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Ceiling radiation dampers are used to provide the required fire and heat radiation protection for HVAC penetrations of floor ceiling and roof-ceiling assemblies having a restrained or unrestrained assembly fire resistance ratings of 2 hour or less, in accordance with UL263.
Standard fire dampers (1½ hr. and 3 hr.) do not provide the necessary heat radiation protection that is obtained by using ceiling radiation dampers.
Ceiling radiation dampers are also called ceiling fire dampers, radiation dampers, and radiation shields.
289
![Photo not available](/img/louver-placeholder.png)
Two Bladed Uninsulated Static Rectangular Ceiling Radiation Damper 291
![](img/t/a91-ceiling-damper.png)
Two Bladed Insulated Static Rectangular Ceiling Radiation Damper 293
![Photo not available](/img/louver-placeholder.png)
Four Bladed Insulated Static Ceiling Radiation Damper 295
![](img/t/a95-open-ceiling-damper.png)
Two Bladed Uninsulated Static Round Ceiling Radiation Damper 297
![](img/t/a97-insulated-ceiling-damper.png)
Two Bladed Insulated Static Round Ceiling Radiation Damper
![Photo not available](/img/louver-placeholder.png)
Two Bladed Uninsulated Static Rectangular Ceiling Radiation Damper 291
![](img/t/a91-ceiling-damper.png)
Two Bladed Insulated Static Rectangular Ceiling Radiation Damper 293
![Photo not available](/img/louver-placeholder.png)
Four Bladed Insulated Static Ceiling Radiation Damper 295
![](img/t/a95-open-ceiling-damper.png)
Two Bladed Uninsulated Static Round Ceiling Radiation Damper 297
![](img/t/a97-insulated-ceiling-damper.png)
Two Bladed Insulated Static Round Ceiling Radiation Damper