Building materials which are used to prevent fire and smoke from passing through penetrations in fire-rated floors and walls.

Common types of firestopping include fibrous fire safing, fire penetration sealants, firestopping mortars, firestopping pillows, intumescent firestopping foams, silicone firestopping foams and mechanical devices for plastic pipe.

Typical applications include:

• Seal cracks, voids or holes against flame, smoke and water penetration
• Seal around conduit, cables, metal pipe, insulated metal pipe and ducts penetrating...