Floor Radiation Dampers

A ceiling radiation damper shall be provided where the ceiling membrane of a fire resistance rated floor ceiling or roof ceiling assembly a listed smoke damper designed to resist the passage of smoke shall be provided at each point a duct or air transfer opening penetrates a corridor.

Floor radiation dampers.

Now with this true round radiation dampers architectural round diffuser with volume control may be used in place of square or rectangle flush mount diffuses. Ceiling fire damper may be installed in floor ceiling and roof ceiling assemblies with fire ratings of 3 hours and less. Ceiling radiation dampers are intended to limit the transfer of radiant heat into the concealed space when installed in the ceiling membrane of a fire resistance rated floor ceiling or roof ceiling assembly. Operated by a fuse link these dampers come spring loaded and are available with an easy access assembly.

Ceiling membrane considerations to achieve the fire resistance rating required by building. A ceiling radiation damper closes automatically to restrict the passage of heat. Ceiling fire dampers also known as radiation dampers are designed and tested to limit the radiant heat transfer through an air inlet outlet opening in the ceiling membrane of a fire resistance rated floor ceiling or roof ceiling assembly. Ceiling radiation dampers.

Static ceiling radiation dampers models mrcd mscd mscdsb mccd ceiling radiation dampers covered under ul 555c intended for installation in hourly rated fire resistive floor ceiling and roof ceiling assemblies in accordance with the standard for fire tests of building construction and materials ul 263. Preventing the transfer of heat and flames into attic and crawlspaces is essential in limiting the amount of damage done in the. Nailor model 0722 ceiling dampers are for use in round applications in lieu of hinged door type dampers in any ul ulc floor ceiling or roof ceiling assembly with up to a 3 hour fire resistance rating where air ducts are allowed. Exteneded collar models 0722 se and 0722 le available.

Adjustable models 0722a 0722a se and 0722a le available. They are used to protect hvac openings in fire rated horizontal ceiling assemblies. Series 51sb read more. Application ul fire rated floor ceiling assemblies.

Ceiling radiation dampers are available in butterfly style and curtain style.