Drop Out Ceiling Tiles
Drop Out Ceiling Tiles, sometimes called "melt-out ceiling tiles", are heat sensitive and fall from the dropped ceiling suspension grid in the event of a fire, allowing the fire sprinklers to do their job. Per National Fire Protection Association 13 section 3.3.9, "A drop-out ceiling allows the installation of a false ceiling beneath an existing sprinkler system. Drop-out ceilings provide an alternative to relocating sprinklers beneath a new ceiling. Drop-out ceilings are evaluated to verify that they do not contribute to fire growth and that they do not significantly delay the operation of the sprinkler system". Those evaluation agencies and standards are:
- FM Global - Approval Standards for Plastic Suspended Ceilings
- UL - Ceiling Panels for Use Beneath Sprinklers
- ICC-ES - AC-12 Section 4.4 - Foam Plastic DropOut Ceiling Panels and Tiles
Commonly made from vinyl or expanded polystyrene, drop out ceiling tiles are available in multiple sizes and finishes from a variety of manufacturers. Installation is subject to the local jurisdictions having authority.