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Air movement in a building is important. Stale air is bad for both the building and its users - so to ensure good ventilation, grilles are fitted into walls and some doors; and ductwork keeps fresh air circulating. But wherever air moves, fire and smoke can travel too. Where ductwork passes through different areas of a building, it provides an easy path for fire and smoke to spread. Intumescent dampers maintain fire compartmentation. So wherever ventilation is needed through a fire-resisting wall, a fire damper should be fitted. Where ductwork runs through that wall, a fire damper needs to be fitted inside the ductwork at that point. Smoke protection is also vital. We offer a range of intumescent grilles and dampers with an added smoke control shutter: our Talkback system. Linked to the fire alarm, the shutter closes at the first sign of a fire, stopping fast-moving cold smoke from passing through the grille.

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