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A new hit-and-miss type of grille (Ref HMG) offering fire and smoke protection for up to one hour. Two sizes and two types are available. Type C is for use in metal casement frames above windows, giving ventilation to the ceiling above, and type W is for use directly in the glazing of a bathroom or kitchen window.
- HMG designed to fit into head reveals on metal cased windows, or into windows such as in fire escape corridors, bathrooms and kitchens
- Fitted with intumescent which will expand in a fire, sealing the grille whether it is in the open or closed position
FIRE TEST PERFORMANCE
Tested to BS476 (Part22 1987), achieving 38 minutes fire protection.
HMG metal grille available in two options. Option /C for use in metal casement frames above windows giving ventilation to the ceiling above – a single section screwed in place. Option /W fitted directly into the glazing of a bathroom or kitchen window – two sections screwed together either side of the hole.
Please use the links below to download relevant information as PDF documents:
HMG GRILLES – CEILING VENTILATION TYPE
|HMG1/C||280mm x 110mm|
|HMG2/C||280mm x 140mm|
HMG GRILLES – WINDOW GLAZING TYPE
|HMG1/W||280mm x 110mm|
|HMG2/W||280mm x 140mm|