A system of keying cylinders so that one master key will operate all of them, secondary keys will operate only certain groups, and other keys will operate only certain individual cylinders. |
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| Meeting Rail |
| The part of a hung window where the two sash meet and create a weather barrier. |
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| Meeting Stile |
| The part of a sliding window where the two sash meet and create a weather barrier. |
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| Micron |
| One millionth (10-6) of a metric meter. |
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| Mil |
| One thousandth of an inch, or 0.0254 millimeter. |
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| Mill Finish |
| The original finish produced on aluminum by extruding. |
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| Missle Impact |
| Testing performed on windows to simulate the ability for a window frame and its glazing material to resist hurricane-driven debris. |
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| Miter |
| A joint made up of two members, each of which is cut one-half the total angle of the joint. |
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| Model Building Code |
| A construction code developed from input from industry, building officials, and others for use as a guide for the development of state and local building codes. Model building codes have no legislative or jurisdictional power. |
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| Model Energy Code (MEC) |
| The Model Energy Code is cited in the 1992 U.S. Energy Policy Act (EPAct) as the baseline for residential Energy Codes in the United States. It has been succeeded by the International Energy Conservation Code (IECC). |
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| Monolithic |
| A single lite or pane of glass. |
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| Mortise |
| A rectangular cutout which is fabricated in the aluminum entrance door and/or frame in preparation to receive a lock or butt hinge. |
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| Mortise Lock |
| A lock designed to be installed in a mortise on the stile of the door rather than applied to the door's surface. |
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| Mortise Type |
| Possesses a threaded surface for screwing it directly into a lock case and has a cam on the interior end which engages the lock mechanism. |
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| Mortise-And-Tenon |
| A strong wood joint made by fitting together a mortise in one board and a matching projecting member (tenon) in the other. |
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| MSDS |
| A Material Safety Data Sheet is a detailed information bulletin prepared by the manufacturer or importer of a chemical that describes the physical and chemical properties, physical and health hazards, routes of exposure, precautions for safe handling and use, emergency and first-aid procedures, and control measures. Information on an MSDS aids in the selection of safe products and helps prepare employers and employees to respond effectively to daily exposure situations as well as to emergency situations. |
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| Mulling |
| The act of attaching two or more windows or a door and transom units together. |
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| Mullion |
| A major structural vertical or horizontal member between window units or sliding glass doors. |
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| Mullion Cover |
| An extrusion that joins panning perimeter legs that extend over existing mullions. |
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| Muntin |
| Extrusions in the sash which are exterior (outside of the glass exterior face), internal (within the insulating glass airspace), or true (dividing the glass) which appear to or actually divide the glass into smaller lites. |
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