Seismic Separation for Suspended Ceilings
Seismic Separation for Suspended Ceilings
(OP)
Hello-
We have an agency enforcing the requirement than ceilings over 2500 SF have a seismic separation joint with a gap determined by the designer? I can't seem to find anything on that. Any experience out there? Thanks.
rd78
We have an agency enforcing the requirement than ceilings over 2500 SF have a seismic separation joint with a gap determined by the designer? I can't seem to find anything on that. Any experience out there? Thanks.
rd78






RE: Seismic Separation for Suspended Ceilings
RE: Seismic Separation for Suspended Ceilings
rd78
RE: Seismic Separation for Suspended Ceilings
"The width of the perimeter supporting closure angle shall be not less than 2.0 inches (50 mm). In
each orthogonal horizontal direction, one end of the ceiling grid shall be attached to the closure
angle. The other end in each horizontal direction shall have a 3/4 inch (19 mm) clearance from the
wall and shall rest upon and be free to slide on a closure angle."
There is no aspect ratio mentioned. I suspect this is because the requirement for the separation is based on the weight of a 2500 sf ceiling which is the same regardless of which direction your going.
RE: Seismic Separation for Suspended Ceilings
h
www.SlideRuleEra.net
RE: Seismic Separation for Suspended Ceilings
RE: Seismic Separation for Suspended Ceilings