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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Jack Stud
Vertical framing members, generally 2x4's, which form the inside of the window or door rough opening. They support the header and run down to the sole plate.
Jalousie
Window made up of horizontally-mounted louvered glass slats that abut each other tightly when closed and rotate outward when open.
Jamb
The end vertical member of an aluminum framing system which terminates at the intersection of a wall. It is often referred to as a wall jamb.
Jamb Anchor
A metal device inserted in the back of a metal frame to anchor the frame to the wall. A masonry anchor is used in a masonry wall and a stud anchor in a wall built with wood or metal studs.
Jamb Extension
Pieces of material used to extend the depth of the jamb to equal the depth of the rough opening.
Jamb Liner
In a double-hung window, the track installed inside the jambs on which the window sashes slide. Vinyl or metal covering applied to the side jambs of double-hung and single-hung windows. They are generally formed to include an integral balance system and stops for the exterior and interior surfaces of the sash.
Joint Design
The design of a void to be filled with sealants to prevent air or water leakage.
