Various Sizes dependant on hole cut out size. See table below.
Our easy to install acoustic fire hoods for use with recessed lighting in both timber and concrete ceilings.
The Hoods also add mass behind the light, which improves the sound performance. Acoustic tests Main Application have shown that a ceiling with down lighters and acoustic hoods installed performs to within 1dB of the equivalent ceiling without any holes in it at all.
Down lighters in ceilings are widely used in commercial buildings. Each ceiling is subject to fire regulations and where applicable the ceiling construction needs to be fire rated.
However, once a hole has been made in the ceiling for a down lighter, the integrity of the construction and it's ability to perform in a fire can be reduced significantly. To combat this we have introduced a fire hood to maximum protection for holes created by the introduction of a down lighter and to allow for maximum ease of fitting.
In a fire situation the cover expands internally to fill all the available space with a highly insulating fire resistant char. Thus, the fire is unable to penetrate the hole and the cover is able to give additional insulation protection to the ceiling void to reduce the chance of heat build up and ignition of flammable materials such as accumulated dust and insulation.
These hoods are available in many sizes to suit the cut out space.
WE WOULD ALWAYS ADVISE AGAINST CUTTING HOLES IN THE CEILING TO FIT LIGHTS AS IT ALLOWS SOUND TO PASS THROUGH IT MUCH MORE EASILY. IF YOU MUST USE DOWNLIGHTERS PLEASE MAKE SURE YOU FIT THESE HOODS WITH OUR OTHER PRODUCTS.