Acoustic Rated Fire Hoods for Ceiling Downlighters

USES: Meets BS EN 1365-2:2000 and BS476 Part 23:1987 Can be used in suspended, plasterboard or concrete ceilings Covers a wide range of mains & low voltage downlighters Lightweight & flexible cover can be fitted from below or above the ceiling Provides a highly insulating stable char when exposed to fire Prevents fire from penetrating the ceiling void and retains ceiling's fire protection integrity

BENEFITS: Acoustic Rated 30 or 60 minute fire rating Installed in seconds No screws, drilling or additional supported required Maintenance free Ventilated to reduce heat build up Once fitted downlighter can be fitted as normal

		Ceiling downlighters are widely used in residential and 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 downlighter, the soundproofing performance of the construction is seriously reduced. In addition the ceilings ability to perform in a fire can be reduced significantly as well which can be very dangerous. To combat this the Intumescent Acoustic Hood has been developed to give maximum acoustic and fire protection protection for holes created by he installation of downlighters and to allow for maximum ease of fitting. In a fire situation the cover expands internally (swells to over 3 times its original thickness) 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. The cover also adds mass behind the ceiling light which improves the soundproofing performance. Acoustic tests show that a ceiling with downlighters and acoustic hoods installed performs to within 1dB of the equivalent ceiling without any holes in it at all!! This product does not present any known health hazards during or after installation. Local Authority Building Control LANTAC Approved

ACOUSTIC TEST DATA
Separating Floor with no Lights	Airbourne	Rw 66 (-5;-12) dB	Impact	Lnw 54 dB
Separating Floor with 9 halogen downlighters and Acoustic Hoods	Airbourne	Rw 65 (-5;-12) dB	Impact	Lnw 54 dB
Internal Floor with no Lights	Airbourne	Rw 41 (-2;-7) dB	Impact	Lnw 79 dB
Internal Floor with 9 halogen downlighters and Acoustic Hoods	Airbourne	Rw 42 (-2;-7) dB	Impact	Lnw 80 dB

SELECTION GUIDE All covers are equally suitable for mains or low voltage fittings using "cool beam" dichroic or aluminium reflector lamps. It is only necessary to know the cut-out size and the height of the fitting. Select the cut-out size of the fitting in the left hand column. Read across to the right hand column that contains the height of the fitting concerned. Always select the exact height, or move up to the next size. For example: A cover for a fitting with a 98mm cut-out and a height of 95mm is required. In the left hand column you will see that the nearest cut-out size is 100mm; reading across the right hand columns, you will note that the SMALL is not suitable, the 83mm fitting height for the MEDIUM shown is also too small so you should select the LARGE size. Please note: if your fitting size is shown in the orange shaded area the cover can only be fitted from above the ceiling as the cover will NOT fit through the cut-out hole.

Part Code	Size	O/D x height mm
FH100	Small	150 x 150
FH110	Medium	200 x 200
FH120	Large	250 x 250
FH130	Extra Large	370 x 210
FH140	XL Extra Large	450 x 255

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All information contained in these details is given in good faith but without warranty. Custom Audio Designs reserves the right to alter the specifications of any product without notice.

©Custom Audio Designs 2006