Vertical Expansion Joints
Where should expansion joints be placed on a building? Changes in wall height and direction, penetrations such as doors and windows?
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From Arcchitectural Graphic Standards...
Expansion joints can alleviate thermal and moisture movement, especially in rigid or mortared assemblies. Expansion joints are generally parallel or adjacent to curbs and edgings, at right angle turns, around interruptions {e.9., manhole cover ass€mblies), at set distances in long runs of masonry, and where dissimilar materials meet.
From Building Construction Illustrated 7.50
Expansion joints are continuous, unobstructed slots constructed between two parts of a building or structure permitting thermal or moisture expanson to occur w/o damage to either part. Expansion joints can often serve as control and isolation joints.
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