All holes/voids in your compartmentation need to be plugged and the area made fireproof by using the relevant fire stopping products that are fit for purpose. Onyx Fire has trained technicians can assess the requirements, and carry out the relevant remedial works. Fireproofing is achieved by using a range of different fire stopping materials and methods. These can include intumescent seals and pipe collars, intumescent socket box inserts; putties; sealants; sprays and foam. In addition acoustic intumescent sealant is available where noise between compartmentations needs to be minimal e.g. in hospitals wards, schools and hotels. Pipe collars, sleeves and wraps work by providing a protective barrier to stop smoke from a fire spreading through rooms or floors. Intumescent paint can also be applied to certain areas, which again provides a protective layer in the event of a fire. Fire doors fitted with fire and smoke seals also provide passive fire protection, by hindering the spread of smoke and fire. Fully fitted fire doors can reduce the spread of fire by up to 120 minutes