Floor Radiation Dampers

Ceiling radiation dampers.

Floor radiation dampers.

Preventing the transfer of heat and flames into attic and crawlspaces is essential in limiting the amount of damage done in the. A ceiling radiation damper closes automatically to restrict the passage of heat. Unlike spring loaded fire dampers and smoke dampers ceiling radiation dampers from lloyd industries limit the transfer of heat into attics or through openings in the ceilings and floors. Series 51sb in a boot true truss.

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. They are used to protect hvac openings in fire rated horizontal ceiling assemblies. 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.

Series 51sb read more. A ceiling radiation damper shall be provided where the ceiling membrane of a fire resistance rated floor ceiling or roof ceiling assembly constructed as permitted in section 708 4 exception 2 of the international building code is penetrated. Adjustable models 0722a 0722a se and 0722a le available. Ceiling membrane considerations to achieve the fire resistance rating required by building.

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 available in butterfly style and curtain style. 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. 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.

Application ul fire rated floor ceiling assemblies.