| 摘要 |
A layered roof construction and a suspended ceiling assembly are provided with a heat sink to help the ceiling assembly secure a desired fire rating. In order to prevent the buildup of heat in the plenum area between the layered roof construction and the suspended ceiling assembly, a heat sink with water of hydration is positioned in the layered roof construction to help assist in the absorption of heat passed through to the plenum area during a fire rating test. |
